Super-long structure concrete strain test and engineering application
TONG Lin1, JIA Xiang-hui2, FU Peng2, LIU Bin2
1.Beijing Construction of New Building Materials Co., Ltd., 100015, Beijing, China; 2.Beijing Construction Engineering Group Co., Ltd., General Contractor Dept, 100055, Beijing, China)
Abstract：
In this paper, through the strain monitoring of fly ash concrete and mineral powder concrete in super long structure concrete, the shrinkage law of concrete in the test block and entity using two kinds of admixture is discussed. The results show that the development law of the concrete block and wall strain of two kinds of admixtures is the same. Under the same solid condition, the mineral powder is about 170 με. The strain of fly ash concrete is about 110 με, which is much smaller than that of mineral powder concrete, which proves that the concrete shrinkage of concrete with single fly ash is smaller. At the same time, through the engineering practice application, summed up the control concrete shrinkage several aspects.
