相变储能混凝土的动态冲击压缩试验与分析  

The Dynamic Compressive Test and Analysis of Phase-changing Energy-storing Concrete

作　　者：武泽福 马芹永[1] 

机构地区：[1]安徽理工大学矿山地下工程教育部工程研究中心,土木建筑学院,淮南232000

出　　处：《科学技术与工程》2017年第30期302-306,共5页Science Technology and Engineering

摘　　要：采用变截面霍普金森压杆试验装置,对相变储能混凝土进行动态冲击压缩试验。相变储能骨料以膨胀珍珠岩为基体材料吸附硬脂酸丁酯制备而成的。对不同掺量的相变储能骨料与硅粉的混凝土进行动态冲击压缩试验。试验结果表明,相变储能骨料的掺加对混凝土的动态抗压强度会产生不利影响,随着掺量的增大相变储能混凝土的动态抗压强度逐渐降低;而硅粉能够提高混凝土的动态抗压强度,掺量在10%~15%之间效果最佳。The varying section and large size Hopkinson pressure bar test apparatus was adopt for the dynamic compressive test of phase-changing energy-storing concrete.Phase-changing energy-storing aggregate is used by expansion perlite as matrix material adsorption of butyl stearate.The dynamic compressive tests were performed on the concrete with different contents of phase-changing energy-storing aggregates and silica fume.Experimental results showed that phase-changing energy-storing aggregate had the adverse effect on the dynamic compressive strength of concrete.With the increase of the mixing ratio,the dynamic compressive of phase-changing energy-storing concrete will decreases gradually.Mixing the silica fume in concrete can enhance its dynamic compressive strength and the optimum content was 10% ~ 15%.

关 键 词：相变储能骨料 硅粉 混凝土 动态抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学]