Wire rack cement sandwich wall construction
1 scope
The technology standard is applicable to civil construction steel wire rack in the cement sandwich wall construction.
2 construction preparation
2.1 materials and tools:
2.1.1 wire rack sandwich panels (GJ board) :
2.1.1.1 wire rack of the specifications of the sandwich panels (GJ) are shown in table 9 to 17.
GJ board specification table 9-17
Nominal effect size (mm) polystyrene foam
The length of the name long wide thick plastic thick inner core
(m), TZ S T, T, TZ S T TZ S (mm)
2.2 short board, 2140, 2150, 1220, 1200, 76, 70 to 50
Standard plate 2.5, 2440, 2450, 1220, 1200, 76, 70 to 50
Long plate 2.8, 2750, 2750, 1220, 1200, 76, 70 to 50
Extended plate 3.0, 2950, 2950, 1220, 1200, 76, 70 to 50
Note: 1. Other specifications can be negotiated according to user requirements.
2. "T, TZ, S ° for three types of GJ board.
2.1.1.2 galvanized low carbon steel wire, its performance indicators are shown in table 9 to 18.
2.1.1.3 mild steel wire, its performance indicators are shown in table 9-19.
Performance of the galvanized low carbon steel wire table 9 to 18
Tensile strength (N/was) diameter cold bending test repeated bending 180 ° galvanized layer quality
(mm) A (B) (g/m2)
0.02 + / - 0.05 590 ~ 590, 590 ~ 850 p 6 20 or more
Note: other properties should accord with the requirement of GB9972.
The performance of the low carbon steel wire table 9-19
Diameter (mm) tensile strength (N/was) cold bending test repeated bending 180 ° (times)
2.0 + / - 0.05 p 550 6 or higher for mesh
2.2 + / - 0.05 550 6 or higher for abdominal or silk
Note: 1. The rest of the performance should comply with the requirements of GB 343.
2. No galvanized low carbon steel wire can not be used in rock wool sandwich panels.
2.1.1.4 polystyrene foamed plastic, 15 kg/m3 density plus or minus 1 kg/m3; Flame retardant type (XR), oxygen index of 30 or more, the rest should comply with the provisions of the GB10801.
2.1.1.5 wire rack sandwich panels (GJ) technical requirements:
A. GJ board area should be no greater than the weight of 4 kg per square meter.
B. GJ board surface and appearance quality should comply with the provisions of the table 9-20.
GJ board surface and the appearance quality of table 9-20
Will the project quantity demand
1 surface clean appearance, should not have obvious oil
Don't allow outside 2 wire rust point solder joint area
3 solder joint strength applied for 300 n, or burnt
4
Solder joint quality
Note, abdomen of wire and wire mesh are not allowed to leak, sealing off; Leak mesh welding, solder joint does not exceed 8% of the number of solder joints, and should not be concentrated in one place, desoldering should not be more than 2 points in a row, 200 mm plate end segment of solder joints is not allowed to take off the welding, and virtual welding
5
Edge peach head 6 mm or less in length, plug wire peach head 5 mm or less; There can not be more than 5, become warped and steel wire of the peach haircut
6
The biggest space to 60 mm, horizontal wire mesh for more than 60 mm should add welding wire, lateral steel wire should be vertical to each other
7 foam strip local inner core of not more than three free loose, loose a single freedom must not exceed 1/2 of length
8 foam panel inner core docking board docking shall not exceed 3, shorter than 150 mm batten shall not be used
C. GJ board size to allow deviation are shown in table 9-21:
2.1.2 steel wire rack sandwich panels main parts:
2.1.2.1 sandwich panels flat-fell seam in strengthening: the note, mesh, etc.
2.1.2.2 plate end, doors and Windows opening reinforcement: slot net, note, from June, ~ 10 reinforcement, etc.
2.1.2.3 Yin and Yang Angle strengthening: Angle net, etc.
GJ board size to allow deviation table 9-21
Will project allow deviation (mm)
1 long plus or minus 10
2 5 mm wide
3 + 2 thick
4 two diagonal difference of 10 or less
Lateral bending 5 L / 650 or less
6 foam strip width is 0.5 mm
The thickness of 7 foam panel (or the whole board) plus or minus 2
8 foam filling center plane displacement of 3 or less
9 foam strip butt crack 2 or less
10 note of two longitudinal wire spacing distance or + 2
11 wire note amplitude, wavelength, or abdomen wire spacing of plus or minus 2
12 wire mesh local buckling 5 or less
13 two wire mesh center distance plus or minus 2
2.1.2.4 sandwich plate, top with the ground, walls, cylinder fittings.
U fittings: use d4.5 x L37 (mm) nail fixed or use the M5 expansion bolt. Also can punch inserts phi 6 steel fittings.
2.1.2.5 built-in parts: embedded iron, embedded wooden brick, etc., used in casing connection.
2.1.3 22, lead wire, band, etc., used in the binding of sandwich panels flat-fell seam reinforcement and fittings, tighten.
2.1.4 cement mortar:
The underlying plaster: 1:3 cement mortar, use 425 # cement, medium sand, mixed cement weight within l % of EC mortar anti-cracking agent.
Middle and finish plaster: 1:3 cement mortar, use 325 # cement, plaster, medium sand mixing cement weight 20%.
2.1.5 EC - l surface anti-cracking agent, dosage of 5 ~ 8 m2 / kg.
2.1.6 all not galvanized fittings and anchor bar, all brush anti-rust paint make antirust processing.
2.1.7 tools:
Impact drill: used for drilling with expansion bolt u-shaped fitting.
With a nail nail gun: for u-shaped fitting.
Pneumatic clamp, clamp hoop yards of special tools.
Cut the snake (or large scissors) : used to cut sandwich machine
Grinding wheel saw: 13 "frame with 12" disc, used to cut sandwich panels.
Other common tools: small power welding machine, hand drill, adjustable wrench and common construction tools.
2.2 operation conditions:
2.2.1 the main structure acceptance, roofing waterproof layer has been finished.
2.2.2 indoor pop-up + 50 cm elevation lines.
2.2.3 homework environment temperature should not be lower than 5 ℃.
2.2.4 familiar with drawings, and to detailed technical clarificaiton work shift.
2.2.5 first as sample wall, experienced qualified after large area construction.
3 the construction technology
3.1 process:
(abbreviated)
Pay-off: 3.2 according to the design of the axis of the wall, on the ground, end face, pop-up side wall of the center line and the thickness of the wall line, draw the location of the Windows and doors hole. When required by the design, according to the requirement of design and built-in position, when required by the design without clear, according to a 400 mm spacing out fitting or the position of the anchor bar.
3.3 with steel wire rack sandwich panels and accessories: according to the requirement of design with steel wire rack sandwich panels and accessories. When required by the design without clear, according to the following principles configuration:
3.3.1 partition height is less than 4 m, should be the whole board on the wall. Engineering should be done when stitching. Partition wall height or length more than 4 m, adding stiffening column according to the requirements of design.
3.3.2 rainfall distribution on 10-12 Angle of partition, the hole in the corner of the wall and door window applies a whole plate; To cut plate, should be put in the structure of walls, columns attaches; At the very edges of the plate cutting by appropriate for a whole steel wire, so that the seam with 22 lead wire bundle.
3.3.3 various kinds of form a complete set of fittings, strengthening, and built-in to complete. All galvanized iron, to brush anti-rust paint two make antirust processing.
3.4 installation wire rack sandwich panels: when design for steel wire rack installation, connection and reinforcement of sandwich panels have clear requirements, shall be carried out according to the requirements of design, when no clear requirements, construction according to the following principles:
3.4.1 track connector Settings:
3.4.1.1 walls, beams and columns is embedded on the anchor bar (typically 6, 10, phi phi for 30 d, long distance is 400 mm) should be straight, and brush antirust paint two way.
3.4.1.2 floor, roof, concrete beam, column, wall, didn't set the anchoring reinforcement, according to a 400 mm spacing buried expansion bolt with a nail or u-shaped fitting.
Fittings can also be punched steel dowel. Its method is close to the wire rack on both sides of punching and hole distance of 300 mm, 6 mm aperture, hole depth 50 mm, two rows of holes should be staggered, hole interpolation phi 6 reinforced, buried under 50 mm, on 100 mm. The inserted bar on the ground can not epoxy resin anchoring, the rest should be of black hole, with epoxy resin anchoring reinforcement.
3.4.2 sandwich very installation: installed by the position of the pay-off wire rack sandwich panels. Board and the board of the cast joint with lead wire hoop or 22nd fastened.
Rule 3.4.3 sandwich panels with all round connection:
3.4.3.1 walls, beams and columns is embedded on the anchor bar, the anchor bar with 22, galvanized iron wire and wire rack fastened, buckle not less than 3 points.
3.4.3.2 by expansion bolt with a nail or u-shaped fittings, with 22 lead wire will be u-shaped fitting with a wire rack fastened.
3.4.4 sandwich plate reinforcement reinforcement:
3.4.4.1 partition board and the board's lateral flat-fell seam with the note of reinforcement, with a hoop or 22 lead wire connected to the wire rack.
3.4.4.2 Angle of Yin and Yang, t-shaped wall Angle with Angle of mesh reinforcement, with a hoop or 22 lead wire connected to the wire rack. Yang angle-angle net total 400 mm wide, Yin angle-angle net total 300 mm wide.
3.4.4.3 sandwich panels with concrete walls and columns, the brick wall, internal Angle with the Angle of web reinforcement, Yin angle-angle net total 300 mm wide, with hoop or 22 lead wire connected to the wire rack, on the other side with concrete walls and columns fixed by steel nail or with saddle stitching and brick wall. Sandwich panels with flat seam, the concrete walls and columns together with a 300 mm wide hand web reinforcement, with hoop or 22 lead wire connected to the wire rack, on the other side with concrete walls and columns fixed by steel nail.
3.4.5 with hoop yards or 22 lead wire connection, hoop code or Mr. Point spacing is 200 mm, the plum flower form the stationing.
3.5 Windows and doors opening reinforcement reinforcement door window frame installation: when there is a clear design requirements, construction according to the requirements of design. No clear requirements, design according to the following course construction:
3.5.1 track of Windows and doors hole reinforcement reinforcement: Windows and doors each side of the mouth of the cave with long slot net and 2 phi 10 steel reinforcement reinforcement, slot net total 300 mm wide, phi 10 reinforcement length is 400 mm hole. Lower part of the hole door, 2 phi 10 reinforced with anchor reinforcement welding or expansion bolt on the floor. Humanly scaled corners, it was the top of the two horns with 500 mm long note according to 45 ° direction of double-sided reinforcement. Net and the net with a hoop or 22 lead wire connection, phi 10 reinforced with 22 lead wire binding.
3.5.2 door window frame installation: according to the installation requirements of door window frame, place on the hole in doors and Windows embedded parts, connecting the door window frame.
3.6 Ann and built-in shop, wire tube, unsteady junction box:
3.6.1 according to shop drawings requirements buried all kinds of embedded parts, wire and tube, steady junction box, etc., and requirements and the installation of the sandwich very synchronized, fixed firmly.
3.6.2 embedded parts and junction box, embedding method is according to the size of the required size to dig to polystyrene or rock wool, the dig holes in the fluid, spray a layer of EC - 1 with 1:3 cement mortar and built-in or hold the connector.
3.6.3 wire and tube and pipe USES 22, galvanized iron wire and wire rack binding firmly.
Reinforcement: 3.7 check the calibration before rendering, check detailed sandwich panels, door frames, all kinds of embedded parts, the installation of pipelines, junction box and fixed meets the design requirements. Installed wire rack sandwich panels to form a solid whole, basic flat, vertical and do it. Can not meet the requirements of the reinforcement to correction.
3.8 the preparation of cement mortar, mortar mixer mixing evenly, consistency to the right. Mortar mixture should be finished before initial setting. Has been solidified mortar shall not be used secondary water mixing.
3.9 put on one side of the bottom ash. Before you put on one side of the bottom ash, on the other side of the sandwich panels for topside appropriately, in order to prevent the sandwich plate shook with bottom ash. On the sandwich panels before rendering evenly spray a layer of EC - l surface treatment agent, then wipe the bottom ash, to strengthen the adhesive of the cement mortar and sandwich panels. According to the technological requirements of wipe the bottom ash. The thickness of the bottom ash is about 12 mm. Bottom ash to basic level off and toothed float evenly groove, facilitate and middle cement mortar. Wipe the bottom ash and then spray a layer of EC -l anti-cracking agent.
3.10 on the other side of the bottom ash: at the top of the 48 h to retreat to the other side of the bottom ash. Operation method with article 3.9.
3.11 with the middle ash, cover face ash: at the end of two layers of weak wipe to wipe after 48 h middle gray. We will strictly according to the requirements of the rendering process, that is, carefully according to the Yin and Yang Angle for party, set up the tendons, layered, finishing, surface pressure light etc process technological requirements of operation. Bottom ash, middle ash and finish a total thickness of 25 to 28 mm.
3.12 surface decoration: according to the requirements of design and construction technology of steel surface layer surface decoration.
4 quality standards
4.1 ensure projects:
4.4.1 wire rack sandwich panels, EC mortar anti-cracking agent, surface EC - 1 anti-cracking agent should comply with the design requirements and the provisions of the relevant standards.
Inspection method: inspect the factory certification examination were observed.
4. L. 2 sandwich panels with mesh reinforcement wire network connection, and wall, column, beam, roof and floor fittings or reinforced connections, and door window frame connection must be strong.
The method of examination: observation and lever.
4.1.3 plaster and plaster between layers and polystyrene board (or rock wool board) must be bonded firmly, no delaminating, empty drum and cracks and other defects.
Inspection method: tap with a small hammer and observation tests.
4.2 the basic items:
2 wire rack sandwich panels installed should level off, vertical. Binding should be strong, all kinds of mesh reinforcement, groove network should not warp.
Inspection method: to observe the examination.
4.2.2 general plaster surface shall meet the following requirements:
4.2.2.1 intermediate plaster: surface smooth, clean, if is flat and level. Clear line Angle straight (rough texture uniform).
4.2.2.2 senior plaster: surface smooth, clean, uniform color, no lines, line Angle and grey line straight founder, clear and beautiful.
The method of examination: observation and touch.
Holdings holes, slots, the size of the box are correct, is neat and smooth.
Inspection method: to observe the examination.
4.2.4 door window frame and wall body between the gap filling is close-grained, the surface is flat and level.
Inspection methods: observation, with a small hammer to tap.
4.3 allowable deviation projects; General plaster and check the allowable deviation method shall comply with the provisions of the table 9-22.
General rendering the allowable deviation and checking method of table 9 and 22
Will project allow deviation (mm) check method
Intermediate senior
1 surface is flat and level 4 in 2 m by 2 feet and wedge feeler check
Yin and Yang Angle vertical 4 2 in 2 m line board check
3 vertical facade 5 3 in 2 m line board check
Yin and Yang Angle founder 4 4 2 meters and wedge feeler check
5 finished product protection
5.1 the construction of each major type of work should be closely, reasonable arrangement of working procedure, it is forbidden to reverse process operation.
5.2 keep a transport vehicles or other objects collision wall and the door.
5.3 construction floors, should prevent splashes mortar walls.
6 should pay attention to quality problems
6.1 wire rack sandwich panels when transporting stacked to make row pile vertical row handling, prevent the plate deformation, deformation of sandwich panels to cut open to use, no bending plate on the wall.
6.2 to prevent shrinkage crack plastering, should use medium sand, sand sieving, may not be prepared with fine sand and silt content of sand slurry.
6.3 wire rack fixed with fittings, fittings, appropriate USES pneumatic clamp, U fixed. No pneumatic clamp, U, used 22 lead wire or HuoShaoSi bundle, but must be fastened, lead wire head according to ping.
7 quality records
This technology standard should have the following quality records:
7.1 wire rack sandwich panels factory certificate.
7.2 cement factory certificate.
7.3 EC - 1 face anti-cracking agent factory certificate.
7.4 partition wall component project quality inspection records.
1 scope
The technology standard is applicable to civil construction steel wire rack in the cement sandwich wall construction.
2 construction preparation
2.1 materials and tools:
2.1.1 wire rack sandwich panels (GJ board) :
2.1.1.1 wire rack of the specifications of the sandwich panels (GJ) are shown in table 9 to 17.
GJ board specification table 9-17
Nominal effect size (mm) polystyrene foam
The length of the name long wide thick plastic thick inner core
(m), TZ S T, T, TZ S T TZ S (mm)
2.2 short board, 2140, 2150, 1220, 1200, 76, 70 to 50
Standard plate 2.5, 2440, 2450, 1220, 1200, 76, 70 to 50
Long plate 2.8, 2750, 2750, 1220, 1200, 76, 70 to 50
Extended plate 3.0, 2950, 2950, 1220, 1200, 76, 70 to 50
Note: 1. Other specifications can be negotiated according to user requirements.
2. "T, TZ, S ° for three types of GJ board.
2.1.1.2 galvanized low carbon steel wire, its performance indicators are shown in table 9 to 18.
2.1.1.3 mild steel wire, its performance indicators are shown in table 9-19.
Performance of the galvanized low carbon steel wire table 9 to 18
Tensile strength (N/was) diameter cold bending test repeated bending 180 ° galvanized layer quality
(mm) A (B) (g/m2)
0.02 + / - 0.05 590 ~ 590, 590 ~ 850 p 6 20 or more
Note: other properties should accord with the requirement of GB9972.
The performance of the low carbon steel wire table 9-19
Diameter (mm) tensile strength (N/was) cold bending test repeated bending 180 ° (times)
2.0 + / - 0.05 p 550 6 or higher for mesh
2.2 + / - 0.05 550 6 or higher for abdominal or silk
Note: 1. The rest of the performance should comply with the requirements of GB 343.
2. No galvanized low carbon steel wire can not be used in rock wool sandwich panels.
2.1.1.4 polystyrene foamed plastic, 15 kg/m3 density plus or minus 1 kg/m3; Flame retardant type (XR), oxygen index of 30 or more, the rest should comply with the provisions of the GB10801.
2.1.1.5 wire rack sandwich panels (GJ) technical requirements:
A. GJ board area should be no greater than the weight of 4 kg per square meter.
B. GJ board surface and appearance quality should comply with the provisions of the table 9-20.
GJ board surface and the appearance quality of table 9-20
Will the project quantity demand
1 surface clean appearance, should not have obvious oil
Don't allow outside 2 wire rust point solder joint area
3 solder joint strength applied for 300 n, or burnt
4
Solder joint quality
Note, abdomen of wire and wire mesh are not allowed to leak, sealing off; Leak mesh welding, solder joint does not exceed 8% of the number of solder joints, and should not be concentrated in one place, desoldering should not be more than 2 points in a row, 200 mm plate end segment of solder joints is not allowed to take off the welding, and virtual welding
5
Edge peach head 6 mm or less in length, plug wire peach head 5 mm or less; There can not be more than 5, become warped and steel wire of the peach haircut
6
The biggest space to 60 mm, horizontal wire mesh for more than 60 mm should add welding wire, lateral steel wire should be vertical to each other
7 foam strip local inner core of not more than three free loose, loose a single freedom must not exceed 1/2 of length
8 foam panel inner core docking board docking shall not exceed 3, shorter than 150 mm batten shall not be used
C. GJ board size to allow deviation are shown in table 9-21:
2.1.2 steel wire rack sandwich panels main parts:
2.1.2.1 sandwich panels flat-fell seam in strengthening: the note, mesh, etc.
2.1.2.2 plate end, doors and Windows opening reinforcement: slot net, note, from June, ~ 10 reinforcement, etc.
2.1.2.3 Yin and Yang Angle strengthening: Angle net, etc.
GJ board size to allow deviation table 9-21
Will project allow deviation (mm)
1 long plus or minus 10
2 5 mm wide
3 + 2 thick
4 two diagonal difference of 10 or less
Lateral bending 5 L / 650 or less
6 foam strip width is 0.5 mm
The thickness of 7 foam panel (or the whole board) plus or minus 2
8 foam filling center plane displacement of 3 or less
9 foam strip butt crack 2 or less
10 note of two longitudinal wire spacing distance or + 2
11 wire note amplitude, wavelength, or abdomen wire spacing of plus or minus 2
12 wire mesh local buckling 5 or less
13 two wire mesh center distance plus or minus 2
2.1.2.4 sandwich plate, top with the ground, walls, cylinder fittings.
U fittings: use d4.5 x L37 (mm) nail fixed or use the M5 expansion bolt. Also can punch inserts phi 6 steel fittings.
2.1.2.5 built-in parts: embedded iron, embedded wooden brick, etc., used in casing connection.
2.1.3 22, lead wire, band, etc., used in the binding of sandwich panels flat-fell seam reinforcement and fittings, tighten.
2.1.4 cement mortar:
The underlying plaster: 1:3 cement mortar, use 425 # cement, medium sand, mixed cement weight within l % of EC mortar anti-cracking agent.
Middle and finish plaster: 1:3 cement mortar, use 325 # cement, plaster, medium sand mixing cement weight 20%.
2.1.5 EC - l surface anti-cracking agent, dosage of 5 ~ 8 m2 / kg.
2.1.6 all not galvanized fittings and anchor bar, all brush anti-rust paint make antirust processing.
2.1.7 tools:
Impact drill: used for drilling with expansion bolt u-shaped fitting.
With a nail nail gun: for u-shaped fitting.
Pneumatic clamp, clamp hoop yards of special tools.
Cut the snake (or large scissors) : used to cut sandwich machine
Grinding wheel saw: 13 "frame with 12" disc, used to cut sandwich panels.
Other common tools: small power welding machine, hand drill, adjustable wrench and common construction tools.
2.2 operation conditions:
2.2.1 the main structure acceptance, roofing waterproof layer has been finished.
2.2.2 indoor pop-up + 50 cm elevation lines.
2.2.3 homework environment temperature should not be lower than 5 ℃.
2.2.4 familiar with drawings, and to detailed technical clarificaiton work shift.
2.2.5 first as sample wall, experienced qualified after large area construction.
3 the construction technology
3.1 process:
(abbreviated)
Pay-off: 3.2 according to the design of the axis of the wall, on the ground, end face, pop-up side wall of the center line and the thickness of the wall line, draw the location of the Windows and doors hole. When required by the design, according to the requirement of design and built-in position, when required by the design without clear, according to a 400 mm spacing out fitting or the position of the anchor bar.
3.3 with steel wire rack sandwich panels and accessories: according to the requirement of design with steel wire rack sandwich panels and accessories. When required by the design without clear, according to the following principles configuration:
3.3.1 partition height is less than 4 m, should be the whole board on the wall. Engineering should be done when stitching. Partition wall height or length more than 4 m, adding stiffening column according to the requirements of design.
3.3.2 rainfall distribution on 10-12 Angle of partition, the hole in the corner of the wall and door window applies a whole plate; To cut plate, should be put in the structure of walls, columns attaches; At the very edges of the plate cutting by appropriate for a whole steel wire, so that the seam with 22 lead wire bundle.
3.3.3 various kinds of form a complete set of fittings, strengthening, and built-in to complete. All galvanized iron, to brush anti-rust paint two make antirust processing.
3.4 installation wire rack sandwich panels: when design for steel wire rack installation, connection and reinforcement of sandwich panels have clear requirements, shall be carried out according to the requirements of design, when no clear requirements, construction according to the following principles:
3.4.1 track connector Settings:
3.4.1.1 walls, beams and columns is embedded on the anchor bar (typically 6, 10, phi phi for 30 d, long distance is 400 mm) should be straight, and brush antirust paint two way.
3.4.1.2 floor, roof, concrete beam, column, wall, didn't set the anchoring reinforcement, according to a 400 mm spacing buried expansion bolt with a nail or u-shaped fitting.
Fittings can also be punched steel dowel. Its method is close to the wire rack on both sides of punching and hole distance of 300 mm, 6 mm aperture, hole depth 50 mm, two rows of holes should be staggered, hole interpolation phi 6 reinforced, buried under 50 mm, on 100 mm. The inserted bar on the ground can not epoxy resin anchoring, the rest should be of black hole, with epoxy resin anchoring reinforcement.
3.4.2 sandwich very installation: installed by the position of the pay-off wire rack sandwich panels. Board and the board of the cast joint with lead wire hoop or 22nd fastened.
Rule 3.4.3 sandwich panels with all round connection:
3.4.3.1 walls, beams and columns is embedded on the anchor bar, the anchor bar with 22, galvanized iron wire and wire rack fastened, buckle not less than 3 points.
3.4.3.2 by expansion bolt with a nail or u-shaped fittings, with 22 lead wire will be u-shaped fitting with a wire rack fastened.
3.4.4 sandwich plate reinforcement reinforcement:
3.4.4.1 partition board and the board's lateral flat-fell seam with the note of reinforcement, with a hoop or 22 lead wire connected to the wire rack.
3.4.4.2 Angle of Yin and Yang, t-shaped wall Angle with Angle of mesh reinforcement, with a hoop or 22 lead wire connected to the wire rack. Yang angle-angle net total 400 mm wide, Yin angle-angle net total 300 mm wide.
3.4.4.3 sandwich panels with concrete walls and columns, the brick wall, internal Angle with the Angle of web reinforcement, Yin angle-angle net total 300 mm wide, with hoop or 22 lead wire connected to the wire rack, on the other side with concrete walls and columns fixed by steel nail or with saddle stitching and brick wall. Sandwich panels with flat seam, the concrete walls and columns together with a 300 mm wide hand web reinforcement, with hoop or 22 lead wire connected to the wire rack, on the other side with concrete walls and columns fixed by steel nail.
3.4.5 with hoop yards or 22 lead wire connection, hoop code or Mr. Point spacing is 200 mm, the plum flower form the stationing.
3.5 Windows and doors opening reinforcement reinforcement door window frame installation: when there is a clear design requirements, construction according to the requirements of design. No clear requirements, design according to the following course construction:
3.5.1 track of Windows and doors hole reinforcement reinforcement: Windows and doors each side of the mouth of the cave with long slot net and 2 phi 10 steel reinforcement reinforcement, slot net total 300 mm wide, phi 10 reinforcement length is 400 mm hole. Lower part of the hole door, 2 phi 10 reinforced with anchor reinforcement welding or expansion bolt on the floor. Humanly scaled corners, it was the top of the two horns with 500 mm long note according to 45 ° direction of double-sided reinforcement. Net and the net with a hoop or 22 lead wire connection, phi 10 reinforced with 22 lead wire binding.
3.5.2 door window frame installation: according to the installation requirements of door window frame, place on the hole in doors and Windows embedded parts, connecting the door window frame.
3.6 Ann and built-in shop, wire tube, unsteady junction box:
3.6.1 according to shop drawings requirements buried all kinds of embedded parts, wire and tube, steady junction box, etc., and requirements and the installation of the sandwich very synchronized, fixed firmly.
3.6.2 embedded parts and junction box, embedding method is according to the size of the required size to dig to polystyrene or rock wool, the dig holes in the fluid, spray a layer of EC - 1 with 1:3 cement mortar and built-in or hold the connector.
3.6.3 wire and tube and pipe USES 22, galvanized iron wire and wire rack binding firmly.
Reinforcement: 3.7 check the calibration before rendering, check detailed sandwich panels, door frames, all kinds of embedded parts, the installation of pipelines, junction box and fixed meets the design requirements. Installed wire rack sandwich panels to form a solid whole, basic flat, vertical and do it. Can not meet the requirements of the reinforcement to correction.
3.8 the preparation of cement mortar, mortar mixer mixing evenly, consistency to the right. Mortar mixture should be finished before initial setting. Has been solidified mortar shall not be used secondary water mixing.
3.9 put on one side of the bottom ash. Before you put on one side of the bottom ash, on the other side of the sandwich panels for topside appropriately, in order to prevent the sandwich plate shook with bottom ash. On the sandwich panels before rendering evenly spray a layer of EC - l surface treatment agent, then wipe the bottom ash, to strengthen the adhesive of the cement mortar and sandwich panels. According to the technological requirements of wipe the bottom ash. The thickness of the bottom ash is about 12 mm. Bottom ash to basic level off and toothed float evenly groove, facilitate and middle cement mortar. Wipe the bottom ash and then spray a layer of EC -l anti-cracking agent.
3.10 on the other side of the bottom ash: at the top of the 48 h to retreat to the other side of the bottom ash. Operation method with article 3.9.
3.11 with the middle ash, cover face ash: at the end of two layers of weak wipe to wipe after 48 h middle gray. We will strictly according to the requirements of the rendering process, that is, carefully according to the Yin and Yang Angle for party, set up the tendons, layered, finishing, surface pressure light etc process technological requirements of operation. Bottom ash, middle ash and finish a total thickness of 25 to 28 mm.
3.12 surface decoration: according to the requirements of design and construction technology of steel surface layer surface decoration.
4 quality standards
4.1 ensure projects:
4.4.1 wire rack sandwich panels, EC mortar anti-cracking agent, surface EC - 1 anti-cracking agent should comply with the design requirements and the provisions of the relevant standards.
Inspection method: inspect the factory certification examination were observed.
4. L. 2 sandwich panels with mesh reinforcement wire network connection, and wall, column, beam, roof and floor fittings or reinforced connections, and door window frame connection must be strong.
The method of examination: observation and lever.
4.1.3 plaster and plaster between layers and polystyrene board (or rock wool board) must be bonded firmly, no delaminating, empty drum and cracks and other defects.
Inspection method: tap with a small hammer and observation tests.
4.2 the basic items:
2 wire rack sandwich panels installed should level off, vertical. Binding should be strong, all kinds of mesh reinforcement, groove network should not warp.
Inspection method: to observe the examination.
4.2.2 general plaster surface shall meet the following requirements:
4.2.2.1 intermediate plaster: surface smooth, clean, if is flat and level. Clear line Angle straight (rough texture uniform).
4.2.2.2 senior plaster: surface smooth, clean, uniform color, no lines, line Angle and grey line straight founder, clear and beautiful.
The method of examination: observation and touch.
Holdings holes, slots, the size of the box are correct, is neat and smooth.
Inspection method: to observe the examination.
4.2.4 door window frame and wall body between the gap filling is close-grained, the surface is flat and level.
Inspection methods: observation, with a small hammer to tap.
4.3 allowable deviation projects; General plaster and check the allowable deviation method shall comply with the provisions of the table 9-22.
General rendering the allowable deviation and checking method of table 9 and 22
Will project allow deviation (mm) check method
Intermediate senior
1 surface is flat and level 4 in 2 m by 2 feet and wedge feeler check
Yin and Yang Angle vertical 4 2 in 2 m line board check
3 vertical facade 5 3 in 2 m line board check
Yin and Yang Angle founder 4 4 2 meters and wedge feeler check
5 finished product protection
5.1 the construction of each major type of work should be closely, reasonable arrangement of working procedure, it is forbidden to reverse process operation.
5.2 keep a transport vehicles or other objects collision wall and the door.
5.3 construction floors, should prevent splashes mortar walls.
6 should pay attention to quality problems
6.1 wire rack sandwich panels when transporting stacked to make row pile vertical row handling, prevent the plate deformation, deformation of sandwich panels to cut open to use, no bending plate on the wall.
6.2 to prevent shrinkage crack plastering, should use medium sand, sand sieving, may not be prepared with fine sand and silt content of sand slurry.
6.3 wire rack fixed with fittings, fittings, appropriate USES pneumatic clamp, U fixed. No pneumatic clamp, U, used 22 lead wire or HuoShaoSi bundle, but must be fastened, lead wire head according to ping.
7 quality records
This technology standard should have the following quality records:
7.1 wire rack sandwich panels factory certificate.
7.2 cement factory certificate.
7.3 EC - 1 face anti-cracking agent factory certificate.
7.4 partition wall component project quality inspection records.
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