What is the waterproof effect of bentonite waterproof blanket?
RELEASE TIME :
2021-08-09 15:03
Bentonite waterproof blanket is a new type of blanket waterproof material made of bentonite particles fixed between geotextiles and plastic woven fabrics. The anti-seepage principle of bentonite waterproof blanket: bentonite can expand 5-10 times when it encounters water, the anti-seepage hydrostatic pressure can reach more than 1.0MPa, the permeability is 5×10-11m/s, and the mass of bentonite per unit area is 5kg/m2. Waterproof performance, natural inorganic materials, no aging reaction, long service life of 50 years.
Due to the superior waterproof and anti-seepage performance of the waterproof blanket, it is used for anti-seepage, anti-corrosion, and anti-seepage in subways, construction underground projects, roof reservoir anti-seepage, domestic waste landfills, sewage treatment plants, industrial waste, petrochemical, mining, and agriculture. The anti-seepage effect of the waterproof blanket can be seen in a large number of anti-seepage projects such as leakage projects.
Therefore, choosing a bentonite waterproof blanket can guarantee the waterproof effect. In addition, choosing a bentonite waterproof blanket manufacturer is the key. It is more reliable to consult more, compare more and understand more. If you have the ability, it is more reliable to go to the manufacturer for on-site inspections.
As a waterproof construction method, bentonite waterproof blanket has certain advantages compared with other waterproof constructions, and the requirements for the bottom layer are relatively low. First, the concrete bottom layer is firm, the surface is flat, and there are no cracks, peeling, loosening, etc.; second, the concrete surface is leveled, and all internal and external corners are chamfered with bentonite particles or bentonite sealant at 5cmx5em; within the scope of bentonite construction, drilling, Clean and clutter free.
The construction of bentonite waterproof blanket has one thing in common with other waterproof methods, that is, it cannot be constructed in bad weather, such as rain, snow and heavy rain.
Before the construction of the bentonite waterproof blanket, a layer of bentonite particles should be dried and sprinkled at a dosage of 3 kg/m. The site should be inspected before the material is cut, and the laying plan should be determined according to the characteristics of the project. According to the width of the waterproof blanket, the program standard should be based on minimizing the overlap of the waterproof blanket and saving materials. The blanking must be accurate, but there is a small amount of surplus; unqualified blanking is prohibited.
When the overlap at the corner of the facade and plane cannot be avoided, the overlapping width should be 600lnln, that is, the waterproof blanket on the facade and plane should extend to 300mm of the plane and facade at the corner, and no additional layer with a width of 500ram should be laid, The waterproof blanket on the facade should be pressed against the waterproof blanket on the plane; if the roof and side walls are covered with waterproofing, you need to press the side wall waterproof blanket to get the roof waterproof blanket.
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