Strengthen the plaster polystyrene composite panels within the exterior wall insulation 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 plaster polystyrene composite board for enhancement. Does not apply to such as kitchen, toilet humidity larger room.
2 construction preparation
2.1 material and main equipments:
2.1.1 reinforced gypsum polystyrene composite panels:
Size: 2400 ~ 2700 mm long, 595 mm wide, 50 mm thick, 60 mm.
Technical performance, surface density, 25 kg/m2 or less moisture content of 5% or less; The equivalent thermal resistance, K/W, 0.8 m2 or bending load acuity 1.5 G sheet for the weight of the N (G); The compressive strength 7.0 MPa (surface) or greater; Reduction of 0.08% or less; The softening coefficient > 0.50.
2.1.2 adhesive:
2.1.2.1 SG791 building adhesive: with a vinyl acetate monomer of polymer background rubber, and other raw materials preparation, colorless transparent insulated liquid. This adhesive solution and building gypsum powder made adhesives, mixture ratio is building gypsum powder: SG791 = 1:0.6 ~ 0.7 (weight ratio), the article applies to gypsum board, gypsum board and brick walls, concrete wall binding. Gypsum and gypsum binder, pressure shear strength is not lower than 2.5 MPa. Use other types of gypsum adhesive should be tested.
2.1.2.2 EC - 6 mortar adhesive: used to paste the waterproof thermal insulation kicking. With EC - 6 adhesives and made from cement, 425. EC - 6 type glue: water = 1:1 (weight ratio), mixed gel liquid cement, fine = 1, 2, 425 mixing into dry mortar, then add in adhesive solution the right consistency of EC - 6 type polymer cement mortar adhesive, the adhesive strength acuity 1.1 MPa.
2.1.3 building gypsum powder: should comply with the standard level 3 above.
2.1.4 gypsum putty: used for full wall. The following properties:
> 2. The compressive strength of 5 MPa, flexural strength > 1.0 MPa,
Bond strength > 0.2 MPa, final set time of 3 h.
2.1.5 glass fiber grid cloth, used to deal with the joints (50 mm) wide and metope Angle of additional layer (fabric width 200 mm).
In the alkali glass fiber / 8 in plastic coated mesh cloth
> 80 g/m2
Breaking strength: 25 mm x 100 mm
By the 300 n >
Zonal > 150 n
2.1.6 WKF seam putty: used for plate processing.
> 3.0 MPa compressive strength, flexural strength > 1.5 MPa, the initial setting time > 0.5 h.
2.1.7 waterproof insulation kicking: as shown in figure 9-4.
2.1.8 mainly machinery, broom, carpenter handsaw, wire brush, 2 m by feet, surgery, 2 m line with flat plate, steel rule, rubber hammer, drill, etc.
2.2 operation conditions:
2.2.1 structure acceptance, roofing waterproof layer has been completed. Metope pop-up + 50 cm elevation lines.
2.2.2 inside wall, outside doors and window, window sill board installation. The door, window and plaster.
2.2.3 plumbing and decoration engineering need of pipe clamp, furnace hook, curtain rod handle shall set aside position or buried; Electrical engineering pipeline, junction box, etc must be buried, and shall complete the wear of dark line with line of work.
2.2.4 operation place environment temperature is not lower than 5 ℃.
2.2.5 exterior wall insulation construction after the completion of the appropriate outer eaves plaster.
2.2.6 formally before the installation, try to install mold wall, identified qualified before installation.
3 the construction technology
3.1 enhance gypsum polystyrene board exterior wall insulation practice basic structure are shown in table 9 to 25.
Basic structure table 9 to 25
External wall thermal insulation structure schematic
Air layer composite thermal insulation layer
Or reinforced concrete wall
Ordinary clay brick wall
(1)
20 mm thick
(2)
50 mm
60 mm
(3)
3.2 process:
Metope to clean up - step structure, elastic line mark tube - plate and repair - card, such as furnace hook and built-in position - >
Metope stick cake and junction box, pipe clamp, and built-in to install skirting board of waterproof thermal insulation composite panels, such as installation of composite panels
Joints and the Yin and Yang Angle processing and surface decoration
3.3 construction key points:
3.3.1 structure wall cleaning: every bulge metope 20 mm mortar, concrete blocks must remove, sweep and metope.
3.3.2 rainfall distribution on 10-12 step, elastic line:
3.3.2.1 based on Windows and doors hole edge, to both sides according to the step width of 600 mm.
3.3.2.2 according to the thickness of insulating layer on top of the wall, pop-up insulation wall edge. According to the thickness of the waterproof insulation layer that play a base on the ground the pop-up waterproof thermal insulation play feet wide, and popup that play a base on the metope of flowing lines.
3.3.2.3 according to the position shown in figure 9 to 5, underlining that the point location.
3.3.3 plate, repair: according to the step plate. Composite insulation board is slightly less than the length of the roof to kick perceptible clear height size. Calculation and measurement Windows and doors hole of the upper and the lower part of the window insulation board size, and according to the size of the plate. When the length of the insulation board and wall does not adapt, should be part of the insulation board in advance splicing widened sawing (or narrow) into the appropriate width, and placed in the shade. The defective board should be repaired.
We do metope stick cake: stick cake as follows;
3.3.4.1 position in stick cake, use wire brush to brush the clean surface not less than 100 mm in diameter and water wetting, brush a 107 plastic cement slurry.
3.3.4.2 check metope smooth, vertical, find rules posted loaves of bread, and the need to set up also make a 200 mm x 200 mm grey cake.
3.3.4.3 stick cake materials to 1:3 cement mortar, phi ash cake size of 100 mm, thickness to ensure that the thickness of air layer (about 20 mm) shall prevail.
3.3.5 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.
3.3.6 paste waterproof insulation skirting board:
3.3.6.1 around skirting board inside of the top and bottom, by 200 ~ 300 mm spacing layout EC - 6 mortar adhesive bonding points, at the same time in the skirting board bottom surface and the adjacent is paste on the skirting board with scraping the adhesive side of the wall.
The skirting board of 3.3.6.2 press line paste, paste with rubber hammer knock vibration make the skirting board paste, squeeze real spell head seam, and extrusion of adhesive is clean at any time.
Shall be provided to the skirting board flowing 3.3.6.3 paste hand, board face perpendicular to guaranteed the air layer between the skirting board and structural wall around 10 mm.
3.3.7 installation of composite panels:
3.3.7.1 will be the location of the junction box, pipe clamp, and built-in accurately to the panel, and open the mouth of the cave.
3.3.7.2 composite board installation sequence should be from left to right in turn order. Plate on the side, top and bottom flush not grey, on the side of metope, end face, skirting board, the top of the composite board top, bottom and sides (all the jointing surface), ash cake surface brush a gel SG791 liquid first, then full SG791 adhesives, according to the elastic line position in place immediately. Each insulation board, except the paste on the ash cake plate in the middle should be > 10% surface area of the plum blossom shaped SG791 adhesive points directly to the wall with tape.
Installed in the flat push, with a rubber hammer knock, make all phase split face tight risk pulp, and making composite board with grey. With the top of the composite board, if not packed tightly with cracks, it with proper chocking, wedge and SG791 adhesive will be easy to fill compaction (adhesive dry retreat to chock, using SG791 adhesive tamping compaction).
The installation process, scrape to evenness with adhesive will squeeze operation at any time.
According to the above operation way to install composite board in turn. The installation process at any time with 2 m by h and feeler flatness of metope, in 2 m line plate inspection of verticality. Higher part of the rubber hammer knock on hand.
3.3.7.3 composite panels in the doors and Windows to crack in the hole with embedded fill dense SG791 adhesives.
3.3.7.4 composite board exposed in the junction box, pipe clamp, and built-in and composite board aperture openings, with embedded SG791 adhesive compact.
3.3.8 joints and the Yin and Yang Angle processing: composite panels installed 10 d, check whether all gap binder is good, with and without crack such as cracks, should be repaired after find out the reason. Has good bonding of all joints, Yin Angle seam, to clean float ash, blowing a WKF layer seam putty, paste 50 mm wide with a layer of glass fiber grid, compaction, cement, surface with a WKF joint putty leveling. All external Angle paste 200 mm wide (100 mm) each side of glass fiber cloth, the method with the plate seam.
3.3.9 adhesive preparation: adhesive to use English along with the preparation of the adhesive should be finished within 30 mm.
3.3.10 decorate panel:
After surface grinding smooth, full blown gypsum putty, dry after all needs to burnish is flat and level, finally according to the regulations of design interior surface.
4 quality standards
4.1 ensure projects:
4.4.1 enhance technical indicators of plaster polystyrene composite board must satisfy the requirements stipulated in the relevant standards.
The quality of the adhesive dispensing materials must conform to the relevant provisions.
Inspection method: inspect the product certification.
4.1.2 reinforced gypsum polystyrene composite board four side adhesive must be strong.
The method of examination: hand vibration and observation.
4.2 the basic items:
2 node structure, component location, connecting anchoring method, all should comply with the design requirements.
Inspection method: to observe the examination.
4.2.2 cement composite board all the joint should be strong, should fill close-grained, should not appear dry crack.
Inspection method: to observe the examination.
Holdings fiberglass mesh belt (cloth) should be centered along the plate seam pressure stick close together, be without buckling, become warped edge, the leakage phenomenon. Inspection method: to observe the examination.
4.3 allowable deviation projects:
Strengthen plaster polystyrene composite board installation deviation should be allowed to meet the provisions of the table 9-26.
Composite panels installed allowable deviation table 926
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 5 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, hydropower professional should closely cooperate with each, 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 water and equipment to test the waters and the rainy season construction, effective measures should be taken to prevent insulation wall be affected with damp be affected with damp and pollution.
6 should pay attention to quality problems
6.1 enhance gypsum eps composite insulation board must be drying has been basically completed contraction deformation of products. Shall not be used without drying of wet plate, to prevent the cracks and deformation.
6.2 pay attention to enhance plaster polystyrene composite board of transportation and storage. Transportation to should take put down gently, side lift side stand, and tied up with each other, shall not be carried flat. Stacking place should level off, the pad (100 mm x 100 mm, board should stand sideways, mat 50 cm away from the plate end. To prevent the plate be affected with damp be affected with damp.
Plate if there are any obvious deformation, too much can't repair the holes, fracture or serious crack, damage, shall not be used.
6.3 plate slit is the quality common fault. One way to prevent plate slit is plate joint seam binding and plate processing in accordance with the operation process operation seriously; The second is the use of adhesive must be right. Currently using adhesives, except SG791 adhesive and Ⅰ gypsum adhesive, etc. The quality of the adhesive must be qualified. Three is appropriate USES WKF joint putty processing board.
7 quality records
This technology standard should have the following quality records:
7.1 enhance gypsum polystyrene composite board quality certificate.
7.2 adhesive quality certificate.
7.3 thermal insulation wall component project quality inspection records.
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 plaster polystyrene composite board for enhancement. Does not apply to such as kitchen, toilet humidity larger room.
2 construction preparation
2.1 material and main equipments:
2.1.1 reinforced gypsum polystyrene composite panels:
Size: 2400 ~ 2700 mm long, 595 mm wide, 50 mm thick, 60 mm.
Technical performance, surface density, 25 kg/m2 or less moisture content of 5% or less; The equivalent thermal resistance, K/W, 0.8 m2 or bending load acuity 1.5 G sheet for the weight of the N (G); The compressive strength 7.0 MPa (surface) or greater; Reduction of 0.08% or less; The softening coefficient > 0.50.
2.1.2 adhesive:
2.1.2.1 SG791 building adhesive: with a vinyl acetate monomer of polymer background rubber, and other raw materials preparation, colorless transparent insulated liquid. This adhesive solution and building gypsum powder made adhesives, mixture ratio is building gypsum powder: SG791 = 1:0.6 ~ 0.7 (weight ratio), the article applies to gypsum board, gypsum board and brick walls, concrete wall binding. Gypsum and gypsum binder, pressure shear strength is not lower than 2.5 MPa. Use other types of gypsum adhesive should be tested.
2.1.2.2 EC - 6 mortar adhesive: used to paste the waterproof thermal insulation kicking. With EC - 6 adhesives and made from cement, 425. EC - 6 type glue: water = 1:1 (weight ratio), mixed gel liquid cement, fine = 1, 2, 425 mixing into dry mortar, then add in adhesive solution the right consistency of EC - 6 type polymer cement mortar adhesive, the adhesive strength acuity 1.1 MPa.
2.1.3 building gypsum powder: should comply with the standard level 3 above.
2.1.4 gypsum putty: used for full wall. The following properties:
> 2. The compressive strength of 5 MPa, flexural strength > 1.0 MPa,
Bond strength > 0.2 MPa, final set time of 3 h.
2.1.5 glass fiber grid cloth, used to deal with the joints (50 mm) wide and metope Angle of additional layer (fabric width 200 mm).
In the alkali glass fiber / 8 in plastic coated mesh cloth
> 80 g/m2
Breaking strength: 25 mm x 100 mm
By the 300 n >
Zonal > 150 n
2.1.6 WKF seam putty: used for plate processing.
> 3.0 MPa compressive strength, flexural strength > 1.5 MPa, the initial setting time > 0.5 h.
2.1.7 waterproof insulation kicking: as shown in figure 9-4.
2.1.8 mainly machinery, broom, carpenter handsaw, wire brush, 2 m by feet, surgery, 2 m line with flat plate, steel rule, rubber hammer, drill, etc.
2.2 operation conditions:
2.2.1 structure acceptance, roofing waterproof layer has been completed. Metope pop-up + 50 cm elevation lines.
2.2.2 inside wall, outside doors and window, window sill board installation. The door, window and plaster.
2.2.3 plumbing and decoration engineering need of pipe clamp, furnace hook, curtain rod handle shall set aside position or buried; Electrical engineering pipeline, junction box, etc must be buried, and shall complete the wear of dark line with line of work.
2.2.4 operation place environment temperature is not lower than 5 ℃.
2.2.5 exterior wall insulation construction after the completion of the appropriate outer eaves plaster.
2.2.6 formally before the installation, try to install mold wall, identified qualified before installation.
3 the construction technology
3.1 enhance gypsum polystyrene board exterior wall insulation practice basic structure are shown in table 9 to 25.
Basic structure table 9 to 25
External wall thermal insulation structure schematic
Air layer composite thermal insulation layer
Or reinforced concrete wall
Ordinary clay brick wall
(1)
20 mm thick
(2)
50 mm
60 mm
(3)
3.2 process:
Metope to clean up - step structure, elastic line mark tube - plate and repair - card, such as furnace hook and built-in position - >
Metope stick cake and junction box, pipe clamp, and built-in to install skirting board of waterproof thermal insulation composite panels, such as installation of composite panels
Joints and the Yin and Yang Angle processing and surface decoration
3.3 construction key points:
3.3.1 structure wall cleaning: every bulge metope 20 mm mortar, concrete blocks must remove, sweep and metope.
3.3.2 rainfall distribution on 10-12 step, elastic line:
3.3.2.1 based on Windows and doors hole edge, to both sides according to the step width of 600 mm.
3.3.2.2 according to the thickness of insulating layer on top of the wall, pop-up insulation wall edge. According to the thickness of the waterproof insulation layer that play a base on the ground the pop-up waterproof thermal insulation play feet wide, and popup that play a base on the metope of flowing lines.
3.3.2.3 according to the position shown in figure 9 to 5, underlining that the point location.
3.3.3 plate, repair: according to the step plate. Composite insulation board is slightly less than the length of the roof to kick perceptible clear height size. Calculation and measurement Windows and doors hole of the upper and the lower part of the window insulation board size, and according to the size of the plate. When the length of the insulation board and wall does not adapt, should be part of the insulation board in advance splicing widened sawing (or narrow) into the appropriate width, and placed in the shade. The defective board should be repaired.
We do metope stick cake: stick cake as follows;
3.3.4.1 position in stick cake, use wire brush to brush the clean surface not less than 100 mm in diameter and water wetting, brush a 107 plastic cement slurry.
3.3.4.2 check metope smooth, vertical, find rules posted loaves of bread, and the need to set up also make a 200 mm x 200 mm grey cake.
3.3.4.3 stick cake materials to 1:3 cement mortar, phi ash cake size of 100 mm, thickness to ensure that the thickness of air layer (about 20 mm) shall prevail.
3.3.5 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.
3.3.6 paste waterproof insulation skirting board:
3.3.6.1 around skirting board inside of the top and bottom, by 200 ~ 300 mm spacing layout EC - 6 mortar adhesive bonding points, at the same time in the skirting board bottom surface and the adjacent is paste on the skirting board with scraping the adhesive side of the wall.
The skirting board of 3.3.6.2 press line paste, paste with rubber hammer knock vibration make the skirting board paste, squeeze real spell head seam, and extrusion of adhesive is clean at any time.
Shall be provided to the skirting board flowing 3.3.6.3 paste hand, board face perpendicular to guaranteed the air layer between the skirting board and structural wall around 10 mm.
3.3.7 installation of composite panels:
3.3.7.1 will be the location of the junction box, pipe clamp, and built-in accurately to the panel, and open the mouth of the cave.
3.3.7.2 composite board installation sequence should be from left to right in turn order. Plate on the side, top and bottom flush not grey, on the side of metope, end face, skirting board, the top of the composite board top, bottom and sides (all the jointing surface), ash cake surface brush a gel SG791 liquid first, then full SG791 adhesives, according to the elastic line position in place immediately. Each insulation board, except the paste on the ash cake plate in the middle should be > 10% surface area of the plum blossom shaped SG791 adhesive points directly to the wall with tape.
Installed in the flat push, with a rubber hammer knock, make all phase split face tight risk pulp, and making composite board with grey. With the top of the composite board, if not packed tightly with cracks, it with proper chocking, wedge and SG791 adhesive will be easy to fill compaction (adhesive dry retreat to chock, using SG791 adhesive tamping compaction).
The installation process, scrape to evenness with adhesive will squeeze operation at any time.
According to the above operation way to install composite board in turn. The installation process at any time with 2 m by h and feeler flatness of metope, in 2 m line plate inspection of verticality. Higher part of the rubber hammer knock on hand.
3.3.7.3 composite panels in the doors and Windows to crack in the hole with embedded fill dense SG791 adhesives.
3.3.7.4 composite board exposed in the junction box, pipe clamp, and built-in and composite board aperture openings, with embedded SG791 adhesive compact.
3.3.8 joints and the Yin and Yang Angle processing: composite panels installed 10 d, check whether all gap binder is good, with and without crack such as cracks, should be repaired after find out the reason. Has good bonding of all joints, Yin Angle seam, to clean float ash, blowing a WKF layer seam putty, paste 50 mm wide with a layer of glass fiber grid, compaction, cement, surface with a WKF joint putty leveling. All external Angle paste 200 mm wide (100 mm) each side of glass fiber cloth, the method with the plate seam.
3.3.9 adhesive preparation: adhesive to use English along with the preparation of the adhesive should be finished within 30 mm.
3.3.10 decorate panel:
After surface grinding smooth, full blown gypsum putty, dry after all needs to burnish is flat and level, finally according to the regulations of design interior surface.
4 quality standards
4.1 ensure projects:
4.4.1 enhance technical indicators of plaster polystyrene composite board must satisfy the requirements stipulated in the relevant standards.
The quality of the adhesive dispensing materials must conform to the relevant provisions.
Inspection method: inspect the product certification.
4.1.2 reinforced gypsum polystyrene composite board four side adhesive must be strong.
The method of examination: hand vibration and observation.
4.2 the basic items:
2 node structure, component location, connecting anchoring method, all should comply with the design requirements.
Inspection method: to observe the examination.
4.2.2 cement composite board all the joint should be strong, should fill close-grained, should not appear dry crack.
Inspection method: to observe the examination.
Holdings fiberglass mesh belt (cloth) should be centered along the plate seam pressure stick close together, be without buckling, become warped edge, the leakage phenomenon. Inspection method: to observe the examination.
4.3 allowable deviation projects:
Strengthen plaster polystyrene composite board installation deviation should be allowed to meet the provisions of the table 9-26.
Composite panels installed allowable deviation table 926
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 5 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, hydropower professional should closely cooperate with each, 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 water and equipment to test the waters and the rainy season construction, effective measures should be taken to prevent insulation wall be affected with damp be affected with damp and pollution.
6 should pay attention to quality problems
6.1 enhance gypsum eps composite insulation board must be drying has been basically completed contraction deformation of products. Shall not be used without drying of wet plate, to prevent the cracks and deformation.
6.2 pay attention to enhance plaster polystyrene composite board of transportation and storage. Transportation to should take put down gently, side lift side stand, and tied up with each other, shall not be carried flat. Stacking place should level off, the pad (100 mm x 100 mm, board should stand sideways, mat 50 cm away from the plate end. To prevent the plate be affected with damp be affected with damp.
Plate if there are any obvious deformation, too much can't repair the holes, fracture or serious crack, damage, shall not be used.
6.3 plate slit is the quality common fault. One way to prevent plate slit is plate joint seam binding and plate processing in accordance with the operation process operation seriously; The second is the use of adhesive must be right. Currently using adhesives, except SG791 adhesive and Ⅰ gypsum adhesive, etc. The quality of the adhesive must be qualified. Three is appropriate USES WKF joint putty processing board.
7 quality records
This technology standard should have the following quality records:
7.1 enhance gypsum polystyrene composite board quality certificate.
7.2 adhesive quality certificate.
7.3 thermal insulation wall component project quality inspection records.
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