[1]吕艳梅,刘立新,罗卫华..商品混凝土收缩性能的试验研究[J].郑州大学学报(工学版),2004,25(03):65-69.[doi:10.3969/j.issn.1671-6833.2004.03.016]
　Lv Yanmei,LIU Lixin,Luo Weihua.Experimental study on shrinkage properties of commercial concrete[J].Journal of Zhengzhou University (Engineering Science),2004,25(03):65-69.[doi:10.3969/j.issn.1671-6833.2004.03.016]
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商品混凝土收缩性能的试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
25
期数:
2004年03期
页码:
65-69
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Experimental study on shrinkage properties of commercial concrete
作者:
吕艳梅; 刘立新; 罗卫华.
湖南大学土木工程学院,湖南,长沙,410082, 郑州大学土木工程学院,河南,郑州,450002, 郑州新世纪住宅有限公司,河南,郑州,450002
Author(s):
Lv Yanmei; LIU Lixin; Luo Weihua
关键词:
商品混凝土;  收缩;  试验研究
Keywords:
DOI:
10.3969/j.issn.1671-6833.2004.03.016
文献标志码:
A
摘要:
通过连续180 d对24组99个商品混凝土收缩试件收缩应变的量测,分析提出商品混凝土在标准条件下的收缩应变计算公式,利用多系数叠加法分析提出非标准条件商品混凝土的多系数收缩应变计算公式ε(t)=ε(t)0β1β2β3β4β5.并根据本试验数据,参考国内外收缩试验资料,给出各影响系数的确定方法.此外,将试验所提出的收缩应变计算公式与ACI收缩公式、中国建筑科学研究院收缩公式、王铁梦收缩公式进行了分析比较,结果表明:本文所给公式更适用于商品混凝土收缩应变的计算.
Abstract:
Through the measurement of the shrinkage strain of 180 commercial concrete specimens in 24 groups for 99 consecutive days, the calculation formula of shrinkage strain of commercial concrete under standard conditions was analyzed, and the multi-coefficient shrinkage strain calculation formula of commercial concrete under non-standard conditions was analyzed by multi-coefficient superposition method ε(t)=ε(t)0β1β2β3β4β5. In addition, the calculation formula of shrinkage strain proposed by the experiment is analyzed and compared with the ACI contraction formula, the contraction formula of China Academy of Building Research and the contraction formula of Wang Tiemeng, and the results show that the formula proposed in this paper is more suitable for the calculation of shrinkage strain of commercial concrete.

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更新日期/Last Update: 1900-01-01