RECENT SUSTAINABLE DEVELOPMENT OF ULTRA-HIGH PERFORMANCE CONCRETE (UHPC)

Author(s): R. Yu, Z. Liu, X.P. Wang, Q.L. Song and Z.H. Shui
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 215-223
Total Pages: 9
Language : English

Abstract: 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.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00