| PVA纤维天然浮石混凝土动态力学性能研究 |
| |
| 引用本文： | 霍俊芳,奇雨欣,王萧萧,曹雪,李海青.PVA纤维天然浮石混凝土动态力学性能研究[J].混凝土与水泥制品,2021(3):56-61. |
| |
| 作者姓名： | 霍俊芳 奇雨欣 王萧萧 曹雪 李海青 |
| |
| 作者单位： | 内蒙古工业大学 土木工程学院,内蒙古 呼和浩特 010050;内蒙古自治区土木工程结构与力学重点实验室,内蒙古 呼和浩特 010050;内蒙古工业大学 土木工程学院,内蒙古 呼和浩特 010050 |
| |
| 基金项目： | 国家自然科学基金项目(51609119);内蒙古工业大学科学研究项目(ZD201609)。 |
| |
| 摘 要： | 以内蒙古地区的天然浮石为粗骨料配制天然浮石混凝土,采用?100分离式霍普金森压杆(SHPB)试验分析了不同聚乙烯醇(PVA)纤维体积掺量(0、0.15％、0.30％)天然浮石混凝土在冲击荷载下的动态力学性能.结果表明:随着PVA纤维掺量的增加,天然浮石混凝土的静态抗压强度增强,动态冲击压缩下破坏程度减弱;当应变率低于9...
|
| 关 键 词： | 天然浮石混凝土 聚乙烯醇纤维 动态力学性能 分离式霍普金森压杆 |
Study of Dynamic Mechanical Properties of PVA Fiber Natural Pumice Concrete |
| |
| HUO Jun-fang,QI Yu-xin,WANG Xiao-xiao,CAO Xue,LI Hai-qing.Study of Dynamic Mechanical Properties of PVA Fiber Natural Pumice Concrete[J].China Concrete and Cement Products,2021(3):56-61. |
| |
| Authors: | HUO Jun-fang QI Yu-xin WANG Xiao-xiao CAO Xue LI Hai-qing |
| |
| Affiliation: | (School of Civil Engineering,Inner Mongolia University of Technology,Hohhot 010050,China;Key Laboratory of Civil Engineering Structure and Mechanics,Inner Mongolia Autonomous Region,Hohhot 010050,China) |
| |
| Abstract: | Natural pumice concrete was prepared from natural pumice stone as coarse aggregate from Inner Mongolia,The dynamic mechanical properties of natural pumice concrete with different PVA fiber volume contents(0,0.15%,0.30%)under impact loads were analyzed by usingФ100 split hopkinson pressure bar(SHPB).The results show that with the increases of PVA fiber content,the static compressive strength increases,and the damage degree of the natural pumice concrete decreases.When the strain rate is lower than 96 s-1,0.30%PVA fiber natural pumice concrete has the best dynamic compressive strength.When the strain rate is higher than 127 s-1,0.30%PVA fiber natural pumice concrete absorbs the most energy,which is 11.0%higher than that of the natural pumice concrete without fiber. |
| |
| Keywords: | Natural pumice concrete PVA fiber Dynamic mechanical property Split hopkinson pressure bar |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
