| 冻融循环周次对陶粒混凝土动态力学性能影响的实验研究 |
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| 引用本文： | 施冠银,邱欣,陈江瑛. 冻融循环周次对陶粒混凝土动态力学性能影响的实验研究[J]. 宁波大学学报(理工版), 2015, 0(3): 74-77 |
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| 作者姓名： | 施冠银 邱欣 陈江瑛 |
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| 作者单位： | (宁波大学 机械工程与力学学院, 浙江 宁波 315211) |
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| 摘 要： | 为了研究冻融循环周次对陶粒混凝土动态力学性能的影响, 对含有页岩陶粒体积分数为0%、15%、30%、45%的陶粒混凝土试样分别进行0、10、20、30和40次的冻融循环后SHPB动态压缩实验. 实验表明: 陶粒混凝土的动态力学性能随着冻融循环周次增加而弱化, 动态压缩强度随着应变率的增加而增大, 并给出了冻融循环周次对陶粒混凝土动态压缩强度的变化规律.
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| 关 键 词： | 陶粒 混凝土 SHPB 冻融循环 动态力学性能 |
Experiment-based Study on Influence of Freeze-thaw Cycles on Dynamic Mechanical Properties of Ceramsite Concrete |
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| SHI Guan-yin,QIU Xin,CHEN Jiang-ying. Experiment-based Study on Influence of Freeze-thaw Cycles on Dynamic Mechanical Properties of Ceramsite Concrete[J]. Journal of Ningbo University(Natural Science and Engineering Edition), 2015, 0(3): 74-77 |
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| Authors: | SHI Guan-yin QIU Xin CHEN Jiang-ying |
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| Affiliation: | ( Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China ) |
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| Abstract: | The effect of freeze-thaw cycles on dynamic mechanical properties of the ceramsite concrete is studied. Four groups of the specimens with different ceramsite volume fraction including 0%, 15%, 30% and 45%, each of which experiences 0, 10, 20, 30 and 40 cycles of freeze-thaw, are tested using SHPB device. The experimental results show that the dynamic behaviors of ceramisite concrete decrease along with the increasing number of freeze-thaw cycles, and the dynamic compressive strength increase along with the increase of strain rate. Finally, the relationship between the dynamic compressive strength of the concrete and freeze-thaw cycles is established |
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| Keywords: | ceramsite concrete SHPB freeze-thaw cycle dynamic mechanical properties |
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