Installation technology of rigid PVC plastic door and window

1 scope

This technology is applicable to industrial and civil construction of plastic door and window installation.

2 construction preparation

2.1 materials and equipment:

2.1.1 of rigid PVC plastic door and window specification, model, dimensions shall meet the design requirements. Applied load does not exceed 800N/m2.

2.1.2 door and window frame fittings (iron foot) connected with the cave wall, generally by mechanical piercing tube bolt; screws or embedded wood brick; should be prepared as necessary.

2.1.3 Windows hardware specifications, models should be doors and Windows support.

2.1.4 doors and Windows should be installed to prepare wood wedge, steel nail.

2.1.5 sealants should be prepared according to design requirements. And there should be proof of delivery and product certification.

2.1.6 varieties should be selected according to the design requirements of caulking materials.

2.1.7 head tapping screws, wood screws as needed to prepare.

2.1.8 cement: No. 325 more than ordinary Portland cement or slag cement.

Sand: 5mm sieve, sieve well and set aside.

Bean stone: prepare a little.

2.1.9 main tools: wire pendant, pink bag, a spirit level and supporting plate, hammer, flat spatula, steel tape measure, screwdriver, impact drills, nail guns, saws, planes, small shovel, a small bucket, drill, etc.

2.2 operating conditions:

2.2.1 structure works have been finished, meet the qualifying standard of acceptance, transfer procedures between the good jobs.

2.2.2 dimensions as shown better door and window line of position, and based on the play the good +50cm level, determine the installation height.

2.2.3 checking doors and Windows that have been retained to wall size and elevation meets the design requirements, problems should be corrected in a timely manner.

2.2.4 checking whether the connector placement of plastic door and window installation meets the requirements.

2.2.5 check plastic door color is uniform. Is free of cracks and pitting. Stomata and visible bruises.

2.2.6 is ready to install scaffolding and safety protection measures.

3 operational processes

3.1 process:

Line the rules → jambs processing → check → plastic doors and Windows of the installed connector appearance check →

Request delivered to the installation site as shown: → → → caulking around the Windows and doors installed plastic doors and Windows installed metal accessories → cleaning

3.2 the procedure should be introduced into port construction, shall not be made after the first construction. Plastic door and window frame to connector as shown in Figure 8-4.

3.3 check the door hole size is larger than the size of door and window frames 3cm, you should first pick your cut.

3.4 Summary of installation position the drawing size on the doors and Windows box line and the vertical elevation control line.

Iron foot 3.5 is installed on a Windows box.

3.6 install door and window boxes, and by looking for a vertical line in place and elevation with a wooden wedge temporarily fixed, check the side vertical and diagonal lines, after passing the bolted iron foot and firm structure is secured.

3.7 caulking: window box with a crack in the wall should be constructed according to the design requirements of caulking materials such as asphalt used in requests or foam filled. Sealant closed surfaces with thickness of 5~8mm.

3.8 Windows attachments installation: installation be sure to drill boreholes, using self-tapping screws screwed into, do not beat with a hammer or a hard object and prevent damage to the box.

3.9 after installation finished product protection, pollution prevention, and welding sparks burn and damage the surface.

4 quality criteria

4.1 project:

4.1.1 quality of plastic doors and Windows and their attachment and glass must comply with the design requirements and the provisions of the relevant standard.

4.l.2 plastic doors and Windows must be installed firmly, numbers, locations of embedded iron parts, laying and connection method should comply with the design requirements and the relevant provisions of the standards.

4.1.3 plastic door and window installation position and opening direction must comply with the design requirements.

4.2 Basic project:

4.2.1 plastic doors and Windows closed tight, flexible, non-blocking rebounding, no distortion and warping.

4.2.2 annex plastic doors and Windows installation is complete, install strong, correct position, upright, opening and close flexibly applicable appearance.

4.2.3 the plastic door filled the gap between the window frame and the wall full of dense, smooth surface, impaction material meets the design requirements.

4.2.4 plastic door surface is clean and smooth, the same color, no scratches scratches, no pollution, seam is tight.

4.3 allowable deviation, as shown in table 8-5.

5 finished product protection

5.1 when embedded waterproof sealant around the window frame, the operation should be carefully, ointment not contaminated door and window frames.

5.2 coat of exterior wall, interior wall spraying, the plastic blocking the doors and Windows to prevent pollution.

5.3 indoor cement mortar must be blocked well before the plastic Windows and doors, to waterproof mud pollution Windows and doors.

5.4 sewage, garbage, filth, and not through the window to the ground.

5.5 lift, removal, transport of scaffold and scaffold, not in the door frame which dragged on.

5.6 installation of equipment and piping should be protected from material damaged doors and Windows.

5.7 no stand at the window sash.

5.8 sash installed in time after installing hardware, turn off the window lock to prevent wind damage to doors and Windows.

5.9 no nail hammering, or carved on the doors and Windows, no scraping or scrubbing with a hard object and other resources to clean up the Windows and doors.

6 quality problems to be noticed

6.1 transport storage damage: when transported with care, when stored in the warehouse with sleeper pad flat on the ground and direct deposit, and should be kept away from heat sources.

6.2 door window frames loose: installation Shi should first in door window box Shang by design provides of location drill, with since attack screws will plating zinc connection pieces tight solid; electricity hammer in doors and Windows hole playing hole, loaded into nylon expansion tube, doors and Windows installation Hou, with wood screws will connection pieces fixed in expansion tube; single brick and the light wall, should masonry concrete block wood brick, to increased and connection pieces of pulled knot firm degree, makes frames installation Hou not loose.

Plastic doors and Windows installation tolerances in table 8-5

Project tolerance (mm) test method

1 door and window frame two diagonal difference ≤ 2000mm

>2000mm 3

5 steel measuring tape to check

2 sash and casement window box poor lap width 1 depth gauge or a steel ruler to check

3 casement window Tang door adjacent to door cross corner width difference of 2 plates, cable and check

4 door opening force limit fan size ≤ ≤ 40N 1.5m2 100N spring scale hook

Push-pull fan door opening force limit fan area >1.5m2 60N hand hoist 5 average

5 door sash and frame or adjacent State edge parallel 2 1M steel ruler check

6 door lip sewing or fan and box joints limit State transverse joints between 2~4

7 spring door door leaf and ground clearance joints limit 2~7

8 door counterpart sewn shut down level 2 with depth gauge check

Door and window frames (spell-containing Tang), a ≤ 2000mm 2 1M side vertical supporting plate check

9 door and window frames (spell-containing Tang), side vertical >2000mm 3 1M supporting plate check

10 door and window frames (spell-containing Tang) level 2 1M level of scale and wedge feeler Gage check

11 steel plate for door and window frames at 5 feet checked, compared with baseline

12 double doors and Windows inside and outside the frame, jamb (spell-containing Tang) Center from the 4 with a steel ruler to check

6.3 the window frame and the wall gaps are not filled soft material: fill in soft materials such as styrofoam or mineral wool, with walls formed of elastic connections.

6.4 after Windows installation variants: filling too hard and big, made of extrusion deformation shall not spread take a scaffold on the doors and Windows.

6.5 sash does not block sealant: should operate according to the drawings.

6.6 connection screws hammer directly within the getting started window frames: no first use a hand drill drill by the rules, then turning the screw.

6.7 pollution protection measures, cleaning is not serious.

6.8 hardware damage: due to improper after installation, do not pay attention to when using.

7 quality records

This standard shall meet the following quality records:

7.1 Windows product certificates and test reports.

7.2 hardware certification.

7.3 heat preservation material proof of caulking materials and factory certificate.

7.4 seal plastic factory certificate, and instructions for use.

7.5 quality inspection and assessment of records.

Door installation

1 scope

This technology is applicable to rated load 5000kg and below rated speed 3M/s and the following types of Chinese-made traction-drive elevator door installations.

2 construction preparation

2.1 devices, materials requirements:

2.1.1 door parts should be in conformity with drawings, quantity range.

2.1.2 sill, doors, Office doors should be no deformation of the slide, damaged. All other parts should be intact, functional and reliable.

2.1.3 production of steel bracket and bracket bracket steel to meet the requirements.

2.1.4 welded and bolted to the factory certificate.

2.1.5 cement, sand must conform to the provisions of chapter II.

2.2 the main tools:

Bench drill, hammer, level, steel ruler, square, welding tools, welding tools, wire pendant, oblique feeler gauges, small shovels, shovels, hammers, chisels.

2.3 operating conditions:

2.3.1 scaffold beams should be without prejudice to the stable loading sill, door installation and construction requirements.

2.3.2 the entrance hall and the scaffold on a clean, clutter-free. Protective door is safe and reliable. Fire safety measures, and designated personnel to watch the fire.

3 operational processes

3.1 process:

Steady load sill → install the door pillar, slides, door pockets machine → → installed Office doors, adjust the door locks, electric lock installation

3.2 steady loading sill:

3.2.1 by requirements by model put two root office door installation baseline (senior ladder best put three article line, that door in the a article line, door on both sides two article line), in Office door to Kan Shang draw NET door width line and the Office door center line, in corresponding of location playing Shang three a lying points, to baseline and the this logo determine to kan, and cattle leg and the cattle leg bracket of installation location (Figure 5-53).

3.2.2 If the sill bracket to concrete structures, rinse with water, will put his paw on the sill. Then use the fine stone concrete (cement grade not less than 325#. The volume ratio of cement, sand and stone is 1:2:2). Sill with stabilization level leveling feet, while three-bedroom respectively are three baselines, and finding a good distance from the line.

Cooking good stability should be higher than the finished decorating the ground 2~3mm, if finished decorating the ground for concrete to, then 5~10MM should be high, and according to 1:50 grade concrete floors and sill flat trowel (Figure 5-54).

3.2.3 If no concrete door bracket, embedded iron welding on brackets, installation of steel bracket to steady loading sill, in two ways:

3.2.3.1 lift rated load in the elevator up to the 1000kg, available not less than 65mm angle steel frame, welded, and steady load sill (Figure 5-55). Corbel brackets of not less than 3.

3.2.3.2 lift more than rated load 1000kg of all types of elevators (not including 1000kg) δ =10 plate and trough can be used steel Corbel bracket, welded, stable loading sill outside (Figure 5-56). Corbel brackets of not less than 5.

M1 and M2 are respectively marked (l for car guide spacing).

3.2.5.2 stability when loading sill, square measurements, the hall door sill from the car side before the two rails are in the size of B+H-d/2

B--

H——

D--car guide car sill centerline to edge size;

Elevator sill and door sill from the Office (usually 25mm or 30mm);

Car guide working face width.

3.2.5.3 about moving the door sill to M1, M2 and align the square outside corners, so that the location of the sill is determined (Figure 5-58). To review the Office center point is correct, m door sill center point can be measured from the cabin two lateral edges of the rail distance, S1 and S2 are equal (Figure 5-59).

3.3 Installing the slides, on the door pillars, door

3.3.1 sill installation door pillar after hardening. Brick wall with the discerning wall eyes buried anchor bolt (Figure 5-60).

3.3.2 if any embedded iron concrete structure wall, screws can be welded directly on the embedded iron (Figure 5-61).

3.3.3 wall concrete structure without embedded iron, add location to the corresponding M12 expansion bolts 2 150mmx100mmx10mm steel used as embedded iron installed (Figure 5-62). Other installation above.

3.3.4 If the door slides, door pillar to circle away from the wall than 30mm should be fixed if the washer higher use made of thick steel pipes welded on both ends processed iron, to ensure that they are firmly (Figure 5-63).

3.4 Installing the door, adjusting the door:

3.4.1 feet at the end of the door, door pulley mounted on the door, turn the cam to the maximum value (and sliding distance). And guide at the end of the foot into the door sill trough, hang round on the slide.

3.4.2 in 6mm thick on the doors and sill pad support. Pulleys with special gasket between the frame and door leaf adjustment, so as to meet the requirements, then the wheel frame and the door leaf fastening the connecting screws, the repatriation of the eccentric wheel to slide the spacing is less than 0.5 m m, removed doors and sill pad things, coasting test, reached the light easily qualified (Figure 5-65).

3.5 lock, electronic lock, safe switch installation:

3.5.1 installed prior to locking, locking arms, rollers, springs and other adjustments as required, making it flexible and reliable.

3.5.2 locks and door safety switch according to the drawing provided locations for installation. If the mounting screw holes on the device meets the requirements of drawing you want to modify.

3.5.3 adjust door locks and door safety switch, to reach only two doors (or fans) off met the requirement in order to make door lock electrical contacts and the door safety switch.

If the door fixing screw holes for adjustable, locks in place installation and adjustment, you must add set screws to prevent locking shift.

3.5.4 when the car door and hoistway door linkage, hook lock should be no decoupling and the tool holder, the door should run smooth, jitter-free and crash.

4 quality criteria

4.1 the elevator sill and hoistway door sill pitch deviation of each layer no more than mm.

Inspection method: standard checks.

4.2 open knife with the hoistway door sill and door opening set of wheels car gap between sill and must be within the scope of 5~8mm.

Inspection method: standard checks.

4.3 the Office doors slide on lateral vertical plane inside of the sill slot vertical distance a, should conform to the drawings, slides on the ends and the Middle three (1, 2, 3) wait for measuring relative error shall not exceed ± 1mm. Track and sill on the parallelism error should be less than 1mm. Guide is not Plumb a ' shall be not more than 0.5mm (5-66).

Inspection method: hanging, standard inspection.

4.4 Hall doors vertical deviation is less than 2mm, out the door opens is not greater 10MM, turn eccentric wheel door slide clearance shall not exceed 0.5mm.

Inspection method: hanging, standard inspection.

4.5 door installation, adjustment should be to:

Doors smooth, clean and without damage. Brisk opening and closing smoothly. Also closed when the door is closed in, the door.

4.6 office door frame pillar dip errors and on slide level errors should not exceed 1/1000.

Inspection method: do open and close Visual check.

4.7 after the door closed, machine locks should be immediately locked the door, and for its flexible, hook has 1mm activity (Figure 5-67), hook is locked in the Office door, not the door opens.

Inspection method: standard and Visual check.

4.8 after the door closed, door lock electrical conductivity and contact must be good. If the door mounting holes for adjustable door town after installation and adjustment, you must add set screw fixed.

Inspection method: Visual check. 4.9 office door door bottom and sill gaps at 6 ± 2mm.

Door with door spacing of 6 ± 2mm.

Inspection method: standard checks.

4.10 allows deviation:

Hoistway door sill and door installation size, tolerance and inspection methods should meet the requirements of table 5-10.

Hall door sill and door installation dimensions, tolerances and methods of test table 5-10

Allowed deviation of the project or required inspection methods

1

2

3

Hall 4 door sill eventually higher ground (mm)

Hall door sill level

Door jamb vertical

Center opening when the door is closed the gap is less than (mm) 2~5

1/1000

1/1000

2 foot check

Standard check

Hanging wire, standard checking

Standard check

5 finished product protection

5.1 the doors, door sets, sill has a protective film to completion before you can remove the protective film.

5.2 door components in the construction process to protect, not to break it.

5.3 filling gaps between the wall and calls for measures to prevent deformation of the door.

6 quality problems to be noticed

6.1 fixed when steel door frame, welding on stiffening the door, do not weld directly on the door.

6.2 all welded and bolted the fixed part must be solid and reliable.

6.3 usually need embedded in concrete components, must be checked by the relevant departments to handle the concealed work procedures, to pouring concrete.

6.4 If there is damage, deformation of the various components of the Office and must be repaired or replaced, qualified before the use.

Construction technology of cement plaster pavement

1 scope

This technology is applicable to industrial and civil architecture in cement mortar ground.

2 construction preparation

2.1 materials and equipment:

2.1.1 cement: Portland cement and ordinary Portland cement its marking shall not be smaller than No. 425 and mix cement of different varieties, different marks is strictly prohibited.

2.1.2 sand: sand or coarse sand should be used, 8mm aperture sieve sediment should not be greater than 3%.

2.1.3 equipment: mixer, wheelbarrows, Mu-iron, wood float, trowel, slot valve, watering can, shovels and small buckets and long brushes, brooms, brushes, pink bag, cold chisel, hammer.

2.2 operating conditions:

2.2.1 the ground (or floor) pad embedded pipeline in the ground and has been done. Through the vertical tube has an out of the floor, it tube hole plug the Compact. Drain the room should find a good pan of water.

2.2.2 wall +50cm horizontal elevation line has bounced around on the wall.

2.2.3 the door frame had been made, and inside the box to get protection, prevent carts damaged.

2.2.4, and plastering the walls have been finished. Waterproof finish.

3 operational processes

3.1 process:

Elevation, elastic line base treatment → → → sprinkler wet plaster cakes and standard mortar reinforced → mix →

Brush cement based mortar surface layer → → → rub wood trowel flat iron trowel pressure first →

The second press third press Polish → → conservation

3.1.1 base treatment: first swept away the dust on the base, with a wire brush and chisel brush, scrape mortar and ash layers, 10% aqueous solution of caustic soda to brush out the base oil, rinse with clear water depletion in a timely manner.

3.1.2 elevation line: according to the +50cm horizontal line on the wall, measure down surface elevation, and playing on the wall.

3.1.3 sprinkler wet: grass-roots even the Earth with a watering can watering again.

3.1.4 plaster bread and gluten (or red muscle): according to the room around the playing surface level line on the wall, determine the surface layer thickness of plaster (not less than 20mm), and then began plastering the horizontal line a pie (5cmx5cm), horizontal spacing is 1.5~2.00m, gray plane is the ground surface elevation on the cake.

If the room is large, in order to ensure the overall surface smoothness muscle (or red muscle), spread the mortar between the ash cake, same width and gray pie wide with a wooden float is consistent with a grey upper surface of the cake.

Pu plastering mortar mix for pie and bar with surface mortar the same.

3.1.5 mixing mortar: the volume ratio of cement mortar should be 1:2 (cement: sand), which schedules should not be greater than 35mm, the intensity level should not be less than the M15. In order to control the amount of water, you should use the mixer to mix and match.

3.1.6 brush combines layers of cement slurry; before the cement mortar; painted cement floor, lighter than the water it as 0.4~0.5 (before brushing clean the ashes to the plaster cake; watering moist again), not excessive brushing area, paved with the brush with mortar.

3.1.7 cement mortar surface: brushing water mud followed by cement mortar, between the ash cake (or rib), spread the mortar evenly, and then press ash cake with a wooden scraper bar (or bars) height level. Laying mortar if the gray pie (or muscle) has hardened, Mu gang after scraping, and will use the ash cake (or rib) out, filled with mortar.

3.1.8 rub wood trowel: wooden scraper bar after scraping, immediately rub wood trowel flat, back to operating from inside to outside, and feel free to use 2m on foot to check the flatness.

3.1.9 iron wipe child pressure first again: wood wipe child wipe flat Hou, immediately with iron wipe child pressure first again, until out pulp weizhi, if mortar had dilute surface has bleeding phenomenon Shi, can uniform sub a again dry cement and sand (1:1) of mix collection material (sand to had 3mm screen), again with wood wipe child forced wipe pressure, makes dry mix material and mortar close combined for one, sucking water Hou with iron wipe child pressure flat. If there are requirements of the ground and on the surface layer elastic frame bar, slot valve slit, parting with a chute into flat, straight, smooth. These operations are completed before the initial setting of cement mortar.

3.1.10 press Polish II: surface mortar after initial set, people step up, when there are footprints but not sinking, with an iron trowel pressure a second time, side pressure side crater at the top requirements do not leak the pressure, pressing, calendering. Ground pressure after the valve slide, clear seam edges, cracks, seams smooth and straight.

3.1.11 third press: in the third before the final setting of cement mortar pressure light (people step on it a little footprints), iron trowel to wipe up when no pattern, with an iron trowel pressure again leave all lines when pressed, compacted, calendering (must be completed before the final set).

3.1.12 conservation: calender after the completion of the ground 24h, laying sawdust or other material covers water conservation, moist curing period of not less than 7d when the compressive strength up to 5MPa can master.

3.1.13 in winter when indoor temperature should not be below + 5 c.

3.1.14 skirting: according to the design map when plastering the wall body, skirting the bottom surface of mortar mortar wiped twice. When not plastering the wall body, skirting just plastering mortar.

3.1.14.1 skirting underlying cement mortar: cleaning the grass-roots level, water moist, 50cm line measuring baseboard upper elevation above sea level, and vertical lines determine the skirting thickness of plaster, then pull line, set, gray paste cake, 1:3 cement mortar, screed scraping, rubbing the flat, and water conservation.

3.1.14.2 plastering mortar: mortar well at the bottom, after hardening, catchy cable stuck stuck on foot, 1:2 cement mortar, with Gray Ash bracket, wooden trowel on plaster, then Derby plate tight one foot perpendicular to the ground level, with an iron trowel calendering, Yin and Yang angular trowel for corners, baseboards and catchy skating calendar.

May refer to the operation technology of wall cement mortar.

4 quality criteria

4.1 project:

4.1.1 cement, sand material must comply with the design requirements and specification for construction and acceptance of rules.

4.1.2 mortar mix to be exact.

4.1.3 combination of ground surface layer and the grass-roots level to be fixed without empty drums.

4.2 Basic project:

4.2.1 surface clean and free of cracks, peeling, Matt surface and sand, and so on.

4.2.2 a floor drain and slope requirements of the ground, slopes should comply with the design requirements, not pan of water, no water, no leakage, combined with floor drain close smoothly.

4.2.3 baseboards should be highly consistent, uniform wall thickness, combined with the wall firmly, local empty drum length is not greater than 200mm and not more than 2 in the context of an inspection.

4.3 allowable deviation, table 7-5.

Cement floor tolerance table 7-5

Project tolerance (mm) test method

4 2m m on foot and 1 surface flatness wedge feeler Gage check

2 toe head straight 4 la 5M, standard checking

3 seams straight 3 pulling 5M check

5 finished product protection

5.1 ground operations to pay attention to the protection of other professional equipment, such as buried pipelines are not free to shift in the ground, floor drains shall not block mortar.

5.2 surface finish after no entry during the maintenance period.

5.3 in the finished floor painting, electrical, heating and plumbing Professional operation, take care not to break the surface layer, paint, paste don't pollute surface.

5.4 winter construction of cement mortar floor operating environment such as below + 5 c, shall take the necessary measures of cold warm and strictly prevent freezing injury, especially early in the cold will reduce the surface strength, causing sand, cracks and other quality accidents.

First, cement mortar ground 5.5 If, when after plastering the walls, paying special attention to covering the surface layer, and non-stored in the surface layer mixing mortar and mortar.

6 quality problems to be noticed

6.1 hollowing and cracks

6.1.1 grass-roots cleanup not completely, and not seriously: in wipe cement mortar zhiqian must will grass-roots Shang of bond real, and dust, and oil completely processing clean, and seriously for cleaning wet, this is guarantee surface layer and grass-roots combined firm, and prevent empty drum crack of a key process, if not carefully seriously clear, makes surface layer and grass-roots Zhijian formed a layer isolation layer, led upper and lower combined not prison, on will caused surface layer empty drum crack.

6.1.2 brushing water mud combined layer not meet requirements: in has processing clean of grass-roots Shang brush a again water mud, purpose is to enhanced surface layer and grass-roots of bond force, so this is a items important of process, brushing water mud scheduling to suitable (General 0.4~0.5 of w/c), brushing Shi to uniform shall not leak brush, area don't had big, mortar Pu how many brush how many. In general tend to paint a large, spread mortar is slow, brush up cement quick dry, not only can't afford the bond role, and instead play a role in isolation.

Be sure to paint with a brush, mix well cement slurry, dry shake concrete surface can not be used after, then watered with a broom to sweep back and forth approach, due to uneven watering, dry cement thin uneven, also affect the bonding quality of surface layer and the grass-roots level.

6.1.3 in precast concrete slab floor and first floor heating surface trench on the performance of cement mortar is easy to produce hollow, crack, prefabricated structure design of horizontal and vertical seams must be requested with C20. Packing of fine stone concrete vibrating, compacting, as a precast slab installation, after the agreement is not completely flat upper surface elevation, height difference is large, uneven when laying cement mortar, prone to cracking, so is the use of fine stone concrete surface.

First floor heating trench cover between the concrete pad with the ground due to subsidence is not uniform, also caused cracks and crack control measures to be taken.

6.2 ground sand

6.2.1 maintenance of sufficient time, the early master: beginning of the hardened cement, in the water or in a humid environment conservation to make cement particles fully hydrated, improve surface layer strength of mortar cement. If in the case of short curing time is very low, people use early, they will just harden the surface causing damage and destruction, resulting in surface layer of sand, there pits. Therefore, upon completion of the cement floor, quality of the conservation work on the ground is a powerful quality, you must pay attention to, to compressive strength up to 5MPa to master operation.

6.2.2 using expired, the label is not enough cement, mortar mix is not uniform, pressure a few times, such as during the operation, have contributed to the phenomenon of sand.

6.3 leak room pan of water

When laying on the surface layer of mortar first checks whether the slope of the cushion meets the requirements. Ground with cushion, in front of the laying mortar plastering pie and bar when, according to design requirements good slope.

6.4 layer only, lines

Must be carefully according to the process described in the previous request, with an iron trowel pressure a few times to operate, and finally in cement before the final set pressure shall not leak until the front lines again until the pressing, calendering.

7 quality records

This standard shall meet the following quality records:

7.1 cement factory certificate.

7.2 acceptance of concrete project quality assessment form.

Installation technology for indoor gas fire extinguishing system

1 scope

The standard is suitable for civil and industrial buildings set in carbon dioxide fire extinguishing system, Halon 1211, 1301 fire extinguishing system of pipeline and equipment installation.

2 construction preparation

2.1 after receiving the task, earnestly familiarity with construction drawings, checked against the renovation and the construction site pipe and nozzle position is consistent, as problems with design consultation and the negotiation formalities in time. Determined according to the characteristics of the construction method, is equipped with the resources required.

2.2 equipment and materials:

2.2.1 fire service fire extinguishing system main equipment selection of materials shall comply with 611 "General requirements for the installation of fire engineering" of the relevant content.

2.2.2 major equipment: fire extinguishing agent storage containers and system components including valves, container valve, selector valves, valve drive device and nozzle. These system components should be addressed to the national quality supervision and testing center qualified. Cannot retest products used in the system, such as security patch and so on, should be issued by the manufacturer of the same batch of product test reports.

2.2.3 General material: pipes and fittings, steel, welding rods, nitrogen, oxygen, acetylene, PTFE tape, expansion bolts, bolts, nuts, and gaskets; oil, paint, thinner, smaller lines, wire, batteries, and so on.

2.3 main machines: saw tube machine, casing machine, bench drill, hand drill, shot nail gun, welding machine, air compressor, dedicated bent tube machine, step phone, tube clamp, pressure case, handsaw, hammer, adjustable tube dedicated bracket, hacksaw, file, die, wrench, live wrench, screwdriver, hammer, cold chisel, steel tape, flat feet, square, oil standard caliper, level feet, line pendant, white silk or white, pencil, chalk, pencil,.

2.4 operating conditions:

2.4.1 reserved embedded should be aligned with the structure of construction.

2.4.2 required for network installation reference line shall be determined and marked. Ceiling in the pipeline should be completed by the ceiling.

2.4.3 equipment should be installed in the device after you complete the crude decoration.

3 operational processes

3.1 process:

Installation ready to install → → network → system equipment and accessories installed commissioning and function of acceptance

3.2 installation preparation:

3.2.1 familiarity with drawing paper and review pipelines to control site, identify problems and design solutions in a timely manner. Check for correct reserve embedded; interim pick your cut and design, construction coordination.

3.2.2 enter testing equipment and materials: equipment and material specifications: model shall meet the design requirements, look, defects, deformations and corrosion-free, galvanized or painted uniform no shreds, interface thread and flange seal surface damage; pressured pharmaceutical cylinder pressure gauge pointer should be within the specified range. Select valve, check valve, high pressure hose, collecting pipe hydrostatic test pressure and leak test results one by one, shall meet the specifications provided.

3.3 network installation:

3.3.1 gas fire suppression system pipe should be selected according to design requirements or the storage pressure, cold-drawn precision seamless steel tube and is usually used inside and outside galvanized. When the nominal diameter less than or equal to 80mm, the threaded connections should be used when 80mm mm nominal diameter pipe, flange connection should be used. Threaded and flanged fittings should meet the test pressure and inside and outside galvanized. For corrosive environments can be used for zinc coating or stainless steel pipes.

3.3.2 the piping installation should be carried out before straightening and cleaning up debris. Flange connections, were damaged by welding zinc plating to do with preservatives. Thread connection, thread packing polyethylene PTFE tape should be used. Cutting nozzle application file NET Burr.

3.3.3 fire extinguishing pipe must be fixed firmly. Nominal diameter mains greater than or equal to 50mm, the vertical and horizontal direction should at least install a baffle brace. When through the floors of buildings, and shall have a baffle on each bracket. When the horizontal line changes direction, slosh bracket should be added. Piping support and hanger maximum spacing should be installed in accordance with the following provisions:

Nominal diameter (mm): 15 20 25 32 40 50 65 80 100 150

Maximum spacing (m):1.51.82.12.42.73.43.53.74.35.2

3.3.4 dry tube installed, a bottle of pipe should be installed first, find the right size after immobilization, distance between tubes and tube should be in strict accordance with construction drawings to determine, ensure the equipment installation size, then order other pipelines. All piping installation size should be consistent with the design drawings, do not arbitrarily changing the pipe direction and length.

3.3.5 halon 1301 and tee diversion of export carbon dioxide pipeline should be installed horizontally.

3.3.6 ceiling sprinkler branch pipe installation, nozzle position should be determined according to the drawings in the field, can fit ceiling decoration of the conditional, but ceiling panels should be completed before the system pressure, tightness test. Sprinkler branch pipe should be added to the attachment bracket, bracket and the nozzle duct length should not exceed 500mm.

3.3.7 network strength test shall be performed is installed, such as the use of hydraulic pressure test, the test pressure is 1.5 times working pressure. Such as air pressure test, the test pressure is 1.2 times times the working pressure. Test pressure regulator 5min, no significant leakage, I think the pipe deformation for qualified. Pipe hydrostatic strength test pressure high pressure carbon dioxide fire extinguishing system should be 15MPa.

3.3.8 strength test, the network should be purged. Purging pipe ends should ensure the flow of 20m/s when using checked cloth until no rust, dirt, water stains and other booty appears qualified.

3.3.9 pipe network pressure test, after the purge gas pressure leak test should be carried out, test pressure working pressure regulator 3 minutes, pressure drop not greater than 10% qualified.

3.3.10 network volume not work when the pressure is not high, strength testing, purging and nitrogen leak test should be used.

3.4 equipment installed:

3.4.1 pharmacy cylinder installation: cylinders transport protection measures need to be taken to prevent collisions, bruises. Install the pressure gauge when the observation plane and the product label should be facing out. Cylinders should be arranged in space comply with the design requirements. Cylinder weight floor commitment fixed is generally fixed a channel on the wall first, and cylinders with holding cards with channel lock together. Hold card height should be around cylinders 2/3 and try to avoid the sign. When the channel cannot be fixed on the wall, and also be a framework for rooting in the ground.

3.4.2 set pipe installation: chemical cylinders through the elbow joint, high pressure hose and nonreturn valve is connected with the collecting pipe. Collecting pipe welding method should be used, each product should be used before welding machine manufacturing, galvanized after welding. When storing the pressure is not greater than 4.0MPa, diameter not greater than 80mm, or threaded connection. Collecting pipe should be located at least two reliable fixation. Ends of shall have a safety relief valve.

3.4.3 select valve installation: select the vent valve installed in the flow tube, when the installation height exceeds the 1.7m operational measures should be taken. Select valves with threaded connections should be increased when a flanged interface. Select valve installation should be a high degree of consensus.

3.4.4 valve drive installation:

3.4.4.1 valve drive device function is in a protected area of fire opened the pharmacy when the cylinder container valves and fire selector valve. Driving mode electromagnetic, pneumatic and mechanical manual drive, and so on. Control mode of automatic, manual and emergency braking.

3.4.4.2 electromagnetic drive device of the electrical connection cable should be fixed fire extinguishing agent storage containers, frame or wall fixing.

3.4.4.3 manual cable-drive unit includes: protection box, cable box, pull handles, wire ropes and manual valves. Steel wire ropes shall have a casing and internal and external corrosion protection. Cable bend special pulley. Sleeve and protective case should be fixed firmly.

3.4.4.4 install objects when the gravity-driven mechanical drive device, should ensure that the weight falls trip no barrier, required for their journey should exceed the valve opening stroke 25mm.

3.4.4.5 pneumatic actuators of nitrogen bottles, copper pipe and pressure activated valve and so on. Nitrogen bottle installation and the cylinder installation is basically the same, copper tubes expanded mouths flaring Suo Mu connector parts connection. Copper tube should be installed horizontal even vertical fixed support spacing and the parallel conduit clip spacing should not exceed 0.6m, pressure tightness test shall be performed after installation, test pressure shall not be less than the nitrogen bottle storage in pressure regulator 5 minutes, not qualified.

3.4.5 pressure switch installation: the pressure switch's role is to work in the system under pressure feedback signals, usually in the collecting pipe tapered at the end of the installation, or cones on the fitting connector wire installation.

3.4.6 nozzle nozzle towards open specifications and open holes must meet the design requirements, special wrench should be used during installation.

3.5 system commissioning and function of acceptance:

3.5.1 gas fire extinguishing system is installed according to the total number of protected area (less than 10 by 10 meter) simulated Jet test on 10%. Jet region should prepare protective measures. Test results shall meet the design requirements.

3.5.2 halon fire extinguishing gas spray should be simulated using nitrogen, nitrogen cylinder charging pressure shall not be less than the pharmacy cylinder storage pressure, structures, models, specifications and container should be the same number of 20% pharmacy bottle, and shall not be less than l.

3.5.3 carbon dioxide fire extinguishing system using carbon dioxide to simulate the Jet tests, test the number of containers should be used for the protective District 10% of the total actual use of chemical storage containers, and shall not be less than 1.

4 quality criteria

4.1 project:

System pressure test results must comply with the design requirements. Completion must be done before the purge.

4.2 Basic project:

System pipe length and direction, rainfall showerheads and nozzles must conform to the design requirements.

4.3 allowable deviation:

Sprinkler branch pipe fixation distance between nozzle pipe length is not more than 500mm.

5 finished product protection

Installed gas cylinders room should have professional management to prevent sprayed errors lead to false positives.

6 quality problems to be noticed

6.1 pipe galvanized pipe-cone bit bad because pipe wrench old, caused by tight.

6.2 cylinder transport damage the coating. Due to lack of protection measures.

7 quality standard

6-3 "indoor sprinkler system installation standards."

Installation technology for indoor heating pipeline

1 scope

The standard is suitable for civil and industrial buildings hot water temperature does not exceed 150 ° c heating piping installation works.

2 construction preparation

2.1 materials requirements:

2.1.1 tubes: carbon steel pipe, seamless steel pipe. Pipes shall not be bent and rusted, no fin, double skin and rugged.

2.1.2 tubing: no offset clasp, square buckle, buckle, breaking point and inaccuracies.

2.1.3 valves: casting rules, without burrs, cracks, flexible tight thread damage-free, straight and correct, strength meets the requirements, handle without damage. Factory certification, installation should be in accordance with the relevant provisions of the strength and tightness test.

2.1.4 other materials: steel, round steel, Guan Kazi, bolts, nuts, oils, linen, cushions, electric welding rod. Selection should comply with the design requirements.

2.2 the main tools:

2.2.1 equipment: wheel saws, pipe threader, bench drill, electric welding machines, such as simmering bending.

2.2.2 tools: pressure, bench vise, welding tools, pipe wrench, hammer, hand saw, wrench, etc.

2.2.3 other: steel tape measure, level, wire pendant, chalk, small lines.

2.3 operating conditions

2.3.1 dry tube installed: located inside the gutter pipes, gutter debris should be cleaned up elevator has been installed, without gaigou the cover before installation. Located under the floor and the top of the pipe should be Cap structure or structures installed after the installation of more than one layer.

2.3.2 pipe installation must be carried out after determining accurate ground elevation.

2.3.3 pipe installation must be carried out after plastering the walls.

3 operational processes

3.1 process:

Installation preparation – operations → card installation standpipe installation → → → dry tube installed pipe installation →

Test → washing → anti-corrosion → heat → debug

3.2 installation preparation:

3.2.1 earnestly familiarity with drawing paper, with the construction progress, reserve tank and installation of embedded parts of the cave.

3.2.2 design drawings to draw the lines of position, pipe diameter and variable diameter, provision, direction, location sketches such as card, including pipe start point, and at the end turn, nodes. Provision, coordinates, and so on.

3.3 pipe installation:

3.3.1 according to the construction plan, prefabricated pipe machining, including: broken pipe, threading, parts, straightening, check size, grouped by loop number neatly.

3.3.2 Installing the card, spacing in accordance with design requirements or installation. Elevator installation, the sticks according to the slope, hanging steel on a stick order, rings on a spacing position in pipe and bolt screw nut on the lift tube to wear, fixed the tubes. Pipe on the mounting bracket, put the tube in place on the Bay, u-shaped section pipes packed card, then install the second tube, pipe sections after this, good fastening bolts.

3.3.3 pipe installation should begin at entrance or branch point, tubing before you check the lumen and clean. In silk head at coated good lead oil wrapped around good Ma, a people in end helped flat pipeline, a people in interface at put tube relative fixed alignment silk buckle, slowly turned into buckle, with a put tube clamp bite Qian section fittings, with another a put tube clamp turned tube to elastic moderate, alignment adjustable straight Shi of mark, requirements silk buckle exposed 2~3 buckle, and clear off Ma head according to this method loaded finished weizhi (pipeline through expansion joints or had ditch at, must first dressed steel casing).

3.3.4 when making a horn bent, two of around 75 ° elbow should be simmering, sawed a Groove at the joins, sawed the head duck lips, a good fight after spot, after leveling, alignment, looking for straight, then weld. Horn bent the calibre of the junction must equal the run size, and the bending radius should be about 2.5 times the diameter. Tube wall mounted tap as shown in Figure 1-11.

3.3.5 tap valve tap points should not be too far away. If the tap is the lowest point of the system, you must prefix in the tap valve with drain plug. Gas tank inlet and outlet should be open about tank in lower high 1/3. Get connected with a pipeline installed after straightening. Let in fresh air pipe should be stable, such as unstable can be installed two clips, set when the gas tank is located in the system, should be loaded up, elevator.

3.3.6 used welding pipe, first put pipe selected good adjustable straight, cleanup good tube bore, will tube shipped to installation locations, installation program from first section began; put tube in place find are, alignment tube mouth makes reserved mouth direction accurate, find straight Hou with gas welding spot fixed (tube diameter ≤ 50mm following welding 2 points, tube diameter ≥ 70mm above spot 3 points), then Shi welding, welding finished Hou should guarantee pipeline integrity.

3.3.7 have expansion joints should be in the prefabrication according to the specification to pretension and make records. Fixed by location, connected with a pipe. Bellows expansion joints should be installed according to the requirements-driven scaffolds and fixation. And installation of valves, gas cans and other ancillary equipment.

3.3.8 the piping is installed, check the coordinates, elevation, reserved outlet position and pipeline diameter is correct, and then look for straight, level proof check slopes, after passing the adjustment, then adjust the elevator bolts u-card, making it tight moderately, laying, welding firm card of the last stop plate.

3.3.9 straighten or installing pipes structure at the bushing, ring gaskets pipe entrance, reserved outlet pipe should be temporary blocked.

3.4 vertical installation:

3.4.1 reserved hole locations on each floor if vertical, hanging, pick eyes, kind of clamp. Prefabricated piping in numerical order delivered to the installation site.

3.4.2 installation before removing the valve cover and put steel casing to the tube, according to numbers from the first section to begin the installation. Applying lead round Mahjong riser at the interface of oil turned into ring, a bit pipe pipe clamp, screwed pipe pipe clamp, screwed to the elasticity moderate, when aimed at straightening the marking requirements, threads exposed 2~3 buckle provision until the fair and pure hemp.

Each provision 3.4.3 check riser height, direction, half bent, are accurate and fair. Previously planted pipe clamp release, put the tube into the tightening bolts, hangers, and looking for a vertical line starting from the first tube, strengthening of the steel casing, and finally the ring gaskets holes, provision must be a good temporary plug.

3.5 branch pipe installation:

3.5.1 Check radiator installation location and riser provision was accurate. Fork bending tube and lamp sizes. (Radiator Centre away from the wall and the standpipe reserve Center differential from the wall).

3.5.2 distribution pipes, according to the volume of the branch pipe size, minus the amount of light fork bent and broken pipes, wires, and simmering light fork-bending and straightening. Lead oil fork bending both ends around the lamp, oil-packed, connected radiators, clean linen.

3.5.3 a concealed or half-concealed radiators (as described in the sixth chapter) light fork bending must be commensurate with the furnace slot corner, good appearance.

3.5.4 the use of tools, horizontal ruler, line proof pipe from the wall parallel to the slope and dimensions, and review the risers and radiators without moving. According to the design or system pressure testing and washing under pressure, after passing the acceptance formalities, net and water discharge.

3.5.5 stand tube diameter, should not use cast iron bushing, welding or reducer coupling should be used.

3.6 heating:

3.6.1 first contact a good heat source, pass the warm range according to the heating area, development of Tong warming personnel Division, check whether the heating system drain valve closed, dry, State, control of the valve is turned on.

3.6.2 to system filled with softened water, began to turn on the highest point of the system to test the waters first valve, arrange for someone to look after. Slowly open the system of backwater dry pipe valve, see you in the highest point of the blow down valve closes after water out valve. Then open the water supply valves total, high blow down valve to repeatedly open a few times, so that cold air drain on the system so far.

3.6.3 running half an hour later, started checking all systems, in the event of no heat should first identify the cause, flush when you want, close the valve outlet supply and return water, and successively switching valve water supply and return water rinse, rinse again in accordance with the above mentioned programs run warm, until normal.

3.6.4 pass warm in winter, temporary heating measures must be taken, can only be + 5 ° c above room temperature. In case of uneven heat, adjust the tap pipe, tube, valve, making it after achieving a balance, an official inspection and acceptance, and the acceptance formalities.

4 quality criteria

4.1 project:

4.1.1 test results for plumbing and heating the water pressure of the system as a whole, must conform to the design and construction specifications.

Inspection method: check the system or partition (above) records.

4.1.2 pipe fixation position and must comply with the design requirements and construction specifications.

Inspection method: observation and checked against the design drawings.

4.1.3 installation location must comply with the design requirements for the expansion, and should be in accordance with the relevant provisions of the pretension.

Inspection method: checked against the design drawings and records check the pretension.

4.1.4 the lip of the pipe welds and bent parts non-welded pipe, interface welds from the bending points, branch, the hanger side must be greater than 50mm.

Inspection method: observation and standard checks.

4.1.5 strainer filter materials, specifications and dressing method must conform to the design and construction specifications.

Inspection method: check the dissolution.

4.1.6 completion of heating supply system, you must check the washing quality.

Inspection method: check the purge records.

4.2 Basic project

4.2.1 the slope of the pipe shall conform to the design requirements.

Inspection method: level (level), cable and standard checks or check the measurements recorded.

4.2.2 carbon steel pipe thread connection thread should be clean, neat, no broken or missing wire firmly attached, pipe thread roots exposed 2~3 buckles, interface is not exposed in Yau Ma Tei and other defects.

Inspection method: observation or check the dissolution.

4.2.3 welding welding of carbon steel pipe straightness, reinforcement of weld surfaces in accordance with design specifications, burn, crack-free weld surface and apparent nodule, inclusions and holes and other defects, soldering wave uniform.

Inspection method: observation or using a welding inspection-scale inspection.

4.2.4 valve installation type, specification compressive strength and tightness test results in accordance with the design and construction specifications. Installation location, import and export right directions, securely close, opening and close flexibly, ease of use, clean the surface.

Inspection method: hand checking and inspection of factory certification.

4.2.5 pipe support (hanging up) and socket (Tun) installation shall conform to the following requirements: constructed correctly, laying laying strong, neat, frame and pipe in close contact.

Inspection method: observation and hand checks.

4.2.6 installed in the walls and floor of the casing should satisfy the following requirements: the top of the casing in the floor above the ground not less than 20mm. Bottom flush with the ceiling surface, both ends of the wall sleeve and flat finishes. Fixation, flush nozzle, girth evenly.

Inspection method: observation and standard checks.

4.2.7 pipes, boxes and metal stent coating shall meet the following requirements: paint type and brushing a few times to meet design requirements, good, no peeling, blistering and missing coating, coating thickness uniformity, consistent color, flow and pollution-free.

Inspection method: Visual check.

4.3 allowable deviation:

Indoor heating pipe installation tolerances and inspection methods are given in table 1-12.

Indoor heating pipe installation tolerances and inspection methods (mm) table 1-12

Allowed deviation of the project method

Horizontal in horizontal pipe 1M pipe diameters less than or equal to 100

Pipe diameter larger than 100 0.5

1

Horizontal ruler, Straightedge

1 direction bending (mm) total length

(25m) diameter less than or equal to 100

Pipe diameter greater than 100 less than 13

Not more than 25 cable and check

The ellipticity

Dmax-Dmin diameter is less than or equal to 100

2 pipe diameter Dmax greater than 100 8/100 with a caliper and ruler

Tube diameter is less than or equal to 100

Pipe diameter larger than 100 4

5

5 finished product protection

5.1 installed pipe shall not be used as hanging load and supporting, nor does the pedal stepped on.

5.2 when transporting material, machine and welding, with specific protective measures shall not have walls and floors get dirty, damaged.

5.3 pipe after installation, valve handwheel should be removed, keep, upon the completion of a unified install.

6 quality problems to be noticed

6.1 pipe slope is not uniform. Is caused by installing pipes and open interface does not straighten or elevator tension is inconsistent, riser clamp is not tightened, fork bending the light rough, and tap pipeline prefabrication, did not join the investigation.

6.2 pipe is not perpendicular, largely due to the size allowed, push, Lali pipe caused. Tiered risers and not from the wall is inconsistent, mainly picking holes, do not wait and garrison.

6.3 lamp fork bent and inconsistent, mainly due to a simmering bending of different size, angle, long and short causes.

6.4 casing at the bottom on both sides of the wall or precast exposed, because the casing caused by too long no soldering iron or steel casing.

6.5 Ma head cleaning dirty, caused because the operator is not clear in time.

6.6 pressure and General warming, pipe is blocked. Primarily installation, provision did not install temporary plugging into the debris caused.

Quality of 7 records

7.1 there should be material equipment factory certificate.

7.2 entering inspection records of materials and equipment.

7.3 radiator pressure test set of records.

7.4 heating pipe of inspection records.

7.5 heating pipe inspection records.

7.6 heating pipeline compensator pre-stretching records.

7.7 supporting pipes, radiators for heating inspection records.

7.8 single pressure test of heating pipe records.

7.9 hidden heating pipeline inspection records.

7.10 floor heating system pressure test records.

7.11 wash the heating system records.

7.12 try adjusting the heating system records.

Granitic plaster wall construction technology

1 scope

This technology is applicable to general industry and civil architecture wall granitic plaster, water brushes bean stone construction.

2 construction preparation

2.1 materials and equipment:

2.1.1 cement: No. 325, cement or Portland cement and above, same color, should be used with the batch of products.

2.1.2 sand: sand. 5mm before using the sieve of aperture.

2.1.3 gravel: solid particles shall not contain harmful substances such as clay and other organic matter. Gravel specification, the specification requirements, grading should comply with the design requirements, eight per cent to 6mm, small eight per cent to 4mm. Wash before use, according to specifications, colours and Marshall dry, stacked, sheet cover for later use. Requirements consistent with gravel color, should be delivered.

2.1.4 the small stone: size 5~8mm is appropriate, clay is less than 1%, with the first two times we have sieve, rinse with water and set aside.

2.1.5 lime cream: one month before using lime 3mm sieve, pour into lime paste, available in gypsum mortar should not contain particles and other impurities that are not cured.

2.1.6 lime: using water to stew through the week before their full ripening, when used shall not contain curing particles at the end.

2.1.7 other materials: 107 gum, YJ302 interface treatment agent and fly ash.

2.1.8 pigments: good alkali resistance and light resistance of mineral pigments.

2.1.9 equipment should be equipped with hand pump 2~3 (according to the amount of brushed stone and construction staff size), wood float, large bar, mini bar, feet, feet, steel trowel, son of pressure, paste pots, large (small) bucket, soft (or hard)-hair brush, chopsticks, and so on. Plastering tools such as car, Gray Ash bucket, small barrels, iron and so on.

2.2 operating conditions:

2.2.1 structure project has been accepted.

Construction requirements 2.2.2 ready to double exclusive shelf or basket, bridge-type frame. The pole away from the wall 20cm shelf to guarantee operation. Feet best not left hand-eye on the wall to prevent secondary repair, resulting in wall of flowers.

2.2.3 reserved holes and disposed of through embedded pipe wall. Waterproof finish a wall cavity and tricking water test without leakage, check. Install Fixed door and window frames, and gap plugging tight with the 1:3 cement mortar.

2.2.4 clean walls, walls of raised concrete should tick. Recessed 1:3 cement mortar layer fill.

2.2.5 granitic plaster should be done before construction of large area model to determine the mix proportion and construction technology, obliges the person unified ingredients, and mix control.

3 operational processes

3.1 process:

Caulking around doors and Windows (precast concrete exterior wall cavity Board slot) → wall cleaning →

Watering moist walls (wall cavity slot tricking water test) → hanging vertically, set the rules, plaster cakes, Chong tendons →

Tiered bottom mortar → elastic → line → cell adhesion, drop gravel pulp

Repeated massage flushing shoot compaction → → iron trowel calendering, washed with hand pump wash stone →

Size pot bottom riffle in rinse, water-cement pastes caulking

3.2 base for concrete external wall:

3.2.1 primary processing: cutting hair on the surface of the concrete plate surface net meringue tick, dust brush off with a wire brush, rinse, water moist; 10% caustic soda water to the concrete surface with oil and dirt brush, rinse and dry, spray or dump 1:1 fine 20% 107 glue a cement mortar mixed with water consumption. End gel Hou watering conservation, until mortar and concrete Board stick prison (with hand broke mortar not off), party can for playing end of; or used YJ302 concrete interface processing agent on grass-roots for processing, its operation method has two species: first species, in cleaning clean of concrete matrix Shang, brushing "processing agent ° a, immediately follow with wipe cement mortar, requirements wipe gray Shi processing agent cannot dry. Second, just after finishing the treatment agent sprinkle a layer of sand particle size 2~3mm to increase the roughness of the concrete surface, until dry and hard of a base.

3.2.2 hanging vertically. Sets of rules: If the multi-storey buildings, using special cable hanging down from the top of the vertical, and after the guy wire, wire vertical requirements at Tai Kok, doors, plastering holes on both sides of layered cake. If the top should point, jambs and theodolite used in vertical vertical line and line layered plaster cake to find rules, horizontal direction to achieve the smooth consistency.

3.2.3 the underlying mortar: elevation of above the ash cake gluten-filled, brush 10% 107 adhesive mud mixed with water, immediately followed by layers and underlying mortar, mixing ratio can be chosen at the end of 1:l:6 at room temperature (mixing mortar) or 1:0.5:0.5:6 (fly-ash mortar mix), hit bottom with tie bar anyway, scrape and rub wood trowel. After the final setting of water conservation.

3.2.4-line grid, cell adhesion, water: according to the drawing size line, sticky, cells in epithelia to be flat, horizontal even vertical lines circles counterparts. And according to the specifications of part set drop.

3.2.5 wipe cement gravel pulp surface layer: scraping a within mixed 10% of 107 glue mud, follow with wipe 1:0.5:3 (cement: lime cream: small eight PCT) gravel pulp, bottom-up points two again and points grid article wipe flat, and timely with small bar check its flat degrees (wipe gravel layer to above points grid article LMM), then will gravel laminated flat, and pressure real.

3.2.6 trimmed and painted: Pat down will have good gravel surface compaction, will it cement slurry extrusion water brush dipped in water to grout brush, compacted again clear, repeated 3~4 times until the surface starts to gel, na no trace water brushes off the stone tablets for the degree. A brush with brush dipped in water to the cement slurry, one followed by the top down using hand pressure pump sprayer spray rinse, spray distance wall 10~20cm, cement wash out after the gravel surface, and finally a smaller water rinse the gravel surface. After wall moisture control, grid, and timely with cement plaster caulking.

3.2.7 operation program: soft face doors and Windows, Bay Windows, balconies, rain cover and other parts to brush the stone should be small and big, to ensure that the surfaces are clean and beautiful. Brushes Shi Yang corner, shower outside wash, and finally a smaller water rinse. Soft face cornices, window sill, balcony, rain cover and other surfaces should be done by the end of drip, width at top 7mm, width under 10MM, dark 10MM, not less than 30mm from the skin. Large stone wall brush one day to finish, before continued scouring a new live. Brushed stone to do the night before should be soaked with water, and after for spraying brush when wet mud is easy to clean, prevent pollution, wall. Wrong should be left on the grid slot.

3.3 base for brick walls:

3.3.1 base treatment: the plaster dust and dirt on the front grass-roots clean up, plug for hand-eye coordination, water wetter.

3.3.2 hanging vertically, set the rules: from the top layer with a special line, stretched wire hanging straight, then layering plaster cakes, angle of yin and Yang, on either side of the window, column, Duo, etc should be hanging straight, stretched wire, good ash cakes and filled bars.

3.3.3 the underlying mortar: at room temperature, mix it with 1:0.5:4 mortar or 1:0.3:0.2:4 mixed with fly ash mortar base, plastering gluten-filled to control the thickness of the plaster should be layered and loaded until the erase bar. Requested heading back again when ash. Mortars into their bond in the mortar joints, leveling the surface rubbing hair, water conservation after the final set.

3.3.4 playing line, divided into cells, cell adhesion, water: according to the drawing size line grid, cell adhesion, and cells to horizontal even vertical circle, drop of paste should be according to the specifications and drawings parts, and should be straight.

3.3.5 gravel-cement paste: scraping together of 10% 107 glue a cement slurry mixed with water consumption, and gravel 1:0.5:3 cement slurry, should wipe from bottom to top to the thickness of the grid, and feet with leveling, concave handle compacted after leveling, pressed, shooting up to the gravel on the face.

3.3.6 dressing, and spray brush: will has wipe good of gravel surface layer took flat pressure real, will its water mud extrusion, water brush dipped water will water mud brush to, again pressure real clear, repeatedly for 3~4 again, stay surface layer began early gel, refers to NA no marks, with brush brush not off gravel for degrees, a people with brush dipped water brush to cement pulp, a people follow with with hand pressure pump nozzle by Shang down order spray water scrub, nozzle General from wall 10~20cm, put surface water mud flush clean show gravel, last with small Kettle watering will gravel rushed NET, After wall moisture control, grid, and timely with cement plaster caulking.

3.3.7 operation program: soft face doors and Windows, window sills, balconies, rain cover and other parts brushes Shi Xian small and big, to ensure that the walls are clean and beautiful. Brushes Shi Yang corner applicators should wash from the outside, and finally a smaller water rinse. Cornice, window sill, soft face, balconies, rain hood bottom should do throat, wide on 7mm, down width 10MM, dark 10MM, not less than 30mm from the skin. Large stone wall brush finish a day, such as the need to continue construction, washing should be done the day before before the new live paint stone wet with water, for when spray is easy to clean after wet mud, pollution prevention wall.

3.4 winter rain during construction:

3.4.1 construction in winter to prevent the ash layer from the cold, should not be mixed with lime in the mortar paste, in order to ensure the workability of the mortar, the same volume of fly ash can be used instead. Such as playing ash mixing ratio 1:0.5:4 can be used (cement fly ash: sand) 1:3 cement mortar or cement gravel mixture mixing ratio 1:0 can be used ... 5:3 (cement fly ash: gravel) or to 1:2 gravel-cement slurry used.

3.4.2 plastering mortar using hot water mixing and take measures, when applied mortar temperature should not be below + 5 c.

3.4.3 plastering layer's early hardening without freezing.

3.4.4 to enter construction before winter, should be mixed with mortar admixture reduces freezing, plus calcium chloride or sodium chloride, the dosage should be adjusted according to the atmospheric temperature to 7:30, mortar, additive dosage.

3.4.5 of freezing method masonry walls, exterior plaster should be completely thawed before wiping, shall not be washed with hot water freeze walls with hot water or elimination of wall of frost.

3.4.6 winter stage construction.

3.4.7 construction taking the rain rain protection measures, has just completed a brushed stone walls such as the case when heavy rains washed, should pay attention to block to prevent damage.

4 quality criteria

4.1 project:

4.1.1 the variety and quality of the materials used must comply with the design requirements.

4.1.2 the plaster layer and must bond between plaster layer and the substrate, no delamination, hollowing and cracks and other defects.

4.2 Basic project:

4.2.1 surface: the stone tablets of clear, uniform distribution, close formation, consistent color, no trace of grain and Cha.

Section 4.2.2 (seam): uniform width and depth, (seam) is flat and smooth, Leng corners neatly, horizontal even vertical, smooth.

4.2.3 drop line (slot): flow direction is correct, drip line straight, throat width and depth is not less than 10MM, neat and consistent.

4.3 allowable deviation, as shown in table 9-5.

Granitic plaster wall surface tolerance table 9-5

Project tolerance (mm) method

1 façade vertical 5 2m supporting plate check

2 smooth 3 2m m on foot and wedged feeler Gage check

Angular vertical 4 3 Yin and Yang with 2m supporting plate check

4 corner square 3 Yin and Yang with 2cm feet and wedged feeler Gage check

5 foot Dado head straight 3 5M line and check

6 minutes straight 3 5M line and standard inspections

7 full height vertical single-layer, multi-layer h ≤ 20 ‰ and transit checks

Full height vertical top h ≤ 30 ‰ and transit checks

5 finished product protection

5.1 stuck to the door and window frames and brick mortar should be cleared in a timely manner. Aluminum alloy doors and Windows should be promptly stick protective film to prevent contamination.

5.2 when spray plastic mulch well let's give wall to prevent contamination. Especially windy day more carefully protected and covered.

5.3 building after the import and export of granitic plaster well let's give, should be nailed to wood protection angle, preventing the broken edges.

5.4 remove shelves and Interior and exterior cleanup, not to damage the glazing and contamination and water brushing stone walls.

5.5 painters brush oil tank should be take care not to over contaminated walls, brush for have stone sills and convex lines, should be protected, do not pedal step on the damage.

6 quality problems to be noticed

6.1 gray layer bond not prison, and empty drum: reasons is grass-roots not watering wet; grass-roots didn't cleanup or cleanup not clean; each layer gray with have too tight or once wipe gray too thick; playing end of Hou didn't watering conservation; prefabricated concrete outside wall board too smooth, and grass-roots didn't "hair of" processing; board surface crisp skin not tick chisel clean; points grid article sides empty drum is because up article Shi will gray layer pulled crack. Should pay attention to the grass-roots level of cleaning, watering each ash plastering layer thickness is not too thick; the end of grey 24h attention to water conservation. Precast concrete wall panels must be clear and crisp the skin, and "texture".

6.2 the wall dirty, color inconsistencies: brush to erase stone walls not compacted, pit water in mud not rinse rinse or final use; a stock of raw materials is not enough; mixture ratio of cement or gravel, different colors or no gradation is not consistent. Erase operation should be repeated when kneading, where its uneven, and finally washed clean with water. Request brush mix has special master of stone, cement, gravel should be prepared.

6.3 crack, crack: due to uneven surface depth, scouring thin junction because of different weight fall when cracked, dry cracks enlarge live a few times is not enough, ash layer compacting is also easy to form lines or cracks; gravel with unripened grain, volume expansion of water surface burst. Required hits bottom ash flat, surface construction must be in accordance with standard side brush the water pressure, until the surface compaction and light so far.

6.4 rot: brushing stone and apron and waist line and other contact surface is not clean, there is debris on the surface, to be formed after debris clean roots due to bottom construction, live a few times is not enough, ash layers do not compact, formed after the flush dregs or local gravel is not dense. Brushing stone and apron and waist contacts clean; brushed stone root construction should be carefully and seriously.

6.5 negative pollution angle brush, stone, stone wall brush, opacity, not clear: internal corner do both sides brushed stone in two, then brush side brush earlier side of pollution. Entire wall pieces, done after a, scrub pollution have been doing a piece of both sides of the internal corner to find rules, once made and painted. On the large stone wall brush, to prevent pollution, in front of the stone after scouring brush, brush stone will be ready first flush clean with water and moist, then scour new brushes Shi, new living is completed, then rinse with clean water ready to brush the stone, prevent pollution caused by washing dirty, muddy.

6.6 brushes Shi Cha confusion, the overall effect is poor: brushes Shi cha in the child should remain in the compartment, or behind the waterspout, or decorations at the edge of independence, must not remain in the block.

7 quality records

This standard shall meet the following quality records:

7.1 cement factory prove and test reports.

7.2 certificates of quality of sand and mud content report.

7.3 quality certificates such as gravel, little pea stone.

7.4 certificate of lime, fly-ash factory.

7.5 other materials: 107 gum, factory certificate of treatment and how to use the YJ302 interface.

7.6 quality inspection and assessment of records.

8 water brush bean stone construction technology

Its practices and granitic plaster the same gravel mixture into small stone mortar plastering, and generally mix 1:0.5:3 (at room temperature) (cement: lime cream: small stones), construction of winter construction using 1:2 mix.