Traditional building waterproofing materials and new building waterproofing materials?

Traditional building waterproofing materials refers to the traditional petroleum asphalt paper tire linoleum, epoxy coal asphalt coating and other waterproofing materials. This kind of waterproof material exists on the temperature-sensitive, tensile strength and elongation is low, aging resistance is poor: especially for exposed waterproofing project, high and low temperature characteristics are not good, easy to cause aging, dry cracks, deformation, fracture and decay and other phenomena: this kind of waterproof material at present, although it has been stipulated in the "three felt four oil" waterproofing practices to Appropriate to extend its durability, but increased the thickness of the waterproof layer, but also increased the labor intensity of workers, especially for the complex shape of the roof, protruding out of the roof part of the roof, construction is very difficult, the quality is also difficult to ensure that it also increases the difficulty of repair and maintenance. At present, the traditional petroleum asphalt paper tire sleeve felt in small and medium-sized cities used as a waterproof layer is still a large proportion, together with the glass cloth tire linoleum, fiberglass tire linoleum, accounting for about 85% of China's waterproof materials.

New building waterproofing materials is relative to the traditional stone sleeve asphalt felt and its auxiliary materials and other traditional building waterproofing materials, its "new" word generally has two meanings, one is the material "new", the second is the construction methods "New". Improve the performance indicators of traditional waterproof building materials and improve its waterproofing function, so that traditional waterproofing materials become waterproof "new" materials, is a proven way, such as catalytic oxidation of asphalt, asphalt, low-temperature cold brittleness performance has been fundamentally changed, so that it becomes a high-quality oxidized asphalt, asphalt felt paper tires have been greatly improved, on the basis of this, the performance of asphalt felt. Has greatly improved, on the basis of glass cloth tires and glass fiber tires to gradually replace the paper tires, thus further overcoming the low strength of the paper tires, poor elongation, oil absorption string of low shortcomings, improve the quality of asphalt linoleum.

But only by improving the performance indicators of traditional waterproof building materials and improve its waterproofing function, so that it becomes waterproof "new" material is not enough, in order to improve the status quo of waterproofing projects in China as soon as possible, the Ministry of Construction has taken a series of measures to comprehensively manage the development, promotion, and application of waterproofing construction of new materials And waterproof construction of new technology policies and regulations. Issued in 1986, "building technology policy" formulated to "improve the quality of asphalt waterproofing materials and waterproof coatings, the development of medium- and high-grade waterproofing roll-roofing materials, coatings, and waterproofing joints and sealing materials," the "Seventh Five-Year Plan" focus on the development of waterproofing, fireproofing, insulation materials, new varieties of new materials, and to carry out the full range of application of technology research and development work, the establishment and development of the waterproofing technology. Research and development of application technology, the establishment and development of product series, standards and application procedures, after 10 years generally reach the international level in the 70s and 80s" of the construction waterproofing policy for the development of new waterproofing materials for China's buildings pointed out the direction and development goals, these goals have been basically realized. After more than 10 years of *** with efforts. A large number of varieties, a complete range of new waterproofing materials have been successfully developed and put into use one after another, has made gratifying achievements.

New building waterproofing materials are mainly synthetic polymer waterproofing membrane, polymer modified asphalt waterproofing roll-roofing and waterproof coatings, waterproof sealing materials, plugging materials, rigid waterproofing materials. At present, domestic waterproof materials have been able to basically guarantee the national key projects, industrial and agricultural buildings and other construction projects on the use of waterproof materials of different grades of high, medium and low requirements.

More about the engineering/service/procurement category of the tender writing production, enhance the winning rate, you can click on the bottom of the official website customer service free consultation:/#/?source=bdzd