湖南农业大学学报（自然科学版）2017，Vol.43Issue(3)：336-339,4.DOI:10.13331/j.cnki.jhau.2017.03.021
冲击荷载下油菜秸秆灰分混凝土的动态力学性质
Dynamic mechanical properties of rape straw ash doped concrete under impact loading
摘要
Abstract
The dynamic mechanical properties of concrete doped with 10%, 15%, 20% and 25% percentage rape straw ash were studied by using theΦ80 mm split Hopkinson pressure bar test equipment under 0.3,0.45, and 0.65 MPa impact load. The results indicated that the strain rate of rape straw ash doped concrete was positively correlated with the loading pressure. The peak stress increased with an increase in the loading pressure. The highest change rate of peak stress was achieved to be 63.63% for the concrete doped with 10% percentage rape straw ash under different impact load. Under the same impact load, the peak stress of rape straw ash doped concrete decreased with the increase of the content of rape straw ash. Compared with the peak stress of the controlled concrete, only the concrete doped with 10% percentage rape straw ash was higher thanit. It is found that the dynamic bearing capacity of concrete was the best for the concrete doped with the10% percentage rape straw ash.关键词
冲击荷载/油菜秸秆灰分/混凝土/动态力学性质Key words
impact load/rape straw ash/concrete/dynamic mechanical performance分类
数理科学引用本文复制引用
齐臻,刘保华,易恋,曾哲,周雲..冲击荷载下油菜秸秆灰分混凝土的动态力学性质[J].湖南农业大学学报（自然科学版）,2017,43(3):336-339,4.基金项目
湖南省政府重大专项(湘府阅[2014]35号) （湘府阅[2014]35号）
湖南省教育厅青年基金项目(15B108) （15B108）
