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Construction technology of non curing rubber asphalt coating
Main material preparation 1. PET membrane self-adhesive waterproof roll
1) Perfect combination of super adhesion and base;
2) Cement paste bonding, safety and environmental protection;
3) Simple construction and convenient operation;
4) High cost performance, wide range of use;
5) There is no water breakthrough, even if it is punctured, it is not easy to have seepage point, so it is convenient for maintenance.
2. Non curing rubber asphalt waterproof coating
1) The product is not solidified, and has strong bonding performance with the base, which improves the waterproof and impermeability performance of the construction project.
2) The film has a high elongation, and has a strong adaptability to base cracking or expansion, and will not transfer the base stress to the coiled material layer, so as to solve the problem of zero elongation.
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3) It can form composite waterproof structure with other waterproof rolls.
4) It can be applied by spraying or scraping, which is easy to operate.
5) The product can well adapt to the deformation of the base course, close the micro cracks of the base course, and prevent the occurrence of water channeling.
Waterproof construction
（1） . process flow
Base treatment → brush base treatment agent → hot melt non curing rubber asphalt waterproof coating → brush non curing rubber asphalt waterproof coating → strong treatment of nodes → large surface paving of pet self-adhesive roll → slurry lifting and air exhausting → lap edge sealing → roll closing and sealing → inspection and acceptance
（2） Construction method 1. Base treatment: the base surface shall be solid, flat, dry, clean and free of dust and oil, and the corner shall be made into a 50 mm × 50 mm angle or a 50 mm radius fillet. Gold Emulsion
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▲ xuanhuang waterproof ▲ Jiayuan machinery 2. Brush the base treatment agent: evenly brush the base treatment agent on the qualified base, fully mix the treatment agent before painting, and the coating shall be uniform in thickness, without bottom leakage and accumulation, following the principle of first high and then low, first elevation and then plane. When the applied base treatment agent is dry, the self-adhesive roll can be paved.
3. Hot melt non curing rubber asphalt waterproof coating: before construction, the non curing rubber asphalt waterproof coating shall be placed in the heating tank to be heated in a liquid state, and the construction can only be carried out when the specified heat use temperature is reached. The heating temperature of manual scraping coating shall be ≥ 120 ℃, and the spraying temperature shall be ≥ 150 ℃
4. Construction of non curing rubber asphalt waterproof coating: evenly apply the non curing rubber asphalt waterproof coating in the heating tank to the base course by scraping or spraying, with a thickness of 1mm. Roll the TPE self-adhesive membrane waterproof roll within 3 minutes after scraping the non curing rubber asphalt waterproof coating, then gently scrape the surface of the roll, exhaust the internal air, and make the roll and non curing rubber asphalt waterproof coating The materials are firmly bonded together.
5. Strengthening treatment of nodes: strengthen the layer at the nodes (such as internal and external corners, construction joints).
6. Lay 1.5mm thick pet self-adhesive waterproof roll on the large surface: remove the isolation membrane on the lower surface of the pet self-adhesive waterproof roll, and lay the pet roll on the base of the applied waterproof coating (while applying the waterproof coating, while laying the pet self-adhesive waterproof roll). Leave a 0.5m stubble length above the basement top, and take protective measures to cover it.
7. Slurry lifting and air exhausting: beat the surface of the coiled material with a wood trowel or rubber plate, lift the slurry, discharge the air under the coiled material, and make the coiled material and the non curing rubber asphalt waterproof coating closely fit.
8. Lap bonding of long and short sides: according to the site conditions, lap bonding can be carried out when paving coiled materials. During lapping, the transparent isolation membrane at the overlapping part of the coil at the lower layer shall be lifted, and the upper coil shall be laid and pasted on the lower coil, and the overlapping width of the coil shall not be less than 100mm.
9. Sealing end of waterproof coiled material: the end of coiled material shall be fixed with metal strip and steel nail, and then sealed with sealing paste. The closing of coiled material shall be 500 mm higher than the outdoor floor.
（3） Method of each node
1. The method of the additional layer of internal and external corners is as follows, the total width of the additional layer is 500mm, 250mm on each side.
2. The construction method of basement external wall paving and top waterproof stubble rejection is required to be 150 mm in the atlas. Considering the staggered joints, the length of stubble rejection is determined to be 500 mm.
Precautions: 1. The oily base treatment agent must be applied, and the base treatment agent can only be applied and scraped after it is completely dry. 2. The construction can only be carried out when the non curing rubber asphalt waterproof coating melts into liquid state and the specified heat use temperature. 3. While scraping the non curing rubber asphalt waterproof coating, roll the pet self-adhesive membrane waterproof roll, and pay attention to the bonding effect of the lap edge of the roll. 4. Before the construction of the waterproof layer, all kinds of pipes and embedded parts must be installed and fixed to avoid drilling holes and damaging the waterproof layer after the construction of the waterproof layer, leaving potential leakage. 5. When the wide pet waterproof roll is paved, it shall be temporarily sealed at the end of the roll (sealed with tape or thickened cement mortar) to prevent the excessive water loss at the end of the vertical wall. 6. The short side joints of the adjacent two rows of coiled materials shall be staggered by more than 1 / 3 of the auxiliary width, and one side of the multi-layer joints shall be overlapped to make the coiled materials paste unevenly. 7. When the side wall listed company wide pet coil, it can be supplemented with appropriate fixing measures at the corners. 8. In case that the coil part is polluted during construction, clean the coil with clean wet cloth, etc.
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