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| 水灰比对混凝土氯离子扩散系数和碳化速率影响的试验研究 | |
| 引用本文： | 金骏,吴国坚,翁杰,王传坤,岳增国,许晨.水灰比对混凝土氯离子扩散系数和碳化速率影响的试验研究[J].硅酸盐通报,2011,30(4):943-949. |
| 作者姓名： | 金骏 吴国坚 翁杰 王传坤 岳增国 许晨 |
| 作者单位： | 1. 国家建筑五金材料产品质量监督检验中心,杭州,310019 2. 浙江大学结构工程研究所,杭州310058;青岛绿城建筑设计有限公司,青岛266071 3. 浙江大学结构工程研究所,杭州,310058 |
| 基金项目： | 国家自然科学基金重点项目(No.50538070) |
| 摘 要： | 氯离子扩散系数和碳化速率是表征混凝土耐久性的主要指标.通过氯盐浸泡和快速碳化试验,基于试验检测和数据分析,研究了水灰比对氯离子扩散系数和碳化速率系数的影响规律.试验结果表明,水灰比越大,氯离子扩散系数越大,但水灰比过小时水灰比对扩散系数的影响程度降低；水灰比越大,混凝土碳化速度越快.碳化速率系数与水灰比成线性关系.结合... |
| 关 键 词： | 耐久性 扩散系数 表面氯离子浓度 碳化 水灰比 |
Experimental Study on Influence of Cement Water Ratio on Chloride Diffusion Coefficient and Carbonation Rate of Concrete |
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| JIN Jun,WU Guo-jian,WENG Jie,WANG Chuan-kun,YUE Zeng-guo,XU Chen.Experimental Study on Influence of Cement Water Ratio on Chloride Diffusion Coefficient and Carbonation Rate of Concrete[J].Bulletin of the Chinese Ceramic Society,2011,30(4):943-949. | |
| Authors: | JIN Jun WU Guo-jian WENG Jie WANG Chuan-kun YUE Zeng-guo XU Chen |
| Affiliation: | JIN Jun1,WU Guo-jian1,WENG Jie1,WANG Chuan-kun2,3,YUE Zeng-guo2,XU Chen2 (1.China National Product Quality Supervision Inspection Center of Builder's Finish Hardware Material,Hangzhou 310019,China,2.Institute of Structural Engineering,Zhejiang University,Hangzhou 310058,3.Greentown Architecture Design Co.Ltd,Qingdao 266071,China) |
| Abstract: | Chloride diffusion coefficient and carbonation rate are the main indexes to reflect concrete performance of durability.Based on the test and data analysis,experiment was carried out by chloride immersion test and rapid carbonation test to study the laws of chloride diffusion coefficient and carbonation rate influenced by cement water ratio.The results shows that the higher water-cement ratio the greater the chloride ion diffusion coefficient.However,as the water-cement ratio is lower,the influence degree re... |
| Keywords: | durability diffusion coefficient surface chloride concentration carbonation cement water ratio |
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