自密实高性能混凝土力学性能的研究与应用

ON MECHANICAL PROPERTY OF SELF-COMPACTING CONCRETE AND ITS ENGINEERING APPLICATION

以自密实高性能混凝土的配合比优化设计为基础,对自密实高性能混凝土的钢筋粘结锚固性能、受弯构件的抗弯、抗剪性能等进行了深入的试验研究。包括中强与高强自密实混凝土,共做了62个粘结强度拉拔试验、12根梁抗弯抗剪试验,研究结果为自密实混凝土结构的设计提供了参考。介绍了自密实高性能混凝土在3座高层建筑和1座厂房加固工程中的应用,总结了工程应用中的经验。

Based on the optimum design of mix proportion for self-compacting concrete, experimental study of self-compacting concrete was conducted. The anchorage bond properties between self-compacting concrete and steels and the flexure and shear properties of flexural members were investigated. Pull-out tests on bond strength of 62 members and flexure and shear tests on bearing property of 12 beams were performed. The results offer useful references for the design of self-compacting concrete construction. The engineering applications of self-compacting concrete in three tall buildings and a workshop reinforcement project are introduced.