| 硅灰和减水剂对水泥耐硫酸盐腐蚀的影响 |
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| 引用本文： | 凤凌云.硅灰和减水剂对水泥耐硫酸盐腐蚀的影响[J].西南交通大学学报,1988(3). |
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| 作者姓名： | 凤凌云 |
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| 摘 要： | 本文进行的研究表明:掺入硅灰或减水剂能降低水泥石中氢氧化钙(CH)与钙矾石(AFt)的含量,增加水化硅酸钙(C-S-H)的含量,改善孔结构,显著减少大孔体积,增加小孔体积,有效地防止外界SO_4~(2-)离子的渗入,从而提高水泥的耐硫酸盐腐蚀性能。
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| 关 键 词： | 硅灰 减水剂 水化硅酸钙 钙乳石 硫酸盐腐蚀 |
Influence of Silica Fume and Water Reducer on Resistance to Sulfate Attack of Cement |
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| Fong Lingyun.Influence of Silica Fume and Water Reducer on Resistance to Sulfate Attack of Cement[J].Journal of Southwest Jiaotong University,1988(3). |
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| Authors: | Fong Lingyun |
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| Institution: | Fong Lingyun |
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| Abstract: | This study shows that silica fume or water reducer added in cement can decrease CH and AFt content, and increase C-S-H content. Both of them can also improve the pore structure of the hardened cement paste, with the volume of fine pores increasing while that of coarse pores explicitly decreasing. Thus the cement paste can be protected from SO_4~(2-) ion permeance, and its resistance to sulfate attack is obviously increased. |
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| Keywords: | silica fume reducer calcium silicate hydrate ettringite sulfate attack |
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