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
PDF下载 (354)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),2015,28(03):74-77.DOI:
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 & Engineering Edition),2015,28(03):74-77.DOI:
| Title: | Experiment-based Study on Influence of Freeze-thaw Cycles on Dynamic Mechanical Properties of Ceramsite Concrete |
| 作者: | 施冠银, 邱 欣, 陈江瑛* |
| Author(s): | SHI Guan-yin, QIU Xin, CHEN Jiang-ying* |
| 关键词: | 陶粒; 混凝土; 冻融循环; 动态力学性能 |
| Keywords: | SHPB; ceramsite; concrete; freeze-thaw cycle; dynamic mechanical properties |
| 分类号: | TU502+.6 |
| 文献标识码: | A |
| 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. |
| 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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| 备注/Memo: | 收稿日期: 2014?09?30. 宁波大学学报（理工版）网址 http://journallg.nbu.edu.cn/基金项目: 国家自然科学基金（10972109, 11272165）.第一作者: 施冠银（）, , 浙江慈溪人, 在读硕士研究生, 主要研究方向: 冲击动力学. E-mail: sgy04208@163.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
