External wall insulation crack resistant glass fiber mesh cloth concrete construction steps
1. The preparation of polymer mortar must be handled by someone responsible to ensure the mixing quality.
2. Turn the lid counterclockwise to open it. Use a stirrer or other tool to re-stir the adhesive to avoid the separation of the adhesive. The mixing is moderate to avoid quality problems.
3. The compounding ratio of the polymer mortar is: KL binder: 425# sulphoaluminate cement: sand (using 18 mesh sieve bottom): 1:1.88:3.25 (weight ratio).
4. The cement and sand buckets are well-weighed and poured into the iron ash tank for mixing. After the mixing, the binder is added according to the mixing ratio, and the stirring is performed. The stirring must be uniform to avoid segregation and be porridge-like. According to workability, water may be added as appropriate.
5, water for concrete water.
6, polymer mortar should be used with the distribution, with a good polymer mortar in the best light within 1 hour. Polymer mortar should be placed in a cool place to avoid sunlight exposure.
7. Cut the mesh from the entire roll of fiberglass mesh to the required length and width in advance, leaving the necessary lap length or overlap length.
8, cut in a clean and flat place, the material must be accurate, cut mesh must be rolled up, not allowed to fold, not allowed to trample.
9. Reinforce the building at the corner of the building. The reinforcement layer should be attached to the innermost side, 150mm on each side.
10. When the first pass of polymer mortar is applied, the EPS board surface should be kept dry to remove harmful substances or impurities from the board.
11, a layer of polymer mortar scraped on the surface of polystyrene board, the scraped area should be slightly larger than the length or width of the net cloth, the thickness should be consistent about 2mm, except for the requirements of the wrapping, the polymer mortar is not allowed to be applied Polystyrene board side.
12. After the polymer mortar has been shaved, the mesh should be placed on it. The curved surface of the mesh should face the wall, and be smeared and leveled from the center to the periphery so that the mesh can be embedded in the polymer mortar. The mesh should not be wrinkled. After the surface is dry, apply a layer of polymer mortar on it with a thickness of 1.0mm. The mesh should not be exposed.
13. The overlap length of the mesh cloth shall not be less than 70mm. In the cut-off part, the patch net shall be used to make a lap joint. The overlap length shall not be less than 70mm.
14. Strengthen the layer around the door and window bulge, and reinforce the grid cloth on the innermost side. If the distance between the skin of the door and window frame and the surface of the base wall is greater than 50mm, the grid cloth and the base wall shall be pasted. If it is less than 50mm, turn over the bag. Mesh laid on large walls should be embedded on the outside of the door and window frame.
15. At the four corners of the door window, after the standard network is wiped out, a standard 200mm×300mm net is placed in the corners of the door window, placed at an angle of 90° with the bisector of the window angle, and attached to the outermost side to reinforce; A 200mm long, width-fitting mesh width standard net is attached to the inside corner and is attached to the outermost side.
16. One layer below the window sill, in order to prevent the damage caused by the impact, the reinforcing mesh should be placed first and then the standard mesh cloth should be placed. Strengthen the grid fabric to respond.
17. The construction method of the reinforcement layer is the same as that of the standard mesh.
18, the wall surface of the grid of cloth should be covered in the turn of the grid cloth.
19. Mesh is applied from the top to the bottom of the mesh and the construction of the mesh is applied to the simultaneous construction. The standard mesh is used again.
20, after the net cloth sticks to prevent the rain from flushing or hitting, easy to hit the positive angle, doors and windows should take protective measures, take the material mouth to take anti-pollution measures, and surface damage or pollution must be dealt with immediately.
21. The protective layer can not be rained within 4 hours after construction.
22. The protective layer shall be sprayed and cured immediately after final coagulation. The average temperature of day and night above 15°C shall not be less than 48 hours, and below 15°C, it shall not be less than 72 hours.
