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- Title
再生细骨料对混凝土塑性收缩开裂性能影响.
- Authors
孙家瑛; 肖天翔; 陆阳升
- Abstract
Taking ICBO standard as a reference and using the flat panel constraint test, self-developed concrete plastic stress testing device and mercury intrusion method, the effects of recycled fine aggregate particle size, replacement rate, water-cement ratio, sand ratio on the plastic stress, pore structure and the property of plastic shrinkage cracking were investigated. The results show that the risk of cracking of the recycled fine aggregate concrete reduces gradually with decreasing recycled fine aggregate particle size range and increases with increasing replacement ratio of recycled fine aggregate. The water-cement ratio of recycled fine aggregate concrete is of great importance to the crack resistance of the concrete, either too high or too low would increase the risk of cracking. Appropriate sand ratio can be chosen to control the cracking of recycled fine aggregate concrete.
- Publication
Jianzhu Cailiao Xuebao: Journal of Building Materials, 2014, Vol 17, Issue 3, p475
- ISSN
1007-9629
- Publication type
Article
- DOI
10.3969/j.issn.1007-9629.2014.03.019