Bentonite (Bentonite) by transliteration is a water-based clay mineral montmorillonite, because it has special properties. Such as: swelling, adhesion, adsorption, catalytic, thixotropic suspension of caption exchange and the like, it is widely used in various industrial fields. Abroad has produced more than 100 industrial and agricultural sectors in the field of application of 24, there are more than 300 products, so people call it “universal earth.”

Construction instruction
1.Before paving, make sure the base plane is even; tamp the ground and clear up the debris in case that GCL be punctured by sharp articles, which in turn affect the waterproof effect. Accumulated water shall be drained in the mean time to avoid GCL being soaked by water.
2. When paving the GCL, determine the direction and position. GCL shall be paved on the base plane according to the direction in proper order and shall be fixed by nails and washers. Nail length is 3040 mm. The distance between two nails is about 400 mm. When paving is undertaken on vertical plane or slopping surface, additional nails and washers shall be added accordingly in order to avoid sliding. Nails are used to fix the edges of overlapping part of GCL; besides, a number of nails shall be added and fixed evenly on the whole GCL according to the flatness. Make sure that GCL is fixed stably on ground and wall.
3. Lap joint. Lap width is between 200 and 250 mm. A bentonite cube with 100mm width and 10 mm height shall be spread between upper and low ends. The joint shall be occluded by bentonite mud. Bentonite cream (bentonite is mixed with water in a ratio of 1:3. After stirring evenly, bentonite cream forms) is applied for occlusion on slope or special point. Make sure there is no drape, miscellaneous soil or other materials on the joint.
4. Special paving. If pipe or wire gets through GCL, first put a whole GCL under the base in accordance with the pipe diameter plus 300mm to strengthen. And then use the bentonite cream to fill in the edge of joint. If confronting break or complicated juncture, cover the whole GCL on the break part or juncture, and then cover the bentonite powder on the lapping parts.
5. After paving, clean up works shall be done. Sand and cement mortar shall be scattered on GCL so as to form a preventive layer. After tamping evenly, the whole paving process is completed.