期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 178, 期 -, 页码 19-31出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.05.149
关键词
Recycled aggregates; Concrete; Sustainability; Fresh properties; Workability; Stability; Air content; Fresh density
资金
- CERIS-ICIST Research Institute
- IST - University of Lisbon
- FCT - Foundation for Science and Technology
This paper presents a literature review concerning the fresh properties of concrete containing recycled aggregates from beneficiated construction and demolition wastes. It starts with the identification of the main variables affecting the workability of concrete, such as the quality and moisture state of the recycled aggregates. The effectiveness of water-reducing admixtures and of mineral additions on the fresh properties of recycled aggregate concrete is also analysed. A brief insight is given on the influence of using recycled aggregates on the main characterizing parameters of the material's rheological behaviour. Other properties of recycled aggregate concrete in its fresh state are also discussed, including stability (i.e., bleeding and segregation), temperature of hydration, air content, and fresh density. (C) 2018 Elsevier Ltd. All rights reserved.
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