RECENT SUSTAINABLE DEVELOPMENT OF ULTRA-HIGH PERFORMANCE CONCRETE (UHPC)
Ultra-high performance concrete (UHPC) is a relatively new building materials, which has superior durability, ductility and strengths in comparison with Normal Strength Concrete (NSC) and Fiber Reinforced Concrete (FRC) due to its extremely low porosity, dense matrix, high homogeneous system and the inclusion of various fibres.However, in recent years, due to the fact that more and more attentions have been paid on sustainable development and cleaner products, the high materials cost and high environmental impact of UHRC seem to be the main disadvantages that restrict its further development and application.Hence, to solve the problem mentioned above, a series of approaches have been proposed.In this study, based on the investigation by the authors, several key methods for developing eco-friendly UHPC are presented: 1) optimized design of UHPC particle packing skeleton;2) appropriate application of cementitious materials;3) appropriate application of aggregates;4) effective increase of steel fibre efficiency.Moreover, some detailed mechanism for the properties and microstructure development in the developed sustainable UHPC are also discussed.At last, based on a large amount of experimental results and analysis, the development trend for sustainable UHPC in near future is suggested.
Ultra-high performance concrete sustainable development optimized design efficient application mechanism analysis
R.Yu Z.Liu X.P.Wang Q.L.Song Z.H.Shui
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, China School of Materials Science and Engineering, Wuhan University of Technology, China
国际会议
福州
英文
191-199
2018-11-07（万方平台首次上网日期，不代表论文的发表时间）