Effect of Scatter-filling Recycled Aggregate on Properties of High-fluidity Concrete

Title: Effect of Scatter-filling Recycled Aggregate on Properties of High-fluidity Concrete
Author(s): Deyu KONG, Haicun FANG, Jun JIANG, Biao GENG
Paper category : conference
Book title: 2nd International Conference on Waste Engineering and Management - ICWEM 2010
Editor(s): J.Zh. Xiao, Y. Zhang, M.S. Cheung and Reuben P. K. Chu
Print-ISBN: 978-2-35158-102-5
e-ISBN: 978-2-35158-103-2
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 166 - 172
Total Pages: 7
Nb references: 12
Language: English

Abstract: Effects of scatter-filling recycled coarse aggregate (RCA) on properties of high fluidity concrete were investigated in this paper. The results showed that uniformity and compressive strength of the hardened concrete at 3 and 28 days can be obviously improved while scatter-filling RCA with higher strength than that of the hardened high-fluidity concrete.
However, properties of the hardened high-fluidity concrete were dependent on the volume percent of the RCA scatter-filled when the origin concrete of the RCA showed obviously lower strength than that of the hardened high-fluidity concrete. The compressive strength at 3 and 28 days were clearly enhanced and the autogenous shrinkage was obviously reduced while scatter-filling less than 30% of the RCA in the high-fluidity concrete. However, scatter-filling more than 40% of the RCAwill result in decrease of the strength at 28 days.

Online publication: 2011-01-25
Publication type : full_text
Public price (Euros): 0.00