Through the optimized design of the mix proportion of self-compacting concrete for steel-shell immersed tube of Shenzhen-Zhongshan Link,the effects of expansive agent and super absorbent resin on the working performance and compressive strength of self-compacting concrete were discussed,and their effects on the early shrinkage and long-term shrinkage deformation were emphatically studied.The results show that adding appropriate amount of expansive agent and super absorbent resin can improve the working performance of self-compacting concrete,but it began to have an adverse effect on the workability and the strength when the addition amount continued to increase.Compared with expansive agent,adding super absorbent resin can more effectively improve the volume stability of self-compacting concrete.
维普
万方数据