Elastomer SBS modified bitumen waterproofing membrane

Elastomer (SBS) modified bitumen waterproofing membrane reinforced waterproofing membrane has become a fast-growing waterproofing material due to its excellent physical and chemical properties and environmental protection performance. 　In the United States, TPO waterproofing membranes have accounted for 24% of the US low-slope commercial roofing material market, and maintained an average annual growth rate of more than 23%. 　In recent years, with the development of mechanically fixed single-layer roof waterproofing systems, high-performance, energy-saving, and environmentally friendly internally reinforced waterproofing membranes have also seen rapid development in China. Make it free of bubbles and wrinkles: Then use a small iron roller to roll it forcefully in sequence, and then use butyl rubber adhesive or other special adhesives to paste a 120m wide roll tape along the lap seam of the roll. Hand-held rollers are rolled to make it stick firmly. Both sides of the coiled material strips are sealed with two-component polyurethane sealing paste or one-component chlorophosphate polyethylene sealing paste. The three overlapping layers of the coil must be sealed with polyurethane sealing paste. Be closed. Waterproof coiled material d51HEDo7S elastomer (SBS) modified bitumen waterproofing coiled material for large-area sticking self-adhesive coiled material mainly has two types of spreading method and rolling method. In actual construction, the construction personnel can according to the site environment, temperature, sunshine, etc. Conditions, determine the paste method by yourself, but the basic exhaust, compaction, and anti-wrinkle requirements are still the same. 　Basic requirements: When sticking and laying roll materials, you should always pay attention to align with the reference line, so as to avoid deviations that are difficult to correct. When the roll material is laid, the roll material shall not be stretched forcefully. After pasting, immediately use a pressure roller to roll from the middle of the coil to both sides to exhaust the air, so that the coil is firmly attached to the base layer. Sticky by mistake. When the slope is lt, when the slope is 3%, it is laid in the direction parallel to the roof ridge. When the slope is between 3% and 15%, it can be used perpendicular or parallel to the roof ridge. When it is greater than 15%, it should be laid perpendicular to the roof ridge. During hot-melt construction, aim the flame spray gun (blowtorch or electric heater) with the adjusted temperature at the interface of the waterproof coiled material and the base layer at a distance of about 150mm. At the same time, quickly bake the coiled material and the base layer. When there is turbulence, roll and paste immediately and randomly compact with rubber rollers to remove air. Reference dosage: each layer/m, generally 2-3 layers are wiped. Construction on seepage surface. base surface treatment, the material preparation is the same as above. Wipe and scrape construction. If the base surface seepage is serious, firstly drill a water diversion hole at the bottom to reduce the pressure, and then construct from top to bottom. Use a dry cloth to dry the base surface and quickly use a trowel to coat the top layer. ) Spray it wet, but there should be no accumulation of water, and then use a trowel or scraper for the second layer of material. If the water is still leaking locally, add another layer until it does not leak, and then block the water diversion according to the leak-stopping construction method. When loading the material, it is necessary to use a little force and back and forth several times to make it compact, and pay attention to the overlap. Reference dosage: each layer/m. Prevention. When constructing the roof leveling layer and rigid waterproof layer, a 30mm split seam should be left at the joint of the parapet wall, and flexible sealing paste should be embedded in the seam. Leave the groove, the end of the coil should be trimmed and pressed into the reserved groove. After nailing, the groove should be filled tightly with cement mortar or sealing material. When the height of the parapet wall is lower than 800mm, the ends of the coiled material shall be directly laid on the top surface of the parapet wall, and then reinforced concrete is used for topping. Hot-melt method: Use flame spray gun or other heating tools to align the bottom surface and base layer of the coil and heat it evenly. When the asphalt on the surface starts to melt and is in a black and shiny state, the coil is laid while baking and compacted with a pressure roller. At the same time, attention should be paid to adjusting the size and speed of the flame to keep the asphalt temperature between 200-250 degrees Celsius. After the construction is completed, the lap joint should be sealed again with cold adhesive. b. Cold bonding method: Use a rubber squeegee to evenly coat the high polymer modified asphalt adhesive or cold adhesive such as Lengma Dizhi on the surface of the base layer, and control the thickness to be uniform, and use the rubber roller to spread the coil while laying the coil. In order to remove the air to compaction. The paving of sbs waterproof membrane. 　A. How to construct self-adhesive coils. 　What are the construction methods for self-adhesive coils? First of all, clean the laid base layer and apply the base layer treatment agent to the base layer. Wait until it is cool to touch without touching your hands. 　For nodes, detailed nodes, yin and yang corners, etc., strengthen waterproofing according to the specifications. 　Before laying the self-adhesive waterproof membrane, the baseline must be drawn according to the actual situation, so as to facilitate accurate positioning. 　Laying self-adhesive waterproof membrane. The scope of application of SBS waterproof membrane. 　Polyester felt base elastomer modified bitumen waterproofing membrane is suitable for roofing and underground waterproofing projects of industrial and civil buildings. 　Glass fiber reinforced polyester felt tyre base membrane is suitable for mechanically fixed single-layer waterproof, but it needs to pass the wind load test. 　Glass fiber felt base roll material is suitable for general roofing and underground waterproofing projects with stable structure. 　Exposed use of waterproof membrane with opaque mineral granular material on the upper surface isolation material. .