Elastomer bitumen waterproof membrane lap requirements are divided into synthetic polymer membrane, polymer modified asphalt membrane, and asphalt membrane. Different coils have different requirements for construction temperature. Synthetic polymer coiled material has high resistance and good low temperature performance. There is no problem in uncoiling. Different construction methods have different requirements for temperature conditions. The cold bonding method mainly considers the influence of high and low temperature on the binder. The binder of polymer coils is divided into solvent volatilization, two-component reaction curing type and hot melt type. The first two are volatilized or reaction speed at low temperature. Too slow, so it is required to apply at a temperature above 5°C, while the hot melt adhesive can be applied at -10°C.
Rampantly, taking the production of SBS modified bitumen waterproofing membrane, which is used in large quantities in the market, as an example, the profit of the enterprise is not more than 15%. There are many kinds of ultra-low-priced SBS modified bitumen waterproofing membranes on the market, which contain little SBS, or even do not add SBS, and use waste rubber powder instead. Therefore, pay attention when purchasing and try to avoid choosing products that are significantly lower than the market price. The above is the relevant knowledge about the performance of waterproofing membranes and the purchasing skills introduced by Shandong waterproofing membrane manufacturers. I hope that everyone can choose waterproof materials with excellent performance and make their houses have an excellent waterproof effect. Product price comparison. The competition for waterproof membrane products is fierce.
Waterproof membrane Y4s1tuMmp
Elastomer bitumen waterproofing membrane lap requirements common problem handling measures. Bubble, hollow. Because the base layer is wet, the leveling layer is not dry, and the moisture content is too high, which makes the coating film hollow and forms blisters. Treatment method: first cut off all the bulging parts, expose the base layer, and drain the moisture. After the base layer is dry, repair it according to the construction method of the waterproof layer. Warped edge: The end or the end of the waterproof layer has peeled from the base layer and the warped edge is mainly because the base layer has not been treated well, is not clean or dry, and the sealing process is not good when the head is closed.
At the same time, attention should be paid to adjusting the flame size and speed to keep the asphalt temperature between 200-250℃. After the construction is completed, the lap joint should be sealed with cold adhesive again. Cold bonding method: Use a rubber squeegee to evenly apply the special adhesive for polymer modified asphalt on the surface of the base layer. Then, while laying the coil, use a rubber roller to push the coil while venting the air until it is compacted. When the environment is stable and lower than 15℃, hot melt method should be used to treat the overlapping part and the winding-up part of the coil.
The upper coil covering the lower coil should not be less than 150mm, and the lap width of the short side should not be less than 150mm. In case of pre-embedded pipes and other parts, additional coiled materials must be used to reinforce the waterproof layer before laying. After the paving is completed, the waterproof membrane bonded with adhesive should be caulked with sealing material on the lap joint, and the seam should be covered with a sealing strip, and the edge should be sealed with a sealing material. External wall waterproof layer protection layer construction: After the external wall waterproof layer has passed the inspection and acceptance, and it is confirmed that there is no hidden danger of leakage, you can use adhesive to stick 5-6mm thick polyethylene foam plastic sheet or 40mm thick poly on the outside of the coiled waterproof layer. Styrofoam protective layer. When paving. The self-adhesive coiled material has HDPE on the surface, which has high tear strength, meets the requirements of puncture resistance and other requirements, and can effectively resist the damage to the waterproof system caused by the cracking of the base layer and the stress caused by deformation. The key points of construction technology. The overall laying order of coiled materials is: first high span, then low span, the same height, first far and then near, the same facade, starting from high to low. Primer: After the base surface is cleaned and passed the acceptance, apply the special base treatment agent evenly on the surface of the base layer, and apply in one direction, with uniform thickness, no leakage, no accumulation, and leave it in the air until it is not sticky to the touch.
The paving coil should master the moisture content of the base layer, and the coil should not be laid if it does not meet the requirements. At the same time, the paving should be flat, solid, tightly pressed, and firmly bonded. When the base layer is too wet, air it naturally or blow with a hot air Dry, the degree of dryness must meet the requirements, otherwise empty drums will often appear after the roll is laid. Leaks mostly occur in the details. When laying the additional layer, the additional layer should be close in place, sealed tightly, compacted, and there should be no wing edges. The paving width of the coil should meet the design requirements, and the width of the coil should not be too small.
1 Plastic APP modified bitumen waterproofing membrane: model thickness: 3mm, price: 57 yuan/m2. The above is the price of the waterproof membrane brought by the editor? The full content of the new price list of waterproof membranes in 2019. After reading this article, I believe you have a basic understanding of the price of waterproof membranes. If you want to know more information about coil prices, you can directly call us. Waterproof membrane is an important construction material in industry, common ground, roof, tunnel, highway and other places. Different space functions have different requirements for waterproofing. Next, let the waterproofing membrane manufacturer introduce to you the things that need to be considered about basement waterproofing. design. important factors to be considered in the design include the tolerance of the space used for leakage risks and the sensitivity to humidity, such as bookstores, art storage rooms, where there are computer equipment, electrical switchgear and facilities, leakage is not allowed Yes, these places also have strict requirements on humidity.
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