Product Introduction:

　　Bentonite waterproof blanket is a specially made composite geotextile and non-woven fabric filled with high expansion sodium based bentonite. The bentonite anti-seepage pad made by needle punching method can form many small fiber spaces, making it difficult for bentonite particles to flow in one direction. When encountering water, it forms a uniform and high-density gel like waterproof layer inside the pad, effectively preventing water leakage.

　　Bentonite waterproof blankets can be divided into needle punched sodium based bentonite waterproof blankets, needle punched membrane coated sodium based bentonite waterproof blankets, and adhesive bonded sodium based bentonite waterproof blankets according to production processes. The needle punched membrane covering method sodium based bentonite waterproof blanket is a composite layer of high-density polyethylene geotextile on the outer surface of the nonwoven geotextile of the needle punched sodium based bentonite waterproof blanket.

　　Performance characteristics:

　　1. Compactness - Sodium based bentonite forms a high-density diaphragm under water pressure, with a thickness of about 3mm. Its water permeability is& × ten ˉ Below 11m/sec, equivalent to 100 times the density of 30cm thick clay, it has strong self water retention performance.

　　2. It has strong waterproof performance because sodium based bentonite is a natural inorganic material that will not age or corrode even after a long time or changes in the surrounding environment, resulting in long-lasting waterproof performance.

　　3. Simple construction and short construction period - Compared with other waterproof materials, construction is relatively simple and does not require heating and pasting. Simply use bentonite powder, nails, washers, etc. for connection and fixation. After construction, there is no need for special inspection, and if waterproof defects are found, they are also easy to repair. GCL is one of the existing waterproof materials with a shorter construction period.

　　4. Not affected by temperature - not brittle even in cold weather conditions.

　　5. Integration - Integration of waterproof materials and objects: Sodium based bentonite has 20-28 times the expansion capacity when encountering water. Even if the concrete structure undergoes vibration and settlement, the bentonite in GCL can repair cracks on the concrete surface within 2mm.

　　6. Green and environmentally friendly - Bentonite is a natural inorganic material that has no special impact on the environment and has good environmental performance.

　　7. High performance to price ratio, widely used. The product range can reach 6 meters, greatly improving construction efficiency.

　　Applicable scope and application conditions:

　　Suitable for municipal (landfill), water conservancy, environmental protection, artificial lakes, and underground waterproofing and anti-seepage engineering of buildings.

　　Construction can still be carried out at negative temperatures (-20 ℃) where traditional waterproof materials cannot be applied; Construction can also be carried out on damp base layers (without open water); Construction cannot be carried out in rainy and snowy weather; Not suitable for strong acid or alkaline solution anti-seepage; Due to the inorganic nature of bentonite, its durability is better than that of organic waterproof materials.