First, rigid waterproof material construction
The construction of rigid waterproof materials mainly refers to the construction of waterproof mortar or waterproof concrete.
Rigid waterproof material refers to cement, sand, stone aggregate as raw materials, or a small amount of admixture, polymer, and other materials, through reasonable adjustment of cement mortar, concrete mix ratio, reduce or inhibit porosity, improve pore structure characteristics, It is a waterproof material of cement mortar and concrete with certain impermeability prepared by increasing the compactness between the interfaces of various materials.
Second, coating waterproof material construction
The waterproof coating (also known as coating waterproof material) is a kind of fluid or semi-fluid material, coated on the surface of the base, through the solvent or water volatilization, or the chemical reaction between the components, the formation of a certain elastic film, the surface, and water isolation, waterproof, moisture-proof effect.
The development and application of waterproof coating began in the 60s, and it is mainly an asphalt-based waterproof coating. In the last 10 years, it has developed from the traditional asphalt-based waterproof coating to the polymer-modified asphalt waterproof coating and synthetic polymer waterproof coating. Low, middle, and high-grade product series have been developed and produced.
Coating waterproof construction is divided into thin coating construction and thick coating construction according to film thickness. Thin coatings are often constructed by brushing or spraying. Thick coatings are often applied by pressing or scraping methods. Due to the different properties of the coating itself, the tools and processes used are also different. According to the needs of the project, the coating waterproof can be made into a simple coating layer or reinforced material coating (plus glass fiber cloth or chemical fiber, polyester fiber felt) into a cloth two coating, two cloth three coatings, more cloth more coating.
Third, waterproof coil construction
A waterproof coil is an important type of building waterproof material. Usually can be divided into the asphalt as the basic raw material of asphalt waterproof coil, polymer-modified asphalt as the basic raw material of polymer-modified asphalt waterproof coil, and synthetic polymer material as the basic raw material of synthetic polymer waterproof coil. The previous kind is the traditional waterproof coil, however, its fetal body material has been developed and applied, and it is still used in Chinese waterproof projects. Then two types of waterproofing roll represent the development direction of waterproofing roll, because of its superior performance, it is a new type of waterproofing roll that is developed and applied vigorously in the future.
The commonly used construction methods of coil waterproofing include the hot bonding method, the cold bonding method, the hot melt method, the self-bonding method, the mechanical fixing method; the Buried method construction, etc.
Fourth metal plate (sheet) waterproof construction
Metal plate (sheet) material waterproof is mainly used in the metal plate as the roof material, the structure layer, and the waterproof layer combined into one roof system. There are many kinds of metal plates, zinc plates, aluminum plates, aluminum alloy plates, aluminum alloy plates, titanium alloy plates, copper plates, stainless steel plates,s and so on. The thickness is generally 0.4 ~ 1.5mm, and the surface of the plate is generally coated. Because of the different materials and coating quality, its life is different, some life can reach more than 50 years; There are a variety of shapes of the production of the board, some for the composite board, that is, the insulation layer composite between the two layers of metal plate, and some for the single board; The construction of the board is different, some board in the factory after processing site assembly, some according to the needs of roofing engineering in the site processing; Some of the insulation layers in the factory compound, can also be made on site. Therefore, sheet metal roofing has various forms, from large public buildings to factories, warehouses, residential buildings, and so on.
Fifth sealing material waterproof construction
The sealing material used on the building refers to the material that is filled in the joints, cracks, door and window frames, glass edges and pipe joints or joints with other structures and plays a watertight and airtight role.
Commonly used sealing materials are mainly modified asphalt sealing waterproof materials and synthetic polymer sealing waterproof materials two categories, their performance difference is large, construction methods should be based on the specific materials, commonly used construction methods have cold embedding method and hot irrigation method of two categories.
Sixth grouting plugging material construction
Grouting plugging material construction generally refers to the slurry prepared by chemical materials, buried grouting nozzle through drilling, the use of pressure into the structural cracks, through its diffusion, solidification, to achieve waterproof, plugging, reinforcing, reinforcing purposes. It is often used to repair deep cracks in concrete structures. According to the grouting pressure and speed, can be divided into high pressure fast grouting method and low pressure slow grouting method.