| Study on Influence of Mineral Admixture on Chloride Ion Penetration and Diffusion in Concrete |
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| 引用本文： | Xie JianXiong,Li XiaoZheng,Liao JiaQing,Yang ChangHui,Wang Chong. Study on Influence of Mineral Admixture on Chloride Ion Penetration and Diffusion in Concrete[J]. 保鲜与加工, 2005, 0(3): 89-92 |
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| 作者姓名： | Xie JianXiong Li XiaoZheng Liao JiaQing Yang ChangHui Wang Chong |
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| 摘 要： | In this paper, the influences of different kinds and different amount of mineral admixture to Cl-penetration and diffusion in concrete are studied. The results of experiment show that separate addition of mineral admixture (ground fly ash, slag fines, silica fume) into concrete can improve its resistance to chloride ion penetration and diffusion. Furthermore,the effect of silica fume is the best, fly ash second, and then follows slag fines. Mechanism analysis shows that the pozzolanic effect of mineral admixture improves the interface between the cement and aggregate in concrete, reduces the total porosity, makes pores more smaller, on the other hand it increases the Cl-consolidation capability of concrete with low alkaline C-S-H gel produced. So the resistance to chloride ion penetration of concrete is improved.
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| 关 键 词： | mineral admixture pore structure chloride ion penetration corrosion of steel concrete |
| 收稿时间： | 2005-02-22 |
| 修稿时间： | 2005-02-22 |
Study on Influence of Mineral Admixture on Chloride Ion Penetration and Diffusion in Concrete |
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| Xie JianXiong;Li XiaoZheng;Liao JiaQing;Yang ChangHui;Wang Chong. Study on Influence of Mineral Admixture on Chloride Ion Penetration and Diffusion in Concrete[J]. Storage & Process, 2005, 0(3): 89-92 |
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| Authors: | Xie JianXiong Li XiaoZheng Liao JiaQing Yang ChangHui Wang Chong |
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| Abstract: | In this paper, the influences of different kinds and different amount of mineral admixture to Cl-penetration and diffusion in concrete are studied. The results of experiment show that separate addition of mineral admixture (ground fly ash, slag fines, silica fume) into concrete can improve its resistance to chloride ion penetration and diffusion. Furthermore,the effect of silica fume is the best, fly ash second, and then follows slag fines. Mechanism analysis shows that the pozzolanic effect of mineral admixture improves the interface between the cement and aggregate in concrete, reduces the total porosity, makes pores more smaller, on the other hand it increases the Cl-consolidation capability of concrete with low alkaline C-S-H gel produced. So the resistance to chloride ion penetration of concrete is improved. |
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| Keywords: | mineral admixture pore structure chloride ion penetration corrosion of steel concrete |
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