Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 77, Issue -, Pages 501-508Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2014.12.035
Keywords
High performance concrete; Recycled aggregate; Parent concrete strength; Property; UPV
Categories
Funding
- Hong Kong Polytechnic University
- Sun Hung Kai Properties Ltd.
Ask authors/readers for more resources
This paper presents the experimental results of a study on the effect of the quality of parent concrete (PC) on the properties of recycled aggregates (RAs) that are derived from them, and on the mechanical and durability properties of normal strength and high performance recycled aggregate concrete (NSRAC and HPRAC). PC with strength grades ranging from 30 to 100 MPa was crushed to the size of coarse aggregates (<20 mm), and then used to produce new NSRAC and HPRAC mixes. The results indicated that the compressive strength of the NSRAC and HPRAC prepared with RA derived from 80 and 100 MPa PCs was similar or slightly higher than that of natural aggregate concrete. Moreover, the concrete mixtures made with RA are derived from parent concrete with higher strength had lower drying shrinkage and higher resistance to chloride ion penetration. The RA derived from 80 and 100 MPa PCs can be used to replace 100% natural aggregates for the production of high performance concrete. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available