Water swelling bentonite particles to form a homogeneous colloidal system of direct composite waterproof blankets, in two layers of geotextile limit the role of the bentonite from disorder into order expansion, continued swelling bentonite layer itself the result is to achieve dense, so as to have a waterproof effect. Seepage principle mineralogical name of bentonite montmorillonite, bentonite according to the chemical composition of natural sodium and calcium are divided into two categories based. Bentonite has a water swelling properties, when calcium bentonite expands, its expansion is only about three times its own volume, and adsorption of sodium bentonite water five times its own weight in water, swell to 15-17 times more than the original, sodium bentonite will lock in the middle of two geosynthetics, protective and strengthening of the role of the GCL has a certain overall shear strength. 1. Performance Comparison (compared with conventional membrane impermeable material) (1) bentonite inorganic materials for water pollution are high quality composite waterproof blanket, and the durability and long life. (2) Bentonite waterproof pad (GCL) composite construction is simple the best waterproof blanket, without welding or bonding composite waterproof blankets, just lap and reliability. (3) freeze-thaw resistance, need to take insulation measures. (4) has a self-healing, the construction process and the use of the process are not afraid to pierce. (5) can reduce the thickness of the base layer of compacted clay, thus shorten the duration and reduce the cost. Yuncheng composite waterproof blanket, high quality composite waterproof blanket, Edison new materials (certified merchants) new material provided by the Edison Company. Road Zhiyuan, temper forward. Edison New Materials Co., Ltd. (www.fangshenmo.com) strives to be and you win, symbiosis, strategic partners to move forward, the more determined to become the most influential site construction materials business, and you leap together to succeed !