| 自密实混凝土抗裂性能研究 |
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| 引用本文： | 杨医博,黄坤成,容宜深,黄浩文,胡志威,梁松.自密实混凝土抗裂性能研究[J].混凝土,2008(10). |
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| 作者姓名： | 杨医博 黄坤成 容宜深 黄浩文 胡志威 梁松 |
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| 作者单位： | 1. 华南理工大学土木与交通学院,土木工程系,广东,广州,510640;华南理工大学亚热带建筑科学国家重点实验室,广东,广州,510640
2. 华南理工大学土木与交通学院,土木工程系,广东,广州,510640 |
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| 基金项目： | 华南理工大学校科研和教改项目 |
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| 摘 要： | 对水胶比为0.43的自密实混凝土和普通泵送混凝土的早期开裂性能和干缩开裂性能进行了对比研究.研究结果显示,在同样水胶比情况下,在早期开裂和干缩开裂试验中,自密实混凝土的裂纹宽度均较普通泵送混凝土细,裂纹数量均较普通泵泵送混凝土多;从总体上评价,自密实混凝土的抗早期开裂和于缩开裂的性能均优于普通泵送混凝土.
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| 关 键 词： | 自密实混凝土 泵送混凝土 早期开裂 干缩开裂 |
The crack resistance of self-compaction concrete |
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| YANG Yi-bo,HUANG Kun-cheng,RONG Yi-shen,HUANG Hao-wen,HU Zhi-wei,LIANG Song.The crack resistance of self-compaction concrete[J].Concrete,2008(10). |
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| Authors: | YANG Yi-bo HUANG Kun-cheng RONG Yi-shen HUANG Hao-wen HU Zhi-wei LIANG Song |
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| Affiliation: | a. Department of Civil Engineering;b. State Key Laboratory of Subtropical Architecture Science;South China University of Technology;Guangzhou 510640;China |
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| Abstract: | The early stage crack and drying shrinkage crack of self-compaction concrete and pump concrete with water binder ratio is 0.43 are studied.The results show that the crack width of self-compaction concrete is smaller than pump concrete,and the crack number of self-compaction concrete is higher than pump concrete at the both early stage crack and drying shrinkage crack test.In general,the early stage crack and drying shrinkage crack resistance of self-compaction concrete is better than pump concrete. |
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| Keywords: | self-compaction concrete pump concrete early stage crack drying shrinkage crack |
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