Effect of HPMC on the Piezoresistivity of Smart Concrete Aggregate with Z Shape  

作　　者：WANG Haifeng YAN Handong MEI Zhen 王海峰;YAN Handong;MEI Zhen(College of Civil Engineering,Huaqiao University,Xiamen 361021,China)

机构地区：[1]College of Civil Engineering,Huaqiao University,Xiamen 361021,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2020年第4期768-777,共10页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Natural Science Foundation of Fujian Province(No.2016J01241);the National Natural Science Foundation of China(No.51608212)。

摘　　要：Cement mortar with carbon fiber(CFc)and resin-cement mortar with carbon fiber(CFrc)were used as inner and outer cores of smart aggregate with Z shape,respectively,which was used as the basic perception units to prepare smart concrete aggregate with a mosaic structure(SAMS).The hydroxpropyl methylcellulose(HPMC)was taken into consideration to improve the properties of mortar;by using HPMC,the structure of SAMS was optimized and its mechanical and electrical properties were evaluated.The experimental results show that the toughness of mortar could be improved by the complex that formed by epoxy resin,and the effect of HPMC on the flexibility of CFc was greater than that on the flexibility of CFrc;the feasible designing indicates that the CFc-Z core and CFrc-Z core could be used as inner and outer cores of SAMS.When the proposed dosages of HPMC in inner and outer cores are 0.35wt%and 0.2wt%,respectively,it could give an effective prediction for the damage of concrete during the loading process.

关 键 词：smart aggregate hydroxpropyl methylcellulose(HPMC) smart concrete PIEZORESISTIVITY 

分 类 号：TU528[建筑科学—建筑技术科学]