Feasible Use of Recycled Concrete Aggregates in Self-compacting Concrete: A Review

Author(s): Tung-Chai Ling, Yuxuan Liu and Senthil Kumar K.
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 162-170
Total Pages: 9
Language : English

Abstract: Globally, large volumes of recycled concrete aggregate (RCA) are produced from construction and demolition works and are increasing over time. To overcome this issue, sustainable use of resources and finding better ways to manage construction and demolition (C&D) waste have been studied and explored. One of the most promising strategies is to introduce RCA into the production of new concrete. Unlike normal vibrated concrete, RCA used in making self-compacting concrete (SCC) has only been focused on and developed in the past 10 years. This paper presents an overview of the current research works published on the use of coarse and/or fine RCA in the production of SCC. The benefits and challenges of using RCA as natural coarse and fine aggregate replacement for SCC are presented. Accordingly, the high water absorption and porous structure of RCA have been particular
challenges for its use in producing SCC with high fluidity and good mechanical strength. However, some studies have demonstrated that a proper water compensative method as well as the use of supplementary cementitious materials could help enhance the overall properties of SCC prepared with RCA.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00