粗骨料对轻骨料混凝土塑性收缩裂缝的影响

孙大明; 何兵; 吴芳; 喻骁

doi:10.11835/j.issn.1674-4764.2004.04.019

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粗骨料对轻骨料混凝土塑性收缩裂缝的影响

更新时间：2023-11-28

- 粗骨料对轻骨料混凝土塑性收缩裂缝的影响
- Effect of Coarse Aggregate on Characteristics of Plastic Shrinkage Cracking of Lightweight Aggregate Concrete
- 土木与环境工程学报（中英文） 2004年26卷第4期页码：88-92
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- DOI：10.11835/j.issn.1674-4764.2004.04.019
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- 纸质出版：2004
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孙大明, 何兵, 吴芳, 等. 粗骨料对轻骨料混凝土塑性收缩裂缝的影响[J]. 土木与环境工程学报（中英文）, 2004,26(4):88-92.

SUN Da-ming~1, HE Bing~2, WU Fang~1, et al. Effect of Coarse Aggregate on Characteristics of Plastic Shrinkage Cracking of Lightweight Aggregate Concrete[J]. Journal of Civil and Environmental Engineering, 2004, 26(4): 88-92.
孙大明, 何兵, 吴芳, 等. 粗骨料对轻骨料混凝土塑性收缩裂缝的影响[J]. 土木与环境工程学报（中英文）, 2004,26(4):88-92. DOI： 10.11835/j.issn.1674-4764.2004.04.019.

SUN Da-ming~1, HE Bing~2, WU Fang~1, et al. Effect of Coarse Aggregate on Characteristics of Plastic Shrinkage Cracking of Lightweight Aggregate Concrete[J]. Journal of Civil and Environmental Engineering, 2004, 26(4): 88-92. DOI： 10.11835/j.issn.1674-4764.2004.04.019.

摘要

轻骨料级配以及含水率影响用其配制的混凝土的塑性收缩裂缝。试验结果表明，轻骨料单粒级粒径增大，则骨料吸水率和新拌混凝土水分蒸发量均增大，而裂缝面积却随之减小：此外，高含水率轻骨料更有利于抑制混凝土早期塑性收缩开裂。

Abstract

The grading of lightweight aggregate (LA) and its water content has an effect on the plastic shrinkage cracking of lightweight aggregate concrete (LWAC). Test results show that the water absorption of LA and the water evaporation of the concrete increased with the increment of cubage of LA

but the area of plastic shrinkage cracking of LWAC decreased. Besides

LA with high water content is beneficial to restraining the plastic shrinkage cracking of LWAC.

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