geosynthetic clay liner-膨润土防水毯（GCL）

Product Introduction

   Introduction to Bentonite Waterproof Blanket (GCL): GCL is a type of anti-seepage liner that lies between CCL (on-site thick compacted clay anti-seepage liner) and polymer material - geomembrane. Mainly used in environmental engineering projects such as waste landfills, underground reservoirs, and underground infrastructure construction, it solves the problems of sealing, isolation, and leakage prevention, with good effects and strong resistance to damage.

Characteristics of Bentonite Waterproof Blanket

1. 密实性：钠基膨润土在水压状态下形成高密度横隔膜，厚度约3mm时，它的透水性为α?10-11m/sec以下，相当于100倍的30cm厚度粘土的密实度，具有很强的自保水性能。

1. Compactness: Sodium based bentonite forms a high-density diaphragm under water pressure, with a thickness of about 3mm. Its water permeability is α? Below 10-11m/sec, equivalent to 100 times the density of 30cm thick clay, it has strong self water retention performance.

2. 具有永久的防水性能：因为钠基膨润土系天然无机材料，即使经过很长时间或周围环境发生变化，也不会发生老化或腐蚀现象，因此防水性能持久。

2. Permanent waterproof performance: Because sodium based bentonite is a natural inorganic material, even after a long period of time or changes in the surrounding environment, it will not age or corrode, resulting in long-lasting waterproof performance.

3. 施工简便，工期短：和其他防水材料比较，施工相对比较简单，不需要加热和粘贴。只需用膨润土粉末和钉子、垫圈等进行连接和固定。施工后不需要特别的检查，如果发现防水缺陷也容易维修。GCL是现有防水材料中施工工期最短的。

3. Easy construction and short construction period: Compared with other waterproof materials, the 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 the shortest construction period among existing waterproof materials.

4. 不受气温影响：在寒冷气候条件下也不会脆断。

4. Not affected by temperature: It will not brittle even in cold weather conditions.

5. 防水材料和对象的一体化：钠基膨润土和水反应时，具有13-16倍的膨胀能力，即使混凝土结构物发生震动和沉降，GCL内的膨润土也能修补2mm以内混凝土表面的裂纹。

5. Integration of waterproof materials and objects: When sodium based bentonite reacts with water, it has an expansion capacity of 13-16 times. Even if the concrete structure undergoes vibration and settlement, the bentonite in GCL can repair cracks on the concrete surface within 2mm.

6. 绿色环保：膨润土为天然无机材料，对人体无害无毒，对环境没有特别的影响，具有良好的环保性能。

6. Green and environmentally friendly: Bentonite is a natural inorganic material that is harmless and non-toxic to the human body, has no special impact on the environment, and has good environmental performance.