[1]李珂,刘立新,王仁义,等.商品混凝土后装拔出法地方测强曲线的研究[J].郑州大学学报(工学版),2002,23(02):79-82.[doi:10.3969/j.issn.1671-6833.2002.02.023]
LI Ke,LIU Lixin,Wang Renyi,et al.Study on local intensity measurement curve of commercial concrete after-loading extraction method[J].Journal of Zhengzhou University (Engineering Science),2002,23(02):79-82.[doi:10.3969/j.issn.1671-6833.2002.02.023]
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商品混凝土后装拔出法地方测强曲线的研究(
)
《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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23卷
- 期数:
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2002年02期
- 页码:
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79-82
- 栏目:
-
- 出版日期:
-
1900-01-01
文章信息/Info
- Title:
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Study on local intensity measurement curve of commercial concrete after-loading extraction method
- 作者:
-
李珂; 刘立新; 王仁义; 等.
-
郑州大学土木工程学院,河南,郑州,450002, 北京城建四建设工程有限公司,北京,100083
- Author(s):
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LI Ke; LIU Lixin; Wang Renyi; etc
-
-
- 关键词:
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后装拔出法; 抗拔力; 混凝土强度; 检测
- Keywords:
-
- DOI:
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10.3969/j.issn.1671-6833.2002.02.023
- 文献标志码:
-
A
- 摘要:
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通过对强度范围在20～70 MPa的商品混凝土构件进行4个龄期的拔出和取芯试验,测得混凝土抗拔力和抗压强度.根据38组试验结果,确定了数学相关模型,并建立了混凝土抗拔力与混凝土抗压强度的数学关系式,所得曲线相关性及误差范围符合规范中规定的制定曲线要求.试验结果表明,采用后装拔出法检测商品混凝土及高强混凝土效果很好,建议该曲线作为郑州市商品混凝土(包括C50以上混凝土)后装拔出法的地方测强曲线.
- Abstract:
-
Through the extraction and coring tests of commercial concrete components with a strength range of 20~70 MPa for four ages, the pulling force and compressive strength of concrete were measured. According to the results of 4 sets of tests, the mathematical correlation model was determined, and the mathematical relationship between the pulling force of concrete and the compressive strength of concrete was established, and the correlation and error range of the obtained curve conformed to the requirements of the formulation curve specified in the specification. The test results show that the post-loading extraction method is used to detect commercial concrete and high-strength concrete, and it is suggested that the curve be used as the local strength measurement curve of the post-loading pull-out method of commercial concrete (including concrete above C38) in Zhengzhou.
更新日期/Last Update:
1900-01-01