Tuesday, January 10, 2017

Paper gypsum polystyrene composite panels within the exterior wall insulation wall construction technology

Paper gypsum polystyrene composite panels within the exterior wall insulation wall construction
1 scope
The technology standard is mainly suitable for residential buildings, and also can be used in the nursery, the use function such as medical close to residential building of civil construction. Exterior wall body structure, generally for clay brick and reinforced concrete wall, the inside of the plaster polystyrene composite board paper. Does not apply to such as kitchen, toilet humidity larger room.
2 construction preparation
2.1 material and main equipments:
Article 2.1.1 plaster polystyrene composite paper board:
2.1.1.1 size:
2500 ~ 3000 mm long
900 mm and 1200 mm wide
42, 52 mm thick (12 m thick gypsum board ten polystyrene)
2.1.1.2 polyphenyl board: self-extinguishing, 20 kg/m3 density, thermal conductivity < 0.04 W/m K, oxygen index > 30%, 30, 35 and 40 mm thickness.
2.1.2 bonded materials:
Ⅱ adhesives: used in polystyrene, and the bonding of wall;
Ⅲ adhesives: used for bonding of gypsum board and metope.
YJ: - Ⅲ adhesives used for paste wood skirting board;
SG - 792 adhesive;
107 glue.
2.1.3 building gypsum powder: should comply with the standard level 3 above.
2.1.4 WKF putty: used for plate processing. The following properties:
> 3.0 MPa compressive strength, flexural strength > 1.5 MPa, fineness of < 1% (more than 0.2 mm sieve), the initial setting time > 0.5 h.
2.1.5 50 mm wide in the alkali glass fiber and glass fiber grid cloth: used for plate processing. > 80 g/m2, 8 orders/in
Fracture strength of 25 x 100 mm strip warp > 300 n
Zonal > 150 n
2.1.6 cement polystyrene waterproof insulation skirting board (hereinafter referred to as the skirting board) :
600 mm long, 100 (120) mm wide + Dmm (D for building, ground floor and cushion thickness, size according to the engineering design), 55 mm thick, or according to the engineering design.
2.1.7 other materials: cement, sand, gasoline and industrial varnish, etc.
2.1.8 tools: raw material, operation, plate, rubber hammer, Yang Angle small hairbrush, 2 m line board, paper knife, hacksaw blade, wood float, plane, high stool, brush, broom, etc.
2.2 operation conditions:
2.2.1 structure acceptance, already had finished roofing waterproof layer, metope pop-up + 50 cm elevation lines.
2.2.2 partition inside and outside doors Windows, window sill board installed, windowsill and wet plaster walls, roof and other operations are completed.
2.2.3 outside eaves rendering should be completed before within the exterior wall insulation construction, insulation wall should have corresponding protection measures.
2.2.4 plumbing and decoration project of pipe clamp, furnace hook up and curtain rod handle should be set aside position or buried over; Electrical engineering pipeline, junction box, etc must be buried, and shall complete the wear of dark line with line of work.
2.2.5 review of door window vertically and its founder the gap width of the medial plasterboard of face of the paste.
2.2.6 operation place environment temperature is not lower than 5 ℃.
3 the construction technology
3.1 paper gypsum polystyrene board exterior wall insulation practice basic structure are shown in table 9-27.
Basic structure table 9-27

Heat preservation practices within
Air thermal insulation layer + surface

Or reinforced concrete wall
Ordinary clay brick wall

(1)
20 mm thick

(2)

Plasterboard of face of polystyrene +
30
35 mm to 12 mm
40
(3) (4)

3.2 the process flow
The structure wall clean up - step play line - mark tube plate, repair and card, such as furnace hook and built-in position - >

Metope screed and junction box, installation of pipe clamp, and built-in to paste the skirting board, composite board installation

Joints and Angle of Yin and Yang, board face oil
3.3 points
3.3.1 structure wall cleaning: every bulge metope of 20 mm mortar, concrete block must remove, sweep and metope.
3.3.2 rainfall distribution on 10-12 step play line: should popup screed line step according to the following principles:
3.3.2.1 play vertical reinforcement line: doors and Windows on both sides of the hole and its knife edge each play a vertical bar line (knife length should be not less than 200 mm), and then in turn to plate 900 mm (1200 m) of spacing to step on both sides play vertical muscle line, and was living in shade.
3.3.2.2 shells transverse reinforcement line: along the floor, ceiling, kicking, fluently and it was easy, humanly scaled up and down, all pop-up transverse reinforcement wire.
3.3.3 metope screed: metope screed method is as follows:
3.3.3.1 position in screed, use wire brush to brush the clean surface of not less than 60 mm wide and water wetting, brush a 107 plastic cement slurry.
3.3.3.2 check metope smooth, vertical, find rules stick cake screed, and need to be set up to 200 mm x 200 mm grey cake.
3.3.3.3 screed material is 1:3 cement mortar, reinforcement of 60 mm wide, thickness to ensure that the thickness of air layer (about 20 mm) shall prevail.
3.3.4 junction box, pipe clamp, and built-in Ann: when installing electrical junction box, junction box screed higher surface shall not be greater than the thickness of the clad plate, and be strong.
3.3.5 paste skirting board.
3.3.5.1 metope pop-up skirting board flowing line.
3.3.5.2 in skirting board inside, mouth up and down by 200 mm to 300 mm spacing layout Ⅱ type adhesive contact, at the same time in the skirting board floor and its adjacent has pasted on the wall skirting board side with adhesive glue.
3.3.5.3 skirting board of press line paste, paste, paste with a rubber mallet percussion make skirting board crowded meet real seam, and extrusion of adhesive glue to clean up at any time.
Shall be provided to the skirting board 3.3.5.4 paste flowing flat, vertical panel.
3.3.6 composite board installation:
3.3.6.1 cut out of the Windows and doors hole knife and internal Angle in wide width less than the whole plate plate.
3.3.6.2 will be the location of the junction box, pipe clamp, and built-in accurately to the panel, and open the mouth of the cave.
3.3.6.3 composite panels on the 250 ~ 300 mm spacing layout Ⅱ type adhesive contact (below the ceiling 500 mm spacing reduced) within the scope of the putting, but plate meet with screed bonding surface and side seam must be blown with adhesive.
3.3.6.4 wipe the adhesive, plate set up, installed in place. When installing lateral pushing and pushing up and down, and always use help find the vertical line board, using the rule to look flat, higher part of the beaten with rubber, extruded rubber to clear in time.
3.3.7 joints, Yin and Yang Angle of treatment:
Seams 3.3.7.1 gypsum board surface must be groove into the groove. After cleaning the brush a concentration of 50% 107 glue solution.
3.3.7.2 at the joint groove about LMM thick WKF putty scraping, and then paste the glass fiber tape, scrape to evenness compaction.
3.3.7.3 when putty solidifies and while they are still in the wet state, again a WKF putty, glass fiber with embedded in putty, fill leveling and joints.
3.3.7.4 little round Angle of Yin and Yang to make it. Yin Angle paste layer, Yang Angle paste two layers of glass fiber cloth, on both sides of the Angle turned a 100 mm, paste method with the plate seam processing, surface scrape to evenness with WKF putty.
3.3.8 door and window handle, door window profiles and snappy, a layer with Ⅲ adhesives gypsum board, gypsum board should be embedded within the door window, and appropriate small bedding face, surface pressure, vertical should stick founder.
3.3.9 panel operating oil: stay plate seam be bored with child after all dry, oil can be abrasive paper is held, the preparation of the oil ratio for: industrial varnishes: gasoline = 1:5.
3.3.10 adhesive preparation: pour into a container with a glue solution, stirring slowly proportional to the mixed with gypsum powder, stir into paste. A dispensing adhesive volume shoulds not be too much, along with it.
4 quality standards
4.1 ensure projects:
4.4.1 insulation structure should comply with the design requirements. Air layer thickness shall not be less than 20 mm.
Inspection method: to observe the examination.
4.1.2 metope between the adhesive layer, thermal insulation layer, structure must be strong, no loose phenomenon.
The method of examination: tapping and watching.
4.1.3 the quality raw material and adhesive used must be qualified. Composite board can't be affected with damp be affected with damp, moldy, pollution, deformation, empty drum, and falls off phenomenon.
Inspection method: to observe the check, check product certificate.
4.2 the basic items:
Plate seam glass fiber and Yin and Yang Angle of glass fiber, glass fiber cloth should be compact, without buckling, become warped edge, the leakage phenomenon. Be bored with child should be embedded, leveling. Plate seam, board face, Yin and Yang Angle should not have cracks.
Inspection method: to observe the examination.
4.3 allowable deviation projects:
Composite insulation wall installation deviation should be allowed to meet the provisions of the table 9-28.
Composite insulation wall installation allowable deviation table 9-28
Will project allow deviation (mm) check method
1 surface is flat and level 4 in 2 m by feet and wedge feeler check
2 facade 5 in 2 m vertical line board check
Three Yin and Yang Angle vertical 4 in 2 m line board check
4 Yang Angle founder 4 meters and wedge feeler check with 200 mm
5 1.5 with straightedge and wedge feeler check seam height difference

5 finished product protection
5.1 civil engineering, water and electricity should closely cooperate with each job, reasonable arrangement of working procedure, it is forbidden to reverse process operation.
5.2 near the wall insulation shall not be for welding and gas welding operation, the weight must not be used as collision, crowded on metope.
5.3 construction and equipment to test the waters with water, and in the rainy season, must take effective measures to prevent the insulation wall be affected with damp be affected with damp and pollution.
6 should pay attention to quality problems
6.1 composite insulation board during transportation, loading and unloading, and storage should be light to carry light, should not be piled up at every crib number more than 10 pieces. Pile up the ground should be mat ((should be flat, positive, wood square is 500 mm from the plate end. Should be waterproof, moisture-proof measures to prevent damaged composite insulation board and be affected with damp be affected with damp.
6.2 crack common faults are most likely to occur. Plasterboard of face so bo mouth joints and Angle of Yin and Yang, strictly require the use of WKF juncture putty, glass fiber with (cloth) is stickup and firm, to prevent the cracks.
6.3 glue is the key to this process. Used in accordance with the regulations to meet the needs of the different parts of adhesive, adhesive properly stored and gypsum powder, prevent deterioration and be affected with damp be affected with damp.
7 quality records
This technology standard should have the following quality records:
7.1 paper gypsum eps composite insulation board quality certificate.
7.2 adhesive quality certificate.
7.3 within the exterior wall insulation wall component project quality inspection records.

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