| 水泥混凝土线膨胀系数试验研究 |
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| 引用本文： | 张艳聪,田波,彭鹏,何哲.水泥混凝土线膨胀系数试验研究[J].公路,2011(9):201-205. |
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| 作者姓名： | 张艳聪 田波 彭鹏 何哲 |
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| 作者单位： | 交通部公路科学研究院 北京市100088 |
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| 摘 要： | 利用光杠杆系统测定水泥混凝土线膨胀系数.首先探讨了光杠杆测量系统的精确计算公式并采用游标卡尺替代直尺改进了传统的光杠杆系统,提高了试验结果的精度.接着测定多种集料类型的水泥混凝土线膨胀系数.结果表明:粗集料含量相当时,集料本身线膨胀系数越大,含有该集料混凝土的线膨胀系数也越大；升高或降低相同温度时,混凝土的膨胀和收缩量...
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| 关 键 词： | 线膨胀系数 水泥混凝土 光杠杆 集料类型 |
Experiment and Study on Coefficient of Thermal Expansion of Cement Concrete |
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| ZHANG Yan-cong,TIAN Bo,PENG Peng,HE Zhe.Experiment and Study on Coefficient of Thermal Expansion of Cement Concrete[J].Highway,2011(9):201-205. |
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| Authors: | ZHANG Yan-cong TIAN Bo PENG Peng HE Zhe |
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| Institution: | ZHANG Yan-cong,TIAN Bo,PENG Peng,HE Zhe(Research Institute of Highway,Ministry of Transport,Beijing 100088,China) |
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| Abstract: | A method for determining the coefficient of thermal expansion(CTE) of concrete with optical lever system are introduced.In order to improve the system of traditional optical lever,vernier caliper is used instead of the scale plate and the precise formula is deduced according to theories.The experiments are carried out to test the CTE of concrete with different aggregates.The results show as follows: when aggregate content is equivalent,the CTE of concrete increases with that of aggregate;concrete expansive ... |
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| Keywords: | CTE cement concrete optical lever variety of aggregates |
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