刚性防水材料可以可分为防水混凝土和防水砂浆两大类。它是一种利用外加剂和合成高分子材料,跟混凝土或水泥砂浆进行合理配制,从而起到堵塞毛细孔、抑制孔隙率增长、增加防水层密度,形成一定抗渗防水能力的防水材料。刚性防水材料主要可分为两大类防水混凝土和防水砂浆。主要原理是将外加剂或合成高分子材料经合理掺配加入水泥砂浆或混凝土中,起到减少或抑制孔隙率,堵塞毛细孔,增加密实性作用,而形成的具有一定抗渗能力的防水砂浆或防水混凝土。

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