| 纳米CaCO_3对砼耐干湿循环腐蚀性能的影响 |
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| 引用本文： | 李固华,高波.纳米CaCO_3对砼耐干湿循环腐蚀性能的影响[J].重庆交通大学学报(自然科学版),2007,26(2):131-135. |
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| 作者姓名： | 李固华 高波 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 西南交通大学校科研和教改项目 |
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| 摘 要： | 以掺15%粉煤灰的砼为基准,研究了纳米CaCO3(NC)砼耐干湿腐蚀循环的性能.试验结果表明:与基准砼相比,在70次和110次循环后,NC掺量为1%时砼的相对耐干湿循环系数分别提高11%和13%,但过高的NC掺量可能对砼的耐久性有副作用;同时对NC砼性能的机理进行了分析.
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| 关 键 词： | 纳米CaCO3 粉煤灰 砼 干湿腐蚀循环 |
| 文章编号： | 1001-716X(2007)02-0131-05 |
| 修稿时间： | 2006年2月20日 |
Effect of NM Level CaCO3 on Performance of the Concrete in Drying-Wetting Cycle in Corrosive Environments |
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| LI Gu-hua,GAO Bo.Effect of NM Level CaCO3 on Performance of the Concrete in Drying-Wetting Cycle in Corrosive Environments[J].Journal of Chongqing Jiaotong University,2007,26(2):131-135. |
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| Authors: | LI Gu-hua GAO Bo |
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| Abstract: | Regarding fly ash concrete as normal basis,the performances of concretes with nm level CaCO3(NC) are investigated in drying-wetting cycle in corrosive environments.The result shows that comparing with normal concrete,after 70 and 110 times drying-wetting cycle,modulus ratios of drying-wetting cycle in corrosive environments of the concrete with 1% NC have increased by 11% and 13% respectively.Too much NC in concrete would decrease the durability of the concrete.Finally,the mechanism for the concrete with NC is discussed. |
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| Keywords: | nm level CaCO3 fly ash concrete drying-wetting cycle in corrosive environments |
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