Investigation of mechanical properties of SHCC incorporating metakaolin
LIU Zhengchao
WANG Yingjun
WEI Yunpang
SUN Mingqing
SHUI Zhonghe
Abstract：Strain hardening cement-based composites(SHCC) is prepared using metakaolin(MK) to replace cement with re-placement rates such as 0,5%,10% and 15%,respectively. The influence of MK on the basic mechanical properties of SHCC is investigated. Results show that the MK as admixture can obviously improve the mechanical properties of SHCC,namely,initial crack strength,ultimate tensile strength,ultimate tensile strain,elastic modulus and compressive strength of SHCC has been im-proved with different degrees,and the optimal dosage of MK is 10%. The addition of MK induces the improvement of the number of fine crack(the width of crack is tens microns) and decreasing of the average width of crack. MK can also improve the interfa-cial bonding properties of PVA fiber and cement matrix,and the interface bond strength improved.
Keywords：metakaolinSHCCtensile propertiesmonofil pull-out
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 4-7 )