Early-age shrinkage development of ultra-high-performance concrete under heat curing treatment
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- 关键词：Ultra-high-performance concrete (UHPC) ; Early-age shrinkage ; Heat curing ; Microstructure ; Thermal analysis ; Steel fiber
- 刊名：Construction and Building Materials
- 出版年：2017
- 出版时间：30 January 2017
- 年：2017
- 卷：131
- 期：Complete
- 页码：767-774
- 全文大小：1268 K
- 卷排序：131
文摘
A novel apparatus is developed to investigate the early-age shrinkage of UHPC during heat curing. The early-age shrinkage of UHPC after 48 h of heat curing is approximately 450 με. The early-age shrinkage decreases with the increase of longitudinal steel reinforcement ratio. Heat curing can accelerate chemical hydration of UHPC to generate dense microstructures.