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INFLUENCE OF SUBSTITUTION OF ORDINARY PORTLAND CEMENT BY SILICA FUME ON THE HYDRATION OF SLAG-PORTLAND CEMENT PASTES

机译:硅灰替代普通硅酸盐水泥对矿渣硅酸盐水泥浆水化的影响

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Effect of gradual substitution of ordinary Portland cement by a few percent of silica fume (0.0, 2.5, 5.0 and 7.5 wt.%)on the hydration properties of slag-Portland cement pastes up to 12 months was investigated. The results show that thecomposite cement pastes containing silica fume give the higher physico-mechanical properties than that of the slag-Portlandcement. Also, the XRD results reveal that the peak of Ca(OH)? shows higher intensity in the sample without silica fume andcompletely disappears in the sample containing 7.5 wt.% silica fume content. Also, the intensity peaks of C?AH?? sharplyincrease with silica fume content.
机译:研究了用少量硅粉(0.0、2.5、5.0和7.5 wt。%)逐渐替代普通波特兰水泥对矿渣-波特兰水泥浆长达12个月的水化性能的影响。结果表明,含硅灰的复合水泥浆比渣-硅酸盐水泥具有更高的物理机械性能。另外,XRD结果显示出Ca(OH)2的峰?在没有硅粉的样品中显示出较高的强度,并且在含有7.5 wt。%硅粉的样品中完全消失。另外,C 2 AH 5的强度峰。硅粉含量急剧增加。

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