Development trend of waterproof materials at home and abroad

Under the new economic situation, how should China's waterproofing membrane industry go? What new types of waterproof materials should be developed?

First, the waterproof agent consolidates the application of general-purpose waterproof agent, advocates M1500 water-based penetration waterproof agent and permanent condensate (DPS), and promotes the application of organic silicon waterproof agent and fatty acid waterproof agent. 1 Restrict the use of water repellents with high chloride ion content and prohibit the use of powdered water repellents with excessive alkali content.

Second, grouting material foundation reinforcement using cement-based grouting materials, structural reinforcement using cement-based epoxy grouting material, especially low-viscosity moisture curing epoxy grouting material, waterproof plugging using ultra-early self-leveling grouting cement and polyurethane, acrylic Salt grouting material. It is recommended to use a composite grouting process for different projects. It is best not to use poisonous and contaminated grouting materials such as acrylamide.

Third, the waterproof coating consolidate the application of polyurethane waterproof coating, polymer cement waterproof coating, cement-based waterproof coating, promote cement-based penetration of crystalline waterproof material and silicone waterproof coating, 1 development and application of spray polyurea polyurethane waterproof coating, research and application of high solid content Water-based asphalt-based waterproof coating, promotion and application of road and bridge waterproof coating and other special-purpose waterproof coating. It is forbidden to use contaminated coal tar waterproof coatings.

Fourth, sealing material consolidate the application of acrylate sealing material (middle file), and strongly promote the use of poly*, silicone, polyurethane and other high-grade sealing materials, and actively study the application of sealing material for the special primer, in order to improve the sealing material adhesion and water resistance, Durability. It is forbidden to use plastic grease, PVC cement and other sealing materials.

5. Waterproof and heat insulation materials Consolidate the application of extruded, molded polystyrene panels and mortar exterior insulation systems, and actively promote the use of spray polyurethane rigid foam waterproof insulation materials, 1 the appropriate development and application of plastic powder polystyrene insulation mortar system. Limit the use of heat-absorbing materials such as expanded vermiculite and expanded perlite. Do not use loose material insulation.

Sixth, waterproof mortar actively applied polymer cement waterproof mortar, promote polypropylene fiber (PP) and nylon fiber and wood fiber anti-crack waterproof mortar, research and application of zeolite siliceous waterproofing agent. 1 Promote the application of commercial mortar (waterproof, heat preservation, antisepsis, cementation, filling and self-flowing special mortar).