| 掺合料混凝土抗硫酸盐性能及评价方法 |
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| 引用本文： | 叶建雄,杨长辉,周熙,陈科.掺合料混凝土抗硫酸盐性能及评价方法[J].土木与环境工程学报,2006,28(4):118-120. |
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| 作者姓名： | 叶建雄 杨长辉 周熙 陈科 |
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| 作者单位： | 1. 重庆大学,材料科学与工程学院,400045
2. 中铁八局一公司,重庆,400020 |
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| 摘 要： | 研究了硅灰、矿渣微粉和粉煤灰三种常用矿物掺合料对混凝土抗硫酸盐腐蚀能力的影响。试验结果表明:三种矿物掺合料均可改善混凝土的抗硫酸盐腐蚀能力,作用效率由高至低依次为:硅灰>矿渣>粉煤灰;掺合料混凝土中砂浆膨胀值发展与混凝土硫酸盐腐蚀程度有良好相关性,采用混凝土中砂浆的膨胀值和抗压强度比两项指标能较准确的评价混凝土抗硫酸盐腐蚀的能力。
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| 关 键 词： | 矿物掺合料 硫酸盐腐蚀 砂浆膨胀值 抗压强度比 混凝土 |
| 文章编号： | 1006-7329(2006)04-0118-03 |
| 收稿时间： | 2006-01-08 |
| 修稿时间： | 2006年1月8日 |
Sulphate Attack Resistance of the Concrete with Additives and Its Assessment |
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| YE Jian - xiong,YANG Chang - hui,ZHOU Xi,CHEN Ke.Sulphate Attack Resistance of the Concrete with Additives and Its Assessment[J].Journal of Civil and Environmental Engineering,2006,28(4):118-120. |
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| Authors: | YE Jian - xiong YANG Chang - hui ZHOU Xi CHEN Ke |
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| Affiliation: | 1. College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P. R. China; 2. The First Compary of China Railway 8 th Group Corporation, Chongqing 400020, P. R. China |
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| Abstract: | The influence of three kinds of additives: silica fume,slag and fly ash on the sulphate attack resistance of concrete were studied.The experiment results show that these three kinds of additives can improve sulphate attack resistance of the concrete and the order of their efficiency from high to low is silica fume,slag and fly ash;the development of mortar expansion value is closely related to the degree of sulphate attack resistance of the concrete;integrated assessing two concrete properties: mortar expansion value and compressive strength ratio can more exactly assess the sulphate attack resistance of the concrete. |
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| Keywords: | mineral additive sulphate attack mortar expansion value compressive strength ratio concrete |
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