Impact Resistance of a Novel Expanded Polystyrene Cement-based Material  

作　　者：朱洪波 LI Chen WANG Peiming WU Mengxue YAN Meizhu 

机构地区：[1]Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2014年第2期284-290,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Kwang-Hua Fund for College of Civil Engineering,Tongji University;the National Natural Science Fundation of China(No.41002093);the National Science and Technology Support Project of China(No.2012BAK24B04)

摘　　要：The mechanical property of a novel expanded polystyrene cement-based material （EPS-C）, which was prepared by compressing semi-dry materials molding, was investigated. The compressive behavior was analyzed by compression tests to gain the energy absorbed during failure. Performance for impact resistance was tested by a self-made device. The results figures out that the EPS-C has good toughness and can reach swain of 0.7 without failure. The stress-strain curve is quite different from that of normal EPS concrete. It can be divided into three stages and in the third stage the compressing exhibits the highest energy absorption. With the rising of cement ratio, the impact force absorption （IEA） decreases first and then increases. The impact energy absorption （IEA） increases first and then decreases. The lowest IEA and the highest lEA appear at the cement dosage from 233 g/L to 267 g/L and from 233 g/L to 300 g/L, respectively.The mechanical property of a novel expanded polystyrene cement-based material （EPS-C）, which was prepared by compressing semi-dry materials molding, was investigated. The compressive behavior was analyzed by compression tests to gain the energy absorbed during failure. Performance for impact resistance was tested by a self-made device. The results figures out that the EPS-C has good toughness and can reach swain of 0.7 without failure. The stress-strain curve is quite different from that of normal EPS concrete. It can be divided into three stages and in the third stage the compressing exhibits the highest energy absorption. With the rising of cement ratio, the impact force absorption （IEA） decreases first and then increases. The impact energy absorption （IEA） increases first and then decreases. The lowest IEA and the highest lEA appear at the cement dosage from 233 g/L to 267 g/L and from 233 g/L to 300 g/L, respectively.

关 键 词：expanded polystyrene （EPS） CEMENT compressing semi-dry materials molding compressive＇behavior impact resistance 

分 类 号：TQ172.7[化学工程—水泥工业]