本文在实验室条件下合成了不同模数的固体水玻璃,并着重从凝结时间和抗压强度两个方面考察了不同条件下合成的固体水玻璃对矿渣-赤泥体系的激发效果.结果表明,就赤泥/矿渣重量比为30∶70的体系而言,当固体水玻璃的模数为1.2、水玻璃掺量以Na2O计为3%时激发效果最佳.此时,碱-矿渣-赤泥水泥的28天净浆抗压强度可达67MPa,并且与碱-矿渣水泥类似具有早强的特性.另外,X-射线衍射对水化3天试样和未水化试样的半定量分析结果表明,水化3天后试样已经发生了明显的反应,说明模数为1.2的固体水玻璃对矿渣-赤泥体系有着较好的激发效果.
参考文献
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