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| 再生混凝土的冻融循环试验研究 | |
| 引用本文： | 崔正龙,大芳賀義喜,北迁政文,田中礼治.再生混凝土的冻融循环试验研究[J].建筑材料学报,2007,10(5):534-537. |
| 作者姓名： | 崔正龙 大芳賀義喜 北迁政文 田中礼治 |
| 作者单位： | 1. 辽宁工程技术大学,土木建筑工程学院,辽宁,阜新,123000 2. 东北工业大学,建筑学科,日本,仙台,9828577 3. 宫城县农业短期大学,农业土木科,日本,仙台,9820215 |
| 基金项目： | 辽宁工程技术大学博士科研启动基金资助项目(70DZ45) |
| 摘 要： | 为了进一步研究再生混凝土耐久性的各种指标,对再生混凝土的冻融循环抵抗性做了基础性试验研究.试验以100%再生骨料替代天然碎石和砂子制备再生混凝土,以水灰比0.45,0.55为变动因素.试验结果表明,100%再生混凝土试件的冻融循环抵抗性与粗、细骨料置换率为0的普通混凝土试件相比,当水灰比为0.45,0.55时其耐久性指数分别降低6%和10%,但都能满足评价混凝土冻融循环抵抗性的最低指标. |
| 关 键 词： | 再生混凝土 耐久性指数 冻融循环 |
| 文章编号： | 1007-9629（2007）05-0534-04 |
| 收稿时间： | 2006-06-27 |
| 修稿时间： | 2007-03-14 |
Experimental Research on Freezing-Thawing Cycle of Recycled Aggregate Concrete |
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| CUI Zheng-long,OHAGA Yoshi-ki,KITATSUJI Masa-humi,TANAKA Rei-ji.Experimental Research on Freezing-Thawing Cycle of Recycled Aggregate Concrete[J].Journal of Building Materials,2007,10(5):534-537. | |
| Authors: | CUI Zheng-long OHAGA Yoshi-ki KITATSUJI Masa-humi TANAKA Rei-ji |
| Affiliation: | 1. College of Civil and Architectural Engineering, Liaoning Technical University, Fuxin 123000, China; 2. Faculty of Engineering,Tohoku Institute of Technology, Sendai 9828577, Japan; 3. Miyagi Agricultural College, Sendal 9820215, Japan |
| Abstract: | In order to study various factor affecting durability of recycled aggregate concrete,basic experimental research on the freezing-thawing resistance of recycled aggregate concrete was conducted.100% recycled aggregate instead of natural macadam and sand was used to prepare recycled aggregate concrete with water cement ratio of(0.45),(0.55) as changing factors.The experiment result shows that the freezing-thawing resistance of specimen using 100% recycled aggregate concrete is enhenced compared with the normal concrete whose coarse and fine aggregate's replacement ratio is 0,and the durability factor with water cement ratio of(0.45) and(0.55) decreases by 6% and 10% respectively,both can satisfy the lowest factor for evaluating freezing-thawing resistance. |
| Keywords: | recycled aggregate concrete durability factor freeze-thawing circulation |
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