| 高抗蚀硅酸盐水泥提高混凝土抗渗性能机理研究 |
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| 引用本文： | 任雪梅,宋家茂,郝挺宇. 高抗蚀硅酸盐水泥提高混凝土抗渗性能机理研究[J]. 混凝土与水泥制品, 2020, 0(5): 10-12. DOI: 10.19761/j.1000-4637.2020.05.010.03 |
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| 作者姓名： | 任雪梅 宋家茂 郝挺宇 |
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| 作者单位： | 中冶建筑研究总院有限公司,北京100088;中冶高性能混凝土工程技术中心,北京100088;中冶建筑研究总院有限公司,北京100088;中冶高性能混凝土工程技术中心,北京100088;中冶建筑研究总院有限公司,北京100088;中冶高性能混凝土工程技术中心,北京100088 |
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| 基金项目： | 十三五国家重点研发计划课题;唐山市科技计划项目 |
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| 摘 要： | 为探究高抗蚀硅酸盐水泥提高混凝土的抗渗性能机理,试验研究了普通硅酸盐水泥混凝土及特制高抗蚀硅酸盐水泥混凝土的抗压强度、氯离子扩散系数和直流阶跃电阻率。结果表明,高抗蚀硅酸盐水泥不是通过提高混凝土强度而主要是通过降低内部空隙率及减少连通性来实现混凝土抗渗性的提升。
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| 关 键 词： | 高抗蚀硅酸盐水泥 混凝土 电阻率 氯离子扩散系数 |
Investigation on Mechanism of Permeability of Concrete with High Corrosion Resistant Portland Cement |
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| REN Xue-mei,SONG Jia-mao,HAO Ting-yu. Investigation on Mechanism of Permeability of Concrete with High Corrosion Resistant Portland Cement[J]. China Concrete and Cement Products, 2020, 0(5): 10-12. DOI: 10.19761/j.1000-4637.2020.05.010.03 |
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| Authors: | REN Xue-mei SONG Jia-mao HAO Ting-yu |
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| Affiliation: | (Central Research Institute of Building and Construction MCC Co.,Ltd.,Beijing 100088,China;Engineering and Technology Center of High Performance Concrete,MCC,Beijing 100088,China) |
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| Abstract: | In order to explore the mechanism of high corrosion resistance portland cement to improve the impermeability of concrete, the compressive strength, rapid chloride diffusion coefficient and direct current step input resistivity of concrete with ordinary cement and high corrosion resistant cement(HCRC) were studied. The results show that HCRC can improve the impermeability of concrete not by improving the strength of concrete, but mainly by reducing the internal porosity and connectivity. |
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| Keywords: | High corrosion resistant portland cement Concrete Resistivity Chloride diffusion coefficient |
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