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What is the tensile strength of the elastomer waterproofing membrane. Waterproof membrane performance. Solid content. Solid content refers to the proportion of solids contained in the waterproofing membrane. Since the solid content of the paint is applied to form a coating film, the solid content is closely related to the thickness of the film and the quality of the coating film. Heat resistance. Heat resistance means that the waterproof membrane does not soften and deform under high temperature after the waterproof membrane is formed. Non-flowing performance, that is, high temperature resistance. Flexible. Flexibility refers to the ability of the membrane layer of the waterproof membrane to maintain flexibility at low temperatures.
The welding between the two steel plates should be full and double-sided, and the steel plate overlap should not be less than 20mm. The treatment of the corners of the wall, the whole steel plate is bent, T-shaped welding, 7-shaped welding. The support welding of the water-stop steel plate can be welded to the main reinforcement with small steel bars. When the water-stop steel plate passes through the column stirrups, the passed stirrups can be disconnected, made into an open hoop, and electric welded on the steel plate. The opening of the water stop steel plate faces the water surface.
Waterproof membrane WQbTE445h
What is the tensile strength d of the elastomer waterproofing membrane, double-layer waterproofing, and the joints of the membrane must be staggered according to regulations. E, the hot melt construction method should not be used when the thickness of the coil is less than 3mm or the cladding material is aluminum film. Thermal bonding method. A. Melt the oxidized asphalt or SBS modified asphalt in a melting kettle, and the temperature is controlled at 180°C to 200°C. B. Pour the melted binder into the bucket, then lift it to a predetermined position and pour it on the base layer, and apply it evenly as required. C, quickly heat the roll material to the base layer, the vertical and horizontal lap edges are 250px, and it is advisable to seal with thermal adhesive.
As for the price of waterproof membranes, not only will it be affected by types, specifications, and models, but also different brands and materials have different prices, so they cannot be generalized. So under normal circumstances, what are the prices of different materials and specifications? The price of waterproof membranes of different materials: the prices of waterproof membranes vary greatly. For example, the more commonly used polymer self-adhesive membranes are taken as an example. The 4mm thick polyurethane PE mould -25 degree polymer self-adhesive waterproof membranes are generally around 20-25 yuan/square meter.
Polymer waterproof membrane paving. When laying polymer waterproof membranes. First place the polymer waterproof coiled material in the paving position for 3 to 12 meters (underground engineering can be pre-placed 2-3 meters), and fix it in the middle. After the pasting is completed, the other end of the pre-placed roll is rolled back to the pasted position, and the paving is continued until the entire width is completed. Laying method: apply the cement glue to the base layer (leveling layer) and the corresponding surface of the coil with a brush, and then paste the coil, and at the same time use a scraper on the upper surface of the coil to exhaust and compact the bonded surface and discharge it Excess adhesive glue. The release paper can be peeled off during construction and it can be directly laid. The construction method of self-adhesive polymer modified bitumen waterproof membrane is similar to that of self-adhesive polymer waterproof membrane. But for the treatment of lap joints, in order to ensure the bonding performance of the lap joints, the lap joints are heated with a hot air gun, especially when the construction is performed at a lower temperature. This measure is more necessary. The self-adhesive method of paving waterproof membrane should meet the following requirements. Before laying the coiled material, the surface of the base layer should be evenly coated with the basic layer treatment agent, and the coiled material should be spread in time after drying.
In winter, whether the coil is flexible or not depends on whether the coil is easy to construct. Fold the waterproof coil 180 degrees by hand to see if there are cracks or breaks on the upper and lower sides. If there is, the coil is unqualified. b. Looking at the stretch, the intuitive feeling presented by the high-quality waterproof membrane should be hard and tough, that is, the membrane has a certain hardness and elasticity when pressed by hand. Specifically, tear off the membrane of the membrane, Clamp the asphalt surface of the waterproof membrane with your fingertips and stretch it to see its stretchability. If you pinch it and it will fall off, the membrane will not have enough cohesion. At the same time, the membrane should not be torn when it is torn by hand, otherwise the membrane is effective. Less material elastomer is added. Performance identification method. A. The toughness of the flexible coil is not enough, and the stretching is poor.
The relevant information about the empty laying method of waterproof membrane is introduced here, and I hope this article will be helpful to you. If you still have any questions, you can contact us directly, and we will answer you as soon as possible. SBS waterproofing membrane is a mixture of SBS rubber modified asphalt waterproofing and high-quality reinforced carrier, and the surface is covered with polyethylene film, fine sand, mineral flakes (granules) or aluminum foil, copper foil and other isolation materials that can be curled Of sheet waterproof membrane. It is mainly suitable for roof waterproofing and underground waterproofing projects of industrial and civil buildings. Features. In the construction of underground engineering structure bottom plate and external wall waterproof construction, the protective layer is omitted, and the construction is convenient. Solve the problem of poor bonding between the structure and the waterproof membrane, so that the bonding surface is not prone to water splashing. Scope of application. Pre-laid polymer waterproofing membrane is suitable for underground construction, subway, tunnel and other waterproof projects. evaluation opinions. The pre-laid polymer waterproofing membrane adopts the pre-laid anti-adhesive construction method, no open flame, cold operation, convenient construction, saving time and energy, and no pollution.
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