东南大学学报（英文版）Issue(3)：348-352,5.DOI:10.3969/j.issn.1003-7985.2014.03.017
养护制度对超高性能纤维增强水泥基复合材料微观结构及宏观性能的影响
Influence of different curing regimes on the microstructure and macro performance of UHPFRCC
摘要
Abstract
This study investigates the influence of different curing regimes on the microstructure and macro properties of ultra-high performance fiber reinforced cementitious composite UHPFRCC and aims to discover whether it is possible to produce qualified UHPFRCC using different curing regimes. A control mix of UHPFRCC is prepared.The mechanical performance and the short-term durability of the UHPFRCC matrix under three curing regimes are studied.In addition the microstructures of the UHPFRCC matrix with different curing conditions are analyzed by combining scanning electron microscopy SEM and mercury intrusion porosimetry MIP . The results explore how different UHPFRCC curing regimes affect its microstructure and how the microstructure affects its macro behavior.Heat and steam curing for 3 d is succeeded to produce the UHPFRCC with nearly the same mechanical properties and durability as those of the 90 d standard curing. However the heat cured UHPFRCC does not show great resistance to chloride-ion penetration.关键词
超高性能纤维增强水泥基复合材料/养护制度/耐久性/微观结构Key words
ultra-high/performance fiber reinforced/cementitious composite/UHPFRCC curing/regimes durability/microstructure分类
建筑与水利引用本文复制引用
Saly Fathy,孙伟..养护制度对超高性能纤维增强水泥基复合材料微观结构及宏观性能的影响[J].东南大学学报（英文版）,2014,(3):348-352,5.基金项目
The Scholarship Supported by the China Scholarship Council the Technical Research Program from NV Bekaert SA of Bel-gium the National Natural Science Foundation of China No．50908047． Citation Saly Fathy Sun Wei．Influence of different curing regimes on the microstructure and macro performance of UHPFRCC J ．Journal of （）
