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FG美人捕鱼 > 透水混凝土

微硅粉的应用-透水混凝土

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    透水混凝土因胶结界面质量较差的原因一直制约着其强度,掺入一定量的微硅粉能够显著改善其胶结界面质量,从而提高透水混凝土的抗压强度。因为微硅粉密度比水泥小,等质量取代水泥后,胶凝材料的体积增大,填充了大量孔隙,并且微硅粉中含有大量的非晶态活性二氧化硅,能与水泥水化生成的氢氧化钙,反应生成水化硅酸钙凝胶,即二次水化,从而加强骨料与浆体的粘结力。
    经过大量试验数据表明,当掺入6%的微硅粉时,透水混凝土抗压强度和透水性相对达到最优。