Difference between composite geomembrane and bentonite waterproof blanket
Natural bentonite is divided into two major groups: sodium based and calcium based. Bentonite has the characteristics of water swelling, bentonite waterproof blanket: bentonite mineral name is montmorillonite. General calcium bentonite expansion, the expansion of its volume is only about 3 times, while sodium bentonite in water adsorption weight five times of water, the volume expansion to more than 15-17 times the original, the sodium bentonite lock in the middle of the two layers of geosynthetic materials, maintenance and the role of strengthening, so that GCL is the shear strength of a whole.
The products of different materials, bentonite waterproof blanket composed of clay minerals and natural material processing machine, high expansibility and high water absorption capacity, moisture permeability is low; the composite geomembrane material is polyethylene particles by calendering equipment to produce plastic film.
Waterproof performance is different. Composite geomembrane: composite geomembrane composite impermeable membrane is divided into one cloth, one membrane and two cloth membrane. Tensile, anti tear, bursting and other physical and mechanical properties of high indicators, products with high strength, good elongation, deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good anti-seepage performance and so on.
