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The soluble content of elastomer-modified bitumen waterproofing membrane is generally 400mm wide. The water-stop steel plate is generally embedded in half of the new and old concrete. How to use water-stop steel plate. When the water-stopping steel plate is in the construction of the basement, because the concrete of the bottom plate and the external wall slab are poured separately, there will be a construction joint when the concrete of the wall slab is poured next time. When the position of this joint is below the groundwater level When, it is easy to produce water seepage. When pouring the lower layer of concrete, the water-stop steel plate is pre-embedded, and the upper part of 10-15cm is exposed to the outside. When the concrete is poured next time, this part of the steel plate is poured in together to prevent the infiltration of external pressure water.
A, wall thickness, the thicker the better. Toughness, the same thickness is torn by hand, stronger is better. B, the coil is soft and elastic, easy to bend, and the edge is neat is a good coil, the coil is relatively hard and not easy to bend, it is heavy in the hand, and the edge is not neatly collected is the poor quality coil. C, use two fingers to buckle the asphalt on the coil. It can be stretched very long by pulling it elastically. It is good if it is like a rubber band. On the other hand, it is not good if it is slag.
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The soluble content of elastomer-modified bitumen waterproofing membrane is mechanically fixed construction technology for waterproofing membrane. Mechanical fixing is to use special fixing parts, such as metal gaskets, screws, metal battens, etc., to mechanically fix the coiled material and other roof-level materials on the roof base or structural layer. Mechanical fixation includes point fixation and linear fixation. The bearing capacity and arrangement of the fixed parts are strictly designed according to the experimental results and relevant regulations. Sundries and debris on the surface of the base layer. Laying a vapor barrier (polyethylene film).
It must be installed on the formwork before pouring the concrete and tamping tightly along the side of the cup. After the prefabricated gutter and water drop cup are installed, the bottom template around the cup tube must be supported. Use cement, sand and fine gravel with a mix ratio of 1:2:2 to pour and tam the concrete, leave a 20mm20mm groove along the cup wall and the top of the gutter junction and fill in the sealing material. The top surface of the drip cup should not be high. Level the layer in the gutter. See Figure 8. Additional roll material pasting method for water drop: Cut a piece of web with a width greater than or equal to 250mm, and a length of the inner diameter of the nozzle plus 100mm, roll it into a cylinder, and extend it into the nozzle for 100mm to stick firmly. Prevention. The straight spout cup of the cast-in-situ gutter exposes the coil outside the spout and cut it into a small strip with a width of 30mm. It is pasted on the surface around the spout, and then cut a piece of coil with a diameter 200mm larger than the inner diameter of the spout. In the center, cut into a rice shape according to the inner diameter of the drip cup, apply glue and stick firmly, insert the rice stick into the mouth firmly, and then pave the large waterproof layer.
There are many construction methods for waterproofing membranes, such as cold bonding method, hot air welding method, self-adhesive method, mechanical fixing method, etc. Self-adhesive construction technology of waterproof membrane. After the base layer is cleaned up, apply the base treatment agent with waterproof membrane to the base layer, and let it dry until it is not sticky to the fingers (not sticky to the feet). Reinforcement of joints: For the yin and yang corners, detailed joints and other weak waterproof parts, the waterproof treatment shall be carried out according to the specifications or design requirements. Positioning and spring line: According to the actual situation of the site, arrange the order and direction of the roll material placement, and spring the datum line according to the requirements of the salar width in the specification, so that the roll material is positioned accurately. The cold base oil should be evenly applied, and there should be no accumulation of lumps or missing application. In the construction of the roof with insulation layer, the exhaust duct and exhaust holes should be reserved strictly according to the design. Construction method. A) Bake the bonding surface of the molten coil with a hot melt spray gun. B) Cocoa rolls and the base layer can be spot-bonded or the area is determined by the slope. For small bonding, the shale should be dried and baked until the asphalt melts and covers the shale flakes, and then the overlapped rolls are baked. Should be baked and compacted.
Commonly used waterproofing membranes can generally be divided into three series: synthetic polymer waterproofing membranes, modified asphalt waterproofing membranes and asphalt waterproofing membranes according to the composition of the raw materials. Synthetic polymer waterproof membrane. The base tire used in this kind of coil is generally a mixture of synthetic rubber and resin. This kind of coil is tough, strong, heat-resistant, and corrosion-resistant, so it has a wide range of applications. This kind of coil can generally be divided into three types, namely rubber waterproof coil, plastic waterproof coil and rubber-plastic blend waterproof coil.
Waterproof coiled material is mainly used for building walls, roofs, tunnels, highways, landfills, etc. It is a flexible and flexible building material product that can be rolled into a roll to resist external rainwater and groundwater leakage. Waterproof coil The price of the material will be different because of the material, model, and specification. The following is the price list of the waterproof membrane prepared by Shandong Yuexu Building Materials for you. Self-adhesive waterproof membrane. thick. 1*20m length and width. It weighs 39 kilograms. 125 yuan/roll. Key points of waterproofing membrane construction. After continuous development and testing of waterproof materials, the final polymer cement waterproof material has a good effect and is more convenient to construct. Its retention time is also very long. Generally, there will be no problems in about 20 years. I will give you the construction essentials here. The construction should be carried out at a temperature above 5℃, and it is not suitable for construction to rain within 24 hours. Brushing should be carried out horizontally and vertically with an interval of 4h.
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