Marble, polished granite, precast terrazzo facing construction
1 scope
The technology standard is applicable to civil and public buildings indoor metope, cylinder and door window set of marble, polished granite, precast terrazzo veneer decoration engineering, etc.
2 construction preparation
2.1 material requirements:
2.1.1 cement: ordinary Portland cement, 325. Should have the factory certificate or second interview list, if the factory for more than three months should be used according to the test results.
2.1.2 white cement, white cement, 325.
2.1.3 sand, coarse sand and medium sand, sieving before use.
2.1.4, polished granite, marble, precast terrazzo, etc, according to requirements of design and drawing specification, color and other materials. But the surface must not have hidden defects such as injury, weathering. Unfavorable use easy fade materials packaging.
2.1.5 other materials, such as plaster of Paris, copper wire or galvanized wire, lead leather, hard plastic slat, matching pendant (galvanized or stainless steel fittings, etc.); It should be equipped with appropriate or polished granite and marble, precast terrazzo, etc. Close to the color of various stone slag and mineral pigments; 107 glue and veneer aperture of a special plastic hose, etc.
2.2 the main equipment:
2.2.1, iron plate, half drum, small scale, the dustpan, flat shovel bucket, carts, plastic hose, rubber bowl, watering can, flat chisel, alloy steel drill bit (phi 5, drilling), operation support, bench drill, iron level, feet, foot board, the bottom rod (3000 ~ 5000 mm x 40 mm x 10 ~ 15 mm), line board, line drop, chalk line package, high stool, wedge, small desktop grinding wheel, grinding wheel for cutting marble instead use, the whole suit cut cut machine, operation, grey board and lead skin (1 mm thick), wood float, iron float, fine steel wire brush, broom, the size of the hammer, the small white wire, galvanized iron wire, clean cloth or cotton silk, pliers, spade, box feet, nails, red pencil, brush, tool bag, etc.
2.3 operation conditions:
Apply for structure acceptance 2.3.1. A type of work (water and electricity, ventilation, equipment installation, etc.) work should be done in the previous, and ready to processing panels required for water, power, etc.
The metope inside the 2.3.2 play 50 cm (horizontal outdoor metope play + 0 and each layer level elevation control line).
2.3.3 type hanging basket scaffold pitched well ahead of schedule, appropriate chooses double row shelf (top outdoor appropriate USES hanging basket, multilayer bridge type shelf, etc.) can be used, its bearing bar and rod should leave the doors and Windows spat 150 ~ 200 mm. High shelf step to conform to the requirements of the construction.
2.3.4 must take a door window frame and window frame made (location accurate, vertical, and firm, and is considering installing a marble size has enough allowance). At the same time want to use 1:3 cement mortar to block a gap sealed. Aluminium alloy door window frame seam sealing materials used should comply with the design requirements, and plug plugging close-grained pasted protective film in advance.
2.3.5, polished granite or marble precast terrazzo approach should be piled up in the interior, such as mat under the wood, check the quantity, specifications, and spread, colourful, number, etc, for formal when the shop is stuck by number.
2.3.6 large-area construction should be released before the construction details, and make a sample, the quality inspection department after appraisal is eligible, pass design, party a and the construction unit jointly determined. Can organize team construction according to the requirements of sample.
2.3.7 stone should be acceptance of approach should be chosen when uneven color, when it is necessary to try to spell.
3 operation process
3.1 process:
3.1.1 thin small pieces material specifications (length less than 40 mm) process:
Basic level processing - hung vertically, set square, find rules, stick ash cake to wipe the underlying mortar, line analysis - >
Row piece - leaching tile - seam jointing and brush set and stick a piece of wood surface
3.1.2 large size block of material (side length is more than 40 mm) process:
Construction preparation (drilling, carved slot - copper wire or galvanized wire and fixed to tie, fixed steel mesh, piece of wood
Hung vertically, find rules play line to install, polished granite or marble precast terrazzo, layered grouting to wipe a seam
3.2 thin small pieces material specifications (typically under 10 mm thickness) : side length is less than 40 mm, can be used to paste method.
3.2.1 for basic level processing and vertical, set of square, to find the rules, the other can see furring brick construction key points of the parts. Attention should be paid to the same can not have a row of not more than the whole metope brick, and should be set on a hidden area.
3.2.2 wet at the grassroots level, first brush 107 glue, slurry along down (within 10% of the 107 glue), along with the brush with the base; Bottom ash using 1:3 cement mortar, thickness of about 12 mm., points 2 times the operation, the first time about 5 mm, and the second time about 7 mm, after being bottom ash compaction leveling, MAO base gray surface.
3.2.3 after being base ash solidification can be chunked play line, then will have wet piece of material with thickness of 2 ~ 3 mm of cement slurry, water blending in 20% of 107 glue stick (powder) can also be used to inlay, tapping with wooden hammer, using the leveling by feet to look straight.
3.3 large size tile: side length is more than 40 mm, with height more than 1 m, installation method can be used.
3.3.1 drilling and carved slot: before you install panels according to the design requirements with bench drill, and punch a hole in advance should nail wooden frame bit straight face on the board, under every board, the two sides, punch a hole a dozen from the ends of the plate width 1/4, dozen two eye on each side, aperture of 5 mm, depth of 12 mm, the back hole location is apart from the slabs with 8 mm advisable (refers to the drilling center). Such as marble or precast terrazzo, polished granite, sheet width is large, can increase the hole number. After drilling the stone on the back of the hole wall with an adamant chisel gently pick a channel slot, about 5 mm deep, along with the hole forming trunk eye; for the lie buried copper wire (figure 9-6).
Figure 9-6 veneer board schematic punch a hole
If panels larger specifications, especially the precast terrazzo and polished granite slab, the following bad side tie galvanized wire or copper wire, can be set without stick act the role of the side panel, using handheld portable small and thin grinding wheel (4 ~ 5 mm), in accordance with the provisions, on the board of 1/4, under various driving a tank (tank is about 3 ~ 4 mm long, groove depth and act the role of the back panel through about 12 mm, vertical slot generally center, can be partial, but with no damage to the finish and the alkali advisable), can be galvanized wire or copper wire lie into the slot, and tied to steel fabric fixed. This method can be directly on the site is doing with stick.
3.3.2 rainfall distribution on 10-12 steel wire or galvanized wire: the prepared copper wire or galvanized wire cut into 20 cm, end with a wooden wedge sticky epoxy resin copper wire or galvanized wire mould it into hole fixed and firm, the other end of the copper wire or galvanized wire along the groove bending and lie down into the slot, or precast terrazzo, marble polished slab mesh upper and lower end face no copper wire or galvanized wire is outstanding, in order to and adjacent slab joints.
3.3.3 banding steel fabric: first take out the wall embedded tendons, stick metope with marble or the part of the precast terrazzo clean. Tie a vertical phi first 6 reinforced, and tied the good vertical reinforcement with embedded steel bending pressure on metope. Transverse reinforcement for binding or precast terrazzo, polished granite marble plank used, such as plate height is 60 cm, the first line of transverse reinforcement at 10 cm above the ground and the main rebar tie, used as a binding layer 1 plate mouth under fixed copper wire or galvanized wire. Of the second transverse reinforcement is tied to 50 cm level 7 ~ 8 cm, SLATE hooks that are lower than 2 ~ 3 cm, used to tie the first layer tablets (fixed copper wire or galvanized wire, again upwards every 60 cm tie a transverse reinforcement.
We play line: first, the marble or precast terrazzo, polished granite walls, cylindrical, and doors and Windows to big line drop out from top to bottom vertical (top application theodolite for vertical). Should consider or precast terrazzo, marble polished granite plate thickness, grouting mortar and steel mesh size of the gap, general marble or precast terrazzo, polished granite crust structure surface thickness should be in 5 to 7 cm is advisable. Find out, after vertical pop up on the ground along the wall marble or prefabricated contour size line grinding block thereof (cylinder and door window set of equivalent). This line is the first layer of marble or installation datum line of a precast terrazzo, etc. Make up a good number of marble or prefabricated water tablets, such as playing a good draw a line in place, the on line each leave 1 mm gap (such as the design requirements for open seam, are set aside as stipulated in the design gap).
3.3.5 installation or precast terrazzo, marble polished granite: according to the parts get tablets and comfortable straight wire or galvanized wire, the stone in place, tablets are used on the back, on the back of your hand into the stone, the stone mouth copper wire or galvanized wire binding on the transverse reinforcement. Don't too tight to can leave allowance, as long as the copper wire or galvanized wire and transverse reinforcement bolt it tightly (namely after grouting anchor), the SLATE, can bind marble or precast terrazzo polishing granite slab, copper wire or galvanized wire, and the wedge cushion, tile aperture (the thickness of grouting) with grassroots generally is 30 ~ 50 mm. In checking and adjusting chock on foot plate, and then fasten copper wire or galvanized wire, in turn to the other party. Cylinder can be installed in clockwise direction, typically start first from the front. Installed in the first layer on foot board for vertical level for flat feet find Angle founder of Yin and Yang, when installing a slab such as inaccurate or SLATE grey SLATE now specification, the gap between the application of lead leather cushion, make the slab cracks between uniform, and keep the first layer tablets (straight. After looking for the vertical and level off, founder, a bowl with modulation plaster of Paris, stick into the evolution of gypsum in between up and down or precast terrazzo, marble polishing granite slab, make this second floor slab into a whole, wedge can be pasted plaster, reoccupy on foot board for deformation, such as gypsum hardening rear can grouting (such as design with sealing plastic hose, should be in before grouting plug in place).
3.3.6 grouting, put the mixture ratio of 1:2.5 cement mortar in the half big barrel of water into gruel (consistency general is 8 ~ 12 cm), then pour with the dustpan spoon syrup, be careful not to touch the marble or prefabricated waterproof slab, while filling with rubber hammer tapping the slab surface is made into mortar exhaust. The first layer water height is 15 cm, can not exceed 1/3 of the slab height; The first layer grouting is very important, because want to anchor slab under the mouth copper wire and slab, so gently operation, to prevent collisions and fill up. If offshoring slab rupture occurs, shall be immediately removed.
First insert stop l ~ 2 h after 15 cm, such as mortar initial setting, should check whether there is a movement, and then to the second grouting, grouting highly generally is 20 ~ 30 cm, with initial setting to continue after grouting. The third layer grouting to below board's top 5 ~ 10 cm.
3.3.7 brush seam: all tablets after the installation, remove all gypsum and yu slurry, with sackcloth scrub clean, and press the stone color paste caulking modulation, embedded and wipe up, make dense aperture, uniform, clean, consistent color.
3.3.8 pillar cover: install cylinder or precast terrazzo, marble polished granite, its elastic line, such as drilling, tie bar and installation process and set the wall in the same way, attention should be paid to use wood before grouting prescription nail into grooved wooden clip, double-sided sticking Dali or prefabricated waterproof slab, to prevent the grouting or precast terrazzo, marble polishing granite slab bulge.
3.4 summer outdoor installation or precast terrazzo, polished granite, marble should have reliable measures to prevent exposure.
3.5 winter construction:
3.5.1 track of seam filling slurry heat preservation measures should be taken, the temperature of the slurry should not be lower than 5 ℃.
3.5.2 perfusion mortar early hardening may not be cold. When the temperature below 5 ℃, outdoor perfusion slurry can be mixed with admixture can reduce the freezing temperature, its content should be determined by test.
3.5.3 with freezing method of masonry wall, should be the thaw rear can construction.
3.5.4 winter construction, stick act the role of the appropriate panel heating and hot air can be applied or belt stove chimney to accelerate drying. When the hot air is used, should be excluded from moisture set ventilation equipment. Temperature control and management and designated persons, thermal curing 7 ~ 9 d.
4 quality standards
4.1 ensure projects:
4.4.1 panel (marble, prefabricated, polished granite) varieties, specifications, color, pattern, must comply with the design requirements and the provisions of the relevant standards.
4.1.2 panel installation (with plaster) must be strong, do not empty drum, skew, lack of stare blankly out Angle and cracks and other defects.
4.2 the basic items:
2: surface level off, clean, color coordinated.
4.2.2 seam filling embedded compact, flat, width is consistent, the same color, Yin and Yang Angle plate pressure to the right, the use of parts of the whole board is appropriate.
Holdings set cut: with whole set of cutting, edge neat; Dado, stick on the face and a flowing smoothly, the thickness of it outstand the wall.
4.2.4 wave direction, drip line: water slope to correct; Drip line straight.
4.3, polished granite and marble precast terrazzo allowable deviation projects; See table 9-30;
Marble, polished granite, prefabricated panels installed allowable deviation table 9-30
Will project allow deviation (mm) check method
Marble, polished granite precast terrazzo
Facade vertical indoor 2 2 in 2 m quantity check line board and ruler
Outdoor 3 3
2 surface is flat and level 1 in 2 m by 2 feet and wedge feeler check
3 2 2 with 20 Yang Angle founder. M meters and wedge feeler check
Seam straight 2, 3, 4, 5 m string cable, less than 5 m's line and the ruler quantity check
5 dado flowing straight 2 2, 5 m string cable, less than 5 m's line and the ruler quantity check
6 seam height 0.3 0.3 short feet with steel plates and wedge feeler check
7 seam width deviation 0.5 0.5 5 m string cable and rod inspection
5 finished product protection
5.1, polished granite, marble, precast terrazzo cylinder, door set after the installation, such as Yang Angle should be timely with boards of all surface protection. At the same time to clear in time clean residue slurry in door window frame, door. Aluminum alloy door window frame, door, in particular, should be pasted in advance protective film, prevent pollution.
5.2, polished granite and marble prefabricated water after the stone wall with stick, should be timely stickers or plastic film protection, so as to guarantee the metope is not contaminated.
5.3 the combination of veneer layer before condensation should prevent dry, sun, water, the impact and vibration.
5.4 when the demolition of frame don't collision metope.
6 should pay attention to quality problems
6.1 juncture, height difference is too big, mainly is the basic level processing is bad, not strictly selected, the quality of plate try spell without carefully before installation, improper operation, the split grouting is too high, easy to cause the SLATE offshoring or surface rupture, resulting in seam uneven, height difference is too big.
6.2 empty drum: is mainly caused by grouting is not full, imperfect. Such as the filling body, make the mortar cannot flow or caused by steel mesh block it false and empty drum; Such as mortar thin, on the one hand, easy to cause leak slurry, or due to evaporation form space empty drum; Finally clear when gypsum, carved greatly too forcibly chisel, empty drum plate vibration; Lack of maintenance, dehydration, also can produce the empty drum, etc.
6.3 crack:
6.3.1 some marble stone is poorer, color lines, when set put undeserved, metope space up and down less, often affected by a variety of external force, appeared in the seam of colour dark or other hidden place such as injury, produce irregular cracks.
6.3.2 set wall, cylindrical, gap smaller from top to bottom, compressive deformation structure, make the facing slab vertical pressure and cracking. Construction should stay after wall, cylindrical bearing structure and the stability, especially in the top and bottom, installing a plate, should have a certain gap, to prevent compression structure, facing slab bearing directly by cracking.
: 6.4 metope of clash, pollution is mainly due to the tile mortar in handling and operation such as dirt pollution, at the end of the timely cleaning, or after installation finished product protection. Should with hand wipe, lest time is too long pollution panel. In addition, still should guard against acid and alkali chemical products, such as colored liquid direct contact with the marble surface, such as pollution.
6.5 such as outdoor large area with veneer, sunrise, but also directly recommended dry hanging method, can not only keep the original veneer clear and beautiful, and won't produce veneer peeling accident due to temperature change. Such as adopt traditional wet hang operations, it is recommended that the design should consider setting deformation joint and stitch (such as case law or pull board, etc.), the purpose is to defend and block material loss due to the heat bilges cold shrink cracks, at the same time also suggested to have prevent piece the alkali and other measures.
7 quality records
This technology standard should have the following quality records:
7.1, polished granite and marble material such as precast terrazzo factory certificate.
7.2 part project quality inspection evaluation table.
1 scope
The technology standard is applicable to civil and public buildings indoor metope, cylinder and door window set of marble, polished granite, precast terrazzo veneer decoration engineering, etc.
2 construction preparation
2.1 material requirements:
2.1.1 cement: ordinary Portland cement, 325. Should have the factory certificate or second interview list, if the factory for more than three months should be used according to the test results.
2.1.2 white cement, white cement, 325.
2.1.3 sand, coarse sand and medium sand, sieving before use.
2.1.4, polished granite, marble, precast terrazzo, etc, according to requirements of design and drawing specification, color and other materials. But the surface must not have hidden defects such as injury, weathering. Unfavorable use easy fade materials packaging.
2.1.5 other materials, such as plaster of Paris, copper wire or galvanized wire, lead leather, hard plastic slat, matching pendant (galvanized or stainless steel fittings, etc.); It should be equipped with appropriate or polished granite and marble, precast terrazzo, etc. Close to the color of various stone slag and mineral pigments; 107 glue and veneer aperture of a special plastic hose, etc.
2.2 the main equipment:
2.2.1, iron plate, half drum, small scale, the dustpan, flat shovel bucket, carts, plastic hose, rubber bowl, watering can, flat chisel, alloy steel drill bit (phi 5, drilling), operation support, bench drill, iron level, feet, foot board, the bottom rod (3000 ~ 5000 mm x 40 mm x 10 ~ 15 mm), line board, line drop, chalk line package, high stool, wedge, small desktop grinding wheel, grinding wheel for cutting marble instead use, the whole suit cut cut machine, operation, grey board and lead skin (1 mm thick), wood float, iron float, fine steel wire brush, broom, the size of the hammer, the small white wire, galvanized iron wire, clean cloth or cotton silk, pliers, spade, box feet, nails, red pencil, brush, tool bag, etc.
2.3 operation conditions:
Apply for structure acceptance 2.3.1. A type of work (water and electricity, ventilation, equipment installation, etc.) work should be done in the previous, and ready to processing panels required for water, power, etc.
The metope inside the 2.3.2 play 50 cm (horizontal outdoor metope play + 0 and each layer level elevation control line).
2.3.3 type hanging basket scaffold pitched well ahead of schedule, appropriate chooses double row shelf (top outdoor appropriate USES hanging basket, multilayer bridge type shelf, etc.) can be used, its bearing bar and rod should leave the doors and Windows spat 150 ~ 200 mm. High shelf step to conform to the requirements of the construction.
2.3.4 must take a door window frame and window frame made (location accurate, vertical, and firm, and is considering installing a marble size has enough allowance). At the same time want to use 1:3 cement mortar to block a gap sealed. Aluminium alloy door window frame seam sealing materials used should comply with the design requirements, and plug plugging close-grained pasted protective film in advance.
2.3.5, polished granite or marble precast terrazzo approach should be piled up in the interior, such as mat under the wood, check the quantity, specifications, and spread, colourful, number, etc, for formal when the shop is stuck by number.
2.3.6 large-area construction should be released before the construction details, and make a sample, the quality inspection department after appraisal is eligible, pass design, party a and the construction unit jointly determined. Can organize team construction according to the requirements of sample.
2.3.7 stone should be acceptance of approach should be chosen when uneven color, when it is necessary to try to spell.
3 operation process
3.1 process:
3.1.1 thin small pieces material specifications (length less than 40 mm) process:
Basic level processing - hung vertically, set square, find rules, stick ash cake to wipe the underlying mortar, line analysis - >
Row piece - leaching tile - seam jointing and brush set and stick a piece of wood surface
3.1.2 large size block of material (side length is more than 40 mm) process:
Construction preparation (drilling, carved slot - copper wire or galvanized wire and fixed to tie, fixed steel mesh, piece of wood
Hung vertically, find rules play line to install, polished granite or marble precast terrazzo, layered grouting to wipe a seam
3.2 thin small pieces material specifications (typically under 10 mm thickness) : side length is less than 40 mm, can be used to paste method.
3.2.1 for basic level processing and vertical, set of square, to find the rules, the other can see furring brick construction key points of the parts. Attention should be paid to the same can not have a row of not more than the whole metope brick, and should be set on a hidden area.
3.2.2 wet at the grassroots level, first brush 107 glue, slurry along down (within 10% of the 107 glue), along with the brush with the base; Bottom ash using 1:3 cement mortar, thickness of about 12 mm., points 2 times the operation, the first time about 5 mm, and the second time about 7 mm, after being bottom ash compaction leveling, MAO base gray surface.
3.2.3 after being base ash solidification can be chunked play line, then will have wet piece of material with thickness of 2 ~ 3 mm of cement slurry, water blending in 20% of 107 glue stick (powder) can also be used to inlay, tapping with wooden hammer, using the leveling by feet to look straight.
3.3 large size tile: side length is more than 40 mm, with height more than 1 m, installation method can be used.
3.3.1 drilling and carved slot: before you install panels according to the design requirements with bench drill, and punch a hole in advance should nail wooden frame bit straight face on the board, under every board, the two sides, punch a hole a dozen from the ends of the plate width 1/4, dozen two eye on each side, aperture of 5 mm, depth of 12 mm, the back hole location is apart from the slabs with 8 mm advisable (refers to the drilling center). Such as marble or precast terrazzo, polished granite, sheet width is large, can increase the hole number. After drilling the stone on the back of the hole wall with an adamant chisel gently pick a channel slot, about 5 mm deep, along with the hole forming trunk eye; for the lie buried copper wire (figure 9-6).
Figure 9-6 veneer board schematic punch a hole
If panels larger specifications, especially the precast terrazzo and polished granite slab, the following bad side tie galvanized wire or copper wire, can be set without stick act the role of the side panel, using handheld portable small and thin grinding wheel (4 ~ 5 mm), in accordance with the provisions, on the board of 1/4, under various driving a tank (tank is about 3 ~ 4 mm long, groove depth and act the role of the back panel through about 12 mm, vertical slot generally center, can be partial, but with no damage to the finish and the alkali advisable), can be galvanized wire or copper wire lie into the slot, and tied to steel fabric fixed. This method can be directly on the site is doing with stick.
3.3.2 rainfall distribution on 10-12 steel wire or galvanized wire: the prepared copper wire or galvanized wire cut into 20 cm, end with a wooden wedge sticky epoxy resin copper wire or galvanized wire mould it into hole fixed and firm, the other end of the copper wire or galvanized wire along the groove bending and lie down into the slot, or precast terrazzo, marble polished slab mesh upper and lower end face no copper wire or galvanized wire is outstanding, in order to and adjacent slab joints.
3.3.3 banding steel fabric: first take out the wall embedded tendons, stick metope with marble or the part of the precast terrazzo clean. Tie a vertical phi first 6 reinforced, and tied the good vertical reinforcement with embedded steel bending pressure on metope. Transverse reinforcement for binding or precast terrazzo, polished granite marble plank used, such as plate height is 60 cm, the first line of transverse reinforcement at 10 cm above the ground and the main rebar tie, used as a binding layer 1 plate mouth under fixed copper wire or galvanized wire. Of the second transverse reinforcement is tied to 50 cm level 7 ~ 8 cm, SLATE hooks that are lower than 2 ~ 3 cm, used to tie the first layer tablets (fixed copper wire or galvanized wire, again upwards every 60 cm tie a transverse reinforcement.
We play line: first, the marble or precast terrazzo, polished granite walls, cylindrical, and doors and Windows to big line drop out from top to bottom vertical (top application theodolite for vertical). Should consider or precast terrazzo, marble polished granite plate thickness, grouting mortar and steel mesh size of the gap, general marble or precast terrazzo, polished granite crust structure surface thickness should be in 5 to 7 cm is advisable. Find out, after vertical pop up on the ground along the wall marble or prefabricated contour size line grinding block thereof (cylinder and door window set of equivalent). This line is the first layer of marble or installation datum line of a precast terrazzo, etc. Make up a good number of marble or prefabricated water tablets, such as playing a good draw a line in place, the on line each leave 1 mm gap (such as the design requirements for open seam, are set aside as stipulated in the design gap).
3.3.5 installation or precast terrazzo, marble polished granite: according to the parts get tablets and comfortable straight wire or galvanized wire, the stone in place, tablets are used on the back, on the back of your hand into the stone, the stone mouth copper wire or galvanized wire binding on the transverse reinforcement. Don't too tight to can leave allowance, as long as the copper wire or galvanized wire and transverse reinforcement bolt it tightly (namely after grouting anchor), the SLATE, can bind marble or precast terrazzo polishing granite slab, copper wire or galvanized wire, and the wedge cushion, tile aperture (the thickness of grouting) with grassroots generally is 30 ~ 50 mm. In checking and adjusting chock on foot plate, and then fasten copper wire or galvanized wire, in turn to the other party. Cylinder can be installed in clockwise direction, typically start first from the front. Installed in the first layer on foot board for vertical level for flat feet find Angle founder of Yin and Yang, when installing a slab such as inaccurate or SLATE grey SLATE now specification, the gap between the application of lead leather cushion, make the slab cracks between uniform, and keep the first layer tablets (straight. After looking for the vertical and level off, founder, a bowl with modulation plaster of Paris, stick into the evolution of gypsum in between up and down or precast terrazzo, marble polishing granite slab, make this second floor slab into a whole, wedge can be pasted plaster, reoccupy on foot board for deformation, such as gypsum hardening rear can grouting (such as design with sealing plastic hose, should be in before grouting plug in place).
3.3.6 grouting, put the mixture ratio of 1:2.5 cement mortar in the half big barrel of water into gruel (consistency general is 8 ~ 12 cm), then pour with the dustpan spoon syrup, be careful not to touch the marble or prefabricated waterproof slab, while filling with rubber hammer tapping the slab surface is made into mortar exhaust. The first layer water height is 15 cm, can not exceed 1/3 of the slab height; The first layer grouting is very important, because want to anchor slab under the mouth copper wire and slab, so gently operation, to prevent collisions and fill up. If offshoring slab rupture occurs, shall be immediately removed.
First insert stop l ~ 2 h after 15 cm, such as mortar initial setting, should check whether there is a movement, and then to the second grouting, grouting highly generally is 20 ~ 30 cm, with initial setting to continue after grouting. The third layer grouting to below board's top 5 ~ 10 cm.
3.3.7 brush seam: all tablets after the installation, remove all gypsum and yu slurry, with sackcloth scrub clean, and press the stone color paste caulking modulation, embedded and wipe up, make dense aperture, uniform, clean, consistent color.
3.3.8 pillar cover: install cylinder or precast terrazzo, marble polished granite, its elastic line, such as drilling, tie bar and installation process and set the wall in the same way, attention should be paid to use wood before grouting prescription nail into grooved wooden clip, double-sided sticking Dali or prefabricated waterproof slab, to prevent the grouting or precast terrazzo, marble polishing granite slab bulge.
3.4 summer outdoor installation or precast terrazzo, polished granite, marble should have reliable measures to prevent exposure.
3.5 winter construction:
3.5.1 track of seam filling slurry heat preservation measures should be taken, the temperature of the slurry should not be lower than 5 ℃.
3.5.2 perfusion mortar early hardening may not be cold. When the temperature below 5 ℃, outdoor perfusion slurry can be mixed with admixture can reduce the freezing temperature, its content should be determined by test.
3.5.3 with freezing method of masonry wall, should be the thaw rear can construction.
3.5.4 winter construction, stick act the role of the appropriate panel heating and hot air can be applied or belt stove chimney to accelerate drying. When the hot air is used, should be excluded from moisture set ventilation equipment. Temperature control and management and designated persons, thermal curing 7 ~ 9 d.
4 quality standards
4.1 ensure projects:
4.4.1 panel (marble, prefabricated, polished granite) varieties, specifications, color, pattern, must comply with the design requirements and the provisions of the relevant standards.
4.1.2 panel installation (with plaster) must be strong, do not empty drum, skew, lack of stare blankly out Angle and cracks and other defects.
4.2 the basic items:
2: surface level off, clean, color coordinated.
4.2.2 seam filling embedded compact, flat, width is consistent, the same color, Yin and Yang Angle plate pressure to the right, the use of parts of the whole board is appropriate.
Holdings set cut: with whole set of cutting, edge neat; Dado, stick on the face and a flowing smoothly, the thickness of it outstand the wall.
4.2.4 wave direction, drip line: water slope to correct; Drip line straight.
4.3, polished granite and marble precast terrazzo allowable deviation projects; See table 9-30;
Marble, polished granite, prefabricated panels installed allowable deviation table 9-30
Will project allow deviation (mm) check method
Marble, polished granite precast terrazzo
Facade vertical indoor 2 2 in 2 m quantity check line board and ruler
Outdoor 3 3
2 surface is flat and level 1 in 2 m by 2 feet and wedge feeler check
3 2 2 with 20 Yang Angle founder. M meters and wedge feeler check
Seam straight 2, 3, 4, 5 m string cable, less than 5 m's line and the ruler quantity check
5 dado flowing straight 2 2, 5 m string cable, less than 5 m's line and the ruler quantity check
6 seam height 0.3 0.3 short feet with steel plates and wedge feeler check
7 seam width deviation 0.5 0.5 5 m string cable and rod inspection
5 finished product protection
5.1, polished granite, marble, precast terrazzo cylinder, door set after the installation, such as Yang Angle should be timely with boards of all surface protection. At the same time to clear in time clean residue slurry in door window frame, door. Aluminum alloy door window frame, door, in particular, should be pasted in advance protective film, prevent pollution.
5.2, polished granite and marble prefabricated water after the stone wall with stick, should be timely stickers or plastic film protection, so as to guarantee the metope is not contaminated.
5.3 the combination of veneer layer before condensation should prevent dry, sun, water, the impact and vibration.
5.4 when the demolition of frame don't collision metope.
6 should pay attention to quality problems
6.1 juncture, height difference is too big, mainly is the basic level processing is bad, not strictly selected, the quality of plate try spell without carefully before installation, improper operation, the split grouting is too high, easy to cause the SLATE offshoring or surface rupture, resulting in seam uneven, height difference is too big.
6.2 empty drum: is mainly caused by grouting is not full, imperfect. Such as the filling body, make the mortar cannot flow or caused by steel mesh block it false and empty drum; Such as mortar thin, on the one hand, easy to cause leak slurry, or due to evaporation form space empty drum; Finally clear when gypsum, carved greatly too forcibly chisel, empty drum plate vibration; Lack of maintenance, dehydration, also can produce the empty drum, etc.
6.3 crack:
6.3.1 some marble stone is poorer, color lines, when set put undeserved, metope space up and down less, often affected by a variety of external force, appeared in the seam of colour dark or other hidden place such as injury, produce irregular cracks.
6.3.2 set wall, cylindrical, gap smaller from top to bottom, compressive deformation structure, make the facing slab vertical pressure and cracking. Construction should stay after wall, cylindrical bearing structure and the stability, especially in the top and bottom, installing a plate, should have a certain gap, to prevent compression structure, facing slab bearing directly by cracking.
: 6.4 metope of clash, pollution is mainly due to the tile mortar in handling and operation such as dirt pollution, at the end of the timely cleaning, or after installation finished product protection. Should with hand wipe, lest time is too long pollution panel. In addition, still should guard against acid and alkali chemical products, such as colored liquid direct contact with the marble surface, such as pollution.
6.5 such as outdoor large area with veneer, sunrise, but also directly recommended dry hanging method, can not only keep the original veneer clear and beautiful, and won't produce veneer peeling accident due to temperature change. Such as adopt traditional wet hang operations, it is recommended that the design should consider setting deformation joint and stitch (such as case law or pull board, etc.), the purpose is to defend and block material loss due to the heat bilges cold shrink cracks, at the same time also suggested to have prevent piece the alkali and other measures.
7 quality records
This technology standard should have the following quality records:
7.1, polished granite and marble material such as precast terrazzo factory certificate.
7.2 part project quality inspection evaluation table.
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