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避水通是由日本小田急建材避水通株式会社开发研制成。它采用无毒、无味的火山灰物质和无机天然矿石，在和水泥、水的化学反应中吸收氢氧化钙，反应生成硅酸钙胶体。在反应过程中，避水通很好地发挥了无定形这个特殊功能。促进了界面的活性，大面积、大角度地繁殖，填塞了水与
Water-resistant by Japan’s Odakyu Building Materials Co., Ltd. to prevent water from the development and development. It uses non-toxic, tasteless pozzolanic substances and inorganic natural ore, in the chemical reaction with cement, water absorption of calcium hydroxide, the reaction generates calcium silicate gel. In the course of the reaction, water-repellent play a very amorphous amorphous this special function. Promote the activity of the interface, large-scale, high-angle breeding, filled with water and