An experimental study on shrinkage cracking of thin slab structure concrete with fly ash
PENG Weibing,HE Zhen,LIANG Wenquan,CHEN Meizhu(Wuhan University,Wuhan Huber 430072,China)
This paper reports an experimental study on the earlyage shrinkage cracking of concrete with fly ash. Experimental results indicate the following: firstly, the initial cracking time of mortar increase and free shrinkage decrease with the percentage of blended fly ash increasing. Secondly, different curing environment also do a more obvious effect on compressive strength of concrete with fly ash. Lastly, concrete tensile strength improves with the blended fly ash increase at some certain degree. Therefore, fly ash play a predominant role in concrete shrinkage cracking.