The low-temperature flexibility test video of elastomer waterproofing membrane is installed with the grid strips according to the requirements of the specification, and the grid is set to 4000 mm 4000 mm. Then sprinkle water to make the base surface moist, but there must be no standing water. , according to the order from far to near, high first then low, the prepared mortar or fine stone concrete shall be divided into grids one by one, and the same grid shall be completed at one time, smoothed and compacted. , after the initial setting, take out the divided wooden strips, calender and trim the divided seams. , use flexible sealing material to inlay and fill the slits, and the treated surface is closed.
It has also been continuously recognized by users as an alternative waterproofing membrane. Roofing waterproofing is a necessary process in house construction projects. Roofing waterproofing often uses waterproofing membranes. There are many types of roofing waterproofing membranes and it is difficult to choose. So which roofing waterproofing membranes are better? Next, the editor of Shandong Yuexu Building Materials will give you an introduction. In the prevention and control of roof water leakage, we should vigorously promote the application of new waterproof membranes, and try to use advanced technology and better performance polymer modified asphalt membranes and coatings, and elastic-plastic sealing membranes. The practicability of self-adhesive waterproofing membranes is becoming stronger and stronger. Synthetic polymer membranes and coatings, as well as new rigid waterproofing membranes.
Waterproof membrane M0oj7P0QR
After the detailed nodes of the low-temperature flexibility test video of elastomer waterproofing membrane are processed, a large area is fully glued and covered with platinum high-performance elastomer modified asphalt waterproofing membrane + sand surface modified asphalt waterproofing membrane (a single layer of platinum can also achieve the waterproof effect ). Hot-melt lap joints: the lap joint coils must be uniform and fully baked, and the asphalt between the lap joints must be tightly fused, and the molten asphalt will naturally overflow from the edges to ensure the sealing and waterproofing of the joints Function, protect the waterproof layer after self-inspection and acceptance.
Synthetic polymer waterproofing membrane is based on synthetic rubber, synthetic resin or a blend of the two, adding appropriate chemical additives and fillers. Processed by different procedures to form a crimpable sheet-like waterproof material, or combine the above-mentioned materials with synthetic fibers to form two or more layers of crimpable sheet-like waterproof material. What is a good material? What is bad material? This is a frequently encountered problem. The following analyzes from 5 aspects. The physical properties of waterproof materials are better.
Compared with the traditional waterproof board, the welding construction of many polymer waterproof materials is beneficial to reduce the channeling of water. The waterproofing materials currently on the market are mainly divided into four types: waterproofing membranes, building waterproofing membranes, rigid waterproofing materials and building sealing materials. Today we will first talk about a kind of waterproof material: waterproof membrane. First of all, what are the advantages of waterproof membranes. Convenient construction, short construction period, no need to maintain after forming, not affected by temperature, low environmental pollution, easy to master the layer thickness according to design requirements, accurate calculation of materials, convenient construction site management, not easy to cut corners, and uniform layer thickness. When the hollow paving is constructed by the mining method, it can effectively overcome the stress of the base layer (it can maintain the integrity of the waterproof layer when the base layer has large cracks). In order to reduce the loss of grout, the grouting pressure should be 3~5 times of the pressure head pressure of the concrete at the crack. If necessary, a step-up method can be used. In addition, in order to avoid the phenomenon that the single-liquid grouting is easy to block the pump and the pipe, the double-liquid grouting method can be used to improve the anti-seepage and leak-stopping effect. Waterproof membrane construction technology. The current new type of waterproof membrane construction technology, the waterproof membrane used is usually polyurethane coating, this material is a multifunctional polymer synthetic material, after coating, it can quickly chemically react with water or moisture in the air. It is cured into a highly elastic waterproof membrane to achieve the effect of waterproofing and blocking.
In terms of waterproof construction, it is more convenient to operate. After nearly ten years of development, great changes have been made in the design of waterproofing projects, coil quality and construction. The use of waterproofing membranes has undergone many clear subdivisions, and the waterproofing requirements of each part of the building have increasingly specific rules. Of course, there are still a proper number of problematic waterproofing membranes in the waterproofing membrane market in my country, all of which are under standardization and are developing in a good direction. Lap length between the upper and lower layers of the waterproof membrane.
Match the importance of the building. High-quality and high-priced SBS modified bitumen waterproofing membranes and EPDM waterproofing membranes are good materials for first- and second-class buildings, and they are material materials for low-end buildings. Such as construction sheds, short-term warehouses, disaster relief sheds, etc., to be demolished after one or two years, the use of high-quality materials is a waste. Pay attention to the operability of construction. Some waterproofing membranes have good physical properties, but they are difficult to construct and operate. Such as anti-adhesive coiled materials, it is difficult to seal the joints, and powdery materials are difficult to spread evenly, and it is more difficult to seal them when exposed or spread. Rain, snow, frost, fog, or excessive atmospheric humidity, and windy weather are not suitable for outdoor operations, otherwise appropriate technical measures should be taken. Requirements for roof drainage slope. The drainage slope of a flat roof is 2% to 3%. When the slope is less than or equal to 2%, materials should be used to find the slope. When the slope is greater than 3%, the structure should be used to find the slope. The longitudinal slope of the gutter and eaves shall not be less than 1%, and the drop at the bottom of the gutter shall not exceed 200mm. The slope within 500mm of the diameter of the water drop shall not be less than 5%.
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