The traditional building waterproof material refers to the traditional petroleum asphalt felt linoleum, epoxy coal asphalt paint and other waterproof materials. This type of waterproof material has the disadvantages of being sensitive to temperature, low tensile strength and elongation, and poor aging resistance. Especially for exposed waterproof engineering, the high and low temperature properties are not good, and can easily cause aging, cracking, deformation, breakage and Phenomenon such as rot: Although this kind of waterproof material has already stipulated the waterproof practice of “three felts and four oils†in order to appropriately prolong its endurance period, it increases the thickness of the waterproof layer and also increases the labor intensity of workers, especially For a roof with a complex roof shape and a large number of roofs protruding from the roof, the construction is difficult and the quality is difficult to guarantee, which also increases the difficulty of maintenance. At present, the proportion of traditional asphalt-used tire-textile sleeves used as a waterproof layer in small and medium-sized cities is still large. Together with glass-filled felt and glass fiber felt, it accounts for about 85% of China's waterproof materials.
The new type of building waterproof material is related to traditional building waterproof materials such as traditional stone-clad bitumen felt and its auxiliary materials. Its “new†character generally has two meanings. First, the material is “newâ€, and the second is the construction method “newâ€. ". It is an effective way to improve the performance index of traditional building waterproof material and improve its waterproof function, so that the traditional waterproof material becomes a waterproof “new†material. For example, catalytic oxidation treatment of bitumen, the low-temperature cold brittle performance of asphalt has been fundamental The change made it become a high-quality oxidized asphalt. The performance of the felted asphalt felt has been greatly improved. Based on this, glass tires and glass fiber tires are used to gradually replace the paper tires, thus further conquering the low strength and elongation of the paper tires. The disadvantages of poor longevity and low oil absorption string improve the quality of asphalt linoleum.
However, it is not enough to improve the performance index of traditional building waterproof materials and improve their waterproof function to make them waterproof “new†materials. In order to improve the status quo of waterproof projects in China as soon as possible, the Ministry of Construction has adopted a series of comprehensive measures. Measures to formulate policies and regulations for the development, promotion and application of new materials for construction waterproofing and waterproof construction techniques. In the “Architecture Policy Policy†issued in 1986, it was formulated to “improve the quality of asphalt waterproof materials and waterproof coatings, develop medium and high-grade waterproof membranes, coatings, and waterproof caulking seal materials, and focus on the development of waterproof and fire prevention during the 7th Five-year Plan†period. New varieties of thermal insulation materials, comprehensively carry out research and development of applied technologies, establish and formulate product series, standards and application procedures, and in the next 10 years generally reach the international construction policy of the 1970s and 1980s. The development of new materials has pointed out the direction and development goals that have been basically achieved.
After more than 10 years of joint efforts, a large number of new types of new types of waterproof materials have been successfully developed and successively put into use, and achieved gratifying results. The new building waterproof materials mainly include synthetic polymer waterproof membranes, polymer modified asphalt waterproof membranes, waterproof coatings, waterproof sealing materials, plugging materials, and rigid waterproof materials. At present, domestic waterproof materials have basically ensured the requirements for the use of high, medium, and low grade waterproof materials in key construction projects, industrial and agricultural buildings, and other construction projects.
The new type of building waterproof material is related to traditional building waterproof materials such as traditional stone-clad bitumen felt and its auxiliary materials. Its “new†character generally has two meanings. First, the material is “newâ€, and the second is the construction method “newâ€. ". It is an effective way to improve the performance index of traditional building waterproof material and improve its waterproof function, so that the traditional waterproof material becomes a waterproof “new†material. For example, catalytic oxidation treatment of bitumen, the low-temperature cold brittle performance of asphalt has been fundamental The change made it become a high-quality oxidized asphalt. The performance of the felted asphalt felt has been greatly improved. Based on this, glass tires and glass fiber tires are used to gradually replace the paper tires, thus further conquering the low strength and elongation of the paper tires. The disadvantages of poor longevity and low oil absorption string improve the quality of asphalt linoleum.
However, it is not enough to improve the performance index of traditional building waterproof materials and improve their waterproof function to make them waterproof “new†materials. In order to improve the status quo of waterproof projects in China as soon as possible, the Ministry of Construction has adopted a series of comprehensive measures. Measures to formulate policies and regulations for the development, promotion and application of new materials for construction waterproofing and waterproof construction techniques. In the “Architecture Policy Policy†issued in 1986, it was formulated to “improve the quality of asphalt waterproof materials and waterproof coatings, develop medium and high-grade waterproof membranes, coatings, and waterproof caulking seal materials, and focus on the development of waterproof and fire prevention during the 7th Five-year Plan†period. New varieties of thermal insulation materials, comprehensively carry out research and development of applied technologies, establish and formulate product series, standards and application procedures, and in the next 10 years generally reach the international construction policy of the 1970s and 1980s. The development of new materials has pointed out the direction and development goals that have been basically achieved.
After more than 10 years of joint efforts, a large number of new types of new types of waterproof materials have been successfully developed and successively put into use, and achieved gratifying results. The new building waterproof materials mainly include synthetic polymer waterproof membranes, polymer modified asphalt waterproof membranes, waterproof coatings, waterproof sealing materials, plugging materials, and rigid waterproof materials. At present, domestic waterproof materials have basically ensured the requirements for the use of high, medium, and low grade waterproof materials in key construction projects, industrial and agricultural buildings, and other construction projects.
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