Silicon PU course construction technology
Hits: 845
img
Silicon PU course ground foundation thickness requirements:
The cement foundation is more than 10cm; the asphalt foundation is more than 8cm, which can ensure the solidity of the ground.
Kang nano-silicon structure, role:
Sealing Primer: Sealing the foundation hole of the ground to improve the foundation density and enhance the adhesion between the base surface and the adhesive layer.
Elastic layer: Form the thickness of the site to ensure the elasticity of the surface layer.
Stabilization layer: to ensure the leveling of the site, anti-aging, and strengthen the ability to bond with the topcoat.
Surface layer: to ensure the site's anti-aging, anti-cracking, anti-freeze, wear resistance, bright colors.
Construction process
1. Basic inspection: The flatness requires 3m ruler to allow error of 3mm; check that there is sufficient strength and compactness, no cracks, delamination, powdering and so on. There are drainage clearing ditch around to ensure smooth drainage, the foundation floor is to find 5 坡 slope, and meet the design requirements. It is required to reserve temperature expansion joints, generally according to vertical and horizontal 6mm, width 4mm, depth 3mm slit to prevent thermal expansion and contraction. Causes cracking of concrete.
2. Pickling base: Sprinkle and wash the foundation with 5% or so of diluted hydrochloric acid, then rinse off with water. Observe the remaining water marks, test the flatness and slope of the base surface, and mark the water with a marker. After cleaning and drying, the base surface should be free of white powder and floating objects.
3. Sealing and caulking: After the base layer is completely dry, the obvious protruding part is polished, the expansion joint is cleaned, and the nano-silicon PU filling glue is used to fill the expansion joint, and the nano-silicon PU sealing glue is used to partially recess the part. Repair the parts. It acts to close the pores of the cement base surface and improve the bonding strength between the rubber layer and the cement base surface, so that it is not easy to delaminate and generate bubbles.
4. Elastic layer construction: The construction of this layer is carried out by thin coating and multiple passes. This layer of material was applied to the base surface using a toothed trowel. After the material is solidified, the surface flatness is tested by the accumulated water method, and the layer is repaired and flattened with water. If there are any impurities on the surface, it needs to be ground with a grinder and then be processed in the next process.
5. Stable layer construction: When the elastic layer material is solidified, the stable layer material is applied in time to ensure that the two layers of materials are firmly bonded.
The construction method of the stable layer is the same as that of the elastic layer. After curing, the surface is required to be smooth and smooth. If any impurities are mixed or uneven, it needs to be corrected and smoothed before the next process can be carried out.
6. Surface layer construction: Add special anti-slip powder to the nano-silicon PU topcoat material, stir the material thoroughly and then use roller construction.
7. Draw line: According to the standard size standard of the course during construction, draw the boundary position, stick it with the textured paper along both sides of the boundary line, directly apply it with a small brush, and brush it one or two times at the position of the marking line. After tearing off the textured paper.
8. Construction acceptance: no delamination, foaming. The thickness of the surface layer should meet the requirements of the design and related specifications. The surface is flat and there is no large area of water after the rain. The course line should be clear and not reflective, straight and smooth.
发送反馈
历史记录