Experimental Study on Early Age Anti-cracking Performance of Steel Fiber Lightweight Aggregate Concrete
Abstact:To study the early age anti-cracking performance of steel fiber lightweight aggregate concrete,in this paper,a partly-restrained shrinkage ring device with a partition was used to obtain the circumferential tensile stress and strain of the circular specimen.The experiment showed that the device can be used to accelerate the cracking of the concrete specimens.When the specimen is not cracked,the ratio of cir-cumferential tensile stress to splitting tensile strength can be used to compare the early age anti-cracking performance of steel fiber lightweight aggregate concrete.The larger the ratio,the worse the early age anti-cracking performance.
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