On-site molded waterproof and heat-insulating material and construction method thereof

Abstract

The invention provides an on-site molded waterproof and heat-insulating material and a construction method thereof. The waterproof and heat-insulating material is formed by quantitatively mixing and packaging 50-70% of cement, 20-49% of silica powder, 1-5% of anti-tensile fiber and 0-1% of additive into dry powder components, quantitatively packaging polymer emulsion into a liquid component, and mixing and agitating the dry powder and the polymer emulsion on site according to the ratio of (1-2.5): (0.5-2.5), wherein the polymer emulsion is one or a mixture of more of ethylene-vinyl acetate copolymerized emulsion, pure acrylic emulsion, styrene-acrylic emulsion, silicone acrylic emulsion and aqueous polyurethane emulsion. According to the on-site molded waterproof and heat-insulating material and the construction method thereof, provided by the invention, the waterproof function and the heat-insulating function are combined into one and the construction is carried out by utilizing a continuous coating way; the system is intact and a seamless connection is used, so that the reliability of the heat-insulating and waterproof performance is high, the construction is simple and convenient, and the cost is low; and the on-site molded waterproof and heat-insulating material with a certain thickness and good ageing resistance and wear resistance can be formed.

Description

technical field [0001] The invention relates to a continuous and jointless composite waterproof and heat insulation which is applied to building roofs, walls, indoors, basements, pools and culverts to resist water leakage and has the function of heat insulation and thermal insulation. Insulation materials and their construction methods. Background technique [0002] At present, building waterproof mainly adopts waterproof coiled material or polymer cement waterproof coating to carry out waterproof fortification. Membrane waterproofing is a traditional type of waterproofing. After gradually improving asphalt linoleum, modified asphalt and polymer polyurethane, the waterproof performance has been continuously improved, but due to the objective limitations of the physical shape of the membrane, no matter how it is improved, it cannot change its congenital deficiency. , its disadvantages are as follows: (1) The waterproof membrane is a prefabricated sheet material, which needs ...

AI Technical Summary

Problems solved by technology

Membrane waterproofing is a traditional type of waterproofing. After gradually improving asphalt linoleum, modified asphalt and polymer polyurethane, the waterproof performance has been continuously improved, but due to the objective limitations of the physical shape of the membrane, no matter how it is improved, it cannot change its congenital deficiency. , its disadvantages are as follows: (1) The waterproof membrane is a prefabricated sheet material, which needs to be cut and spliced ​​according to the site terrain when it is applied to the construction site. Once an omission occurs, it may lead to the failure of the entire waterproof system. It is difficult to find the leak point during repair, and the repair cost is high; (2) Although high-grade waterproof coiled materials have excellent durability, there are still few domestic adhesives that match it. Due to factors such as the environment and the bonding material itself, the bonding function is often lost in advance, resulting in waterproof failure; (3) It is very important to prevent the exposed waterproof layer from external mechanical damage, whether it is full paving or spot paving , Strip paving or empty paving, there will be a water-permeable layer between the coiled material and the base layer. Regardless of any penetrating damage or degumming of any part, the waterproof function of the continuous layer will be lost. If the damage and defect cannot be found, It is impossible to carry out partial repair, only to redo the entire waterproof layer; (4) For those waterproof layers with concrete protective layer, although external mechanical puncture does not occur, such as the part along the ditch is not suitable for further protection, while the parts along the ditch Due to sewer blockage and other reasons, it is more likely to accumulate water for a long time. During this period, the water tightness of the waterproof layer must not have the slightest defect. Therefore, the probability of successful waterproofing of the coiled material along the ditch is low. It is very difficult to seal the water hole and the water outlet. These are the technical difficulties of waterproofing the membrane; (5) The construction of the membrane is limited by environmental factors and has high waterproof requirements, so the construction is difficult, the construction cost is high, and there is pollution environmental problems

[0003] Waterproof coatings are emerging environmentally friendly waterproof materials (mainly represented by polymer cement waterproof coatings) that have developed rapidly in the past ten years. They apply waterproof slurry to the base of buildings by on-site brushing to form a continuous waterproof film. It effectively overcomes the defects in the physical structure of the waterproof membrane. Due to the use of water-soluble raw materials, its environmental protection and construction convenience are better. The construction with water is not limited by the environment. It is not only easy to construct, but also has reliable waterproof performance. It must be painted several times and it is a thin film waterproof (generally by brushing, the film thickness does not exceed 2mm), the material has insufficient anti-ultraviolet aging performance, cannot be stepped on and wear-resistant, and has a relatively short service life, which cannot meet the requirements of roofs and pools. Such as the requirements of open air and high weather resistance environment

[0004] With the implementation of the national building energy-saving policy, buildings not only require waterproof materials to have waterproof functions, but also hope that waterproof materials can also have thermal insulation properties. However, existing building waterproofing and thermal insulation generally use single-function waterproof and thermal insulation materials. Waterproofing and thermal insulation must be constructed using materials separately. Not only is the process cumbersome and the materials are complicated, but the construction cost is also high

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