| 商品混凝土的早期轴向拉伸试验研究 |
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| 引用本文： | 管品武,陈萌,刘立新,李险峰.商品混凝土的早期轴向拉伸试验研究[J].混凝土,2005(2):66-67,76. |
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| 作者姓名： | 管品武 陈萌 刘立新 李险峰 |
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| 作者单位： | 郑州大学土木工程学院,河南,郑州,450002;巩义市交通局,河南,郑州,451200 |
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| 摘 要： | 利用自行研制的试验装置进行了早龄期商品混凝土的轴向拉伸试验，成功地解决了混凝土试验对中困难的难题。分别得出了轴心抗拉强度和受拉弹性模量随龄期的发展变化规律，并在试验数据的基础上经过回归分析分别得出了轴心抗拉强度和受拉弹性模量随龄期增长的经验公式，为进一步防止和控制混凝土结构的早期裂缝提供了准确可靠的力学性能参数。
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| 关 键 词： | 商品混凝土 早期 轴向受拉 |
| 文章编号： | 1002-3550(2005)02-0066-03 |
Experimental study on axial tension of early-age ready-mixed concrete |
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| GUAN Pin-wu,CHEN Meng,LIU Li-xin,LI Xian-Feng.Experimental study on axial tension of early-age ready-mixed concrete[J].Concrete,2005(2):66-67,76. |
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| Authors: | GUAN Pin-wu CHEN Meng LIU Li-xin LI Xian-Feng |
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| Affiliation: | GUAN Pin-wu~1,CHEN Meng~1,LIU Li-xin~1,LI Xian-feng~2 |
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| Abstract: | A device is designed to produce an axial tension experiment of early-age ready-mixed concrete,and the difficult problem is solved successfully.The development law with age of axial tensile strength and axial tensile elastic modulus is obtained respectively.Based on the experimental results,the formula with age an axial tensile strength and axial tensile elastic modulus is regressed respectively,and the accurate and reliable mechanical parameters are provided to prevent and control the early-age cracking in the concrete structure. |
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| Keywords: | ready-mixed concrete early age axial tension |
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