Building waterproofing has changed from simple housing waterproofing, that is, roofs, exterior walls, basements and other pure housing building waterproofing areas to highways, high-speed railways, bridges, subways, airports, wharfs, tunnels, culverts, landfill treatment, etc. Field development. Building waterproof materials are an important part of building materials. According to data from the National Bureau of Statistics, the total output value of the industry in 2012 was about 150 billion. The market share of building waterproof materials in the field of engineering construction may account for 40%-50% of total sales revenue. Waterproof materials assume the protective role of concrete. As concrete is used more in engineering construction and infrastructure, the scope of use of waterproof materials has also expanded.
Building waterproofing is related to building safety, building energy conservation, and environmental protection. Building leakage is a long-term common problem of the country's construction. The safety of the building comes from the main body of the building—reinforced concrete. Reinforced concrete itself has no waterproof function. Under long-term rain, the reinforced concrete will rust and crack, causing problems in the main function. Therefore, building waterproofing is very important to the main body of the house. Building waterproofing is also related to building energy conservation. Building energy conservation is our country's national policy. Any thermal insulation material will have a very large discount in its performance when exposed to water and moisture. Building waterproofing is also related to environmental protection, including waste landfill, environmental treatment, including tailings treatment and other industries require waterproofing.
The awareness of the importance of building waterproofing continues to increase. In the country, only two products in building materials require a national administrative license: 1. Cement (related to the safety of the main structure of the building), 2. Waterproof building materials (protecting the main structure of reinforced concrete from damage). As a concealed project, building waterproofing is not exposed, and its importance was not recognized in the past. The investment of 4 trillion yuan has led to the massive use of waterproof materials in highways, high-speed railways, airport terminals, landfills and other projects. People's awareness of the importance of waterproofing continues to increase.
The product structure is mainly waterproof coiled materials, supplemented by waterproof coatings. Coil materials account for 70% of the industry's products, and coatings account for 30%. The main materials are mainly coils, and the coils also include SVS and self-adhesive coils and polymer coils. These new products are the future development trend.
