What are the environmental requirements for the use of bentonite blankets?
When dealing with the base surface, the flatness of the base surface should be no more than 1/6, and a gentle transition should be required. No right angles and other parts are allowed. But for the pile structure comparison rules of concave convex surface, the surface smoothness requirements meet the turning radius of not less than 40 cm, this time to the floor and side wall connecting parts of key processing, ensure at the bentonite blanket bottom and side walls to ensure smooth transition.
In addition to waterproof blanket close on the surface and there are no major or requirements of bentonite, but also deal with the rough part of the surface of the base. Because bentonite blanket directly laid on the jet concrete surface, often a lot of tiny suspended part of the contact surface between the blanket body and the base, can not completely close, so the bentonite expands, will first fill these tiny holes, resulting in bentonite waterproof blanket particle loss, and once again the underground water level will change when the bentonite particles away, the influence of permanent waterproof effect of bentonite blanket.
Water absorbent granular bentonite is very strong, so keep dry in the production, storage and transportation process, but in the construction process, not only requires grassroots surface water to the Ming, general wet base bentonite blanket will not lead to early expansion, such as surface water can not handle, request for temporary drainage.
