Polyethylene dacron coiled material-cementitious capillary crystalline waterproofing construction method

Abstract

Disclosed is a polyethylene dacron coiled material-cementitious capillary crystalline waterproofing construction method. Applied materials include polymer rubber powders, common silicate 42.5 cement, cementitious capillary crystalline waterproofing coatings, polyethylene dacron water-proof coiled materials, early strength antifreezing agents and water. The construction method includes rubber cement preparing, working face cleaning, primary cementing, natural drying, secondary cementing, coiled material paving and maintaining. Advantageous performances of the polyethylene dacron coiled materials and the cementitious capillary crystalline waterproofing coatings are combined, most of upstream face water or other fluids can be baffled, cementing materials meet water to form a crystalline rigid water-proof layer, and the comprehensive water-proof effect can reach an extra high level. The polyethylene dacron coiled material-cementitious capillary crystalline waterproofing construction method has the advantages that the structural strength is high, the surface layer extensibility is good, the service life is long, the water-proof performance is good, the construction is convenient, rapid and simple, the method is suitable for being massively popularized and applied, limit of operating environment is small, resistance to high temperature and low temperature can be achieved, and the water-proof effect is quite good.

Description

technical field [0001] The invention relates to the processing technology related to international patent classification C04B cement or similar building materials, especially the polyethylene polyester coiled material-cement-based permeable crystallization waterproof construction method. Background technique [0002] Polyethylene polyester waterproof membrane is a new type of polymer waterproof material, which has good flexibility, ductility, temperature deformation resistance, water impermeability and high tensile strength of the membrane. The traditional operation method is: use special rubber powder , cement, water, etc. are mixed according to a certain proportion of adhesive glue, and the adhesive glue is applied to the waterproof base layer and the coiled material to bond to form a waterproof layer. [0003] After engineering construction practice, it was found that there are many defects in the above method, such as: warped edges and corners are inevitable after the co...

AI Technical Summary

Problems solved by technology

[0006] However, cement-based permeable crystalline waterproof coatings also have some shortcomings. This material has relatively high requirements on working conditions: when the indoor and outdoor temperatures are too high or the air velocity is fast, the waterproof coating layer is prone to premature solidification and cracking or obvious temperature. Cracks; when the waterproof base layer is too dry, the water in the waterproof coating is absorbed by the base layer, resulting in the loss of water in the waterproof coating, the hydration heat reaction of the cement cannot be fully completed, and the waterproof crystallization is insufficient; when the working environment is below 0 ° C negative temperature The hydration heat reaction of cement cannot be completed within 7 days, resulting in insufficient strength of the waterproof layer and insufficient number of internal microcrystals

Images