Brief introduction of flexible waterproof material
Flexible waterproof materials are mostly organic materials such as asphalt and linoleum, also known as linoleum coiled material waterproof layer. It is a waterproof layer formed by using linoleum, glass cloth and other fiber fabrics as the tire layer and using various cementing materials such as asphalt to bond the coiled material and leveling layer to the roof structural plate. Flexible waterproof material has the characteristics of high tensile strength, high elongation, light weight and convenient construction, but the operation process is strict. Puncture resistance and aging resistance are not as good as those of hard materials, so it is easy to age and has a short service life.
What is a flexible waterproof material? Flexible waterproofing blocks the passage of water through flexible waterproof materials (such as coiled material waterproofing and coiled material waterproofing), so as to achieve the purpose of building waterproofing or increasing anti-leakage ability. The most widely used flexible waterproofing material is SBC 120 polyethylene polypropylene composite waterproofing membrane. Since petroleum asphalt felt, building waterproof material has a history of 130 years. At present, the available waterproofing membrane products in the world are divided into tire-based petroleum asphalt felt, synthetic polymer modified asphalt membrane and synthetic polymer sheet. Synthetic polymer sheets are divided into rubber and plastic, and into uniform cross-section and reinforced materials.
Generally speaking, the reinforcement is an internal reinforcement structure to make up for the lack of tensile strength of materials. It is difficult to combine the smooth surface of the material with the surface of the building structure characterized by cement firmly and stably. When the water content is higher than 9%, the bonding effect is greatly reduced. It is difficult to build a concrete structure on the surface of the constructed coiled material.
In order to stabilize the waterproof engineering structure, it is necessary to directly combine the surface of waterproof coiled material with cement material to obtain a stable waterproof structure which is convenient for construction. Polyethylene polypropylene double-sided composite waterproofing membrane with rough surface. This technology has been patented by China 1992, and has been widely used in construction, water conservancy, chemical industry and environmental protection projects. The annual application amount exceeds 3 million square meters, and good engineering application effect has been achieved.
Application advantages of flexible waterproof materials
1) solves the problem that most organic waterproof coiled materials cannot be directly bonded with cement materials;
2) There are no restrictions on the construction requirements of most organic waterproofing membranes, and the water content of the building base is low. (3) The utility model solves the problem that the main waterproof material of the organic waterproof coiled material is easy to be damaged and aged when exposed.
4) Some waterproof coiled materials have no problems such as open flame construction and environmental pollution;
5) The waterproof system gets rid of the method of solely relying on waterproof materials to undertake all waterproof functions, which reduces the consumption of organic materials and engineering costs and improves the waterproof effect.