Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 160, Issue -, Pages 258-267Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.11.039
Keywords
Self-compacting concrete; Admixture; Flowability; Segregation and superplasticiser
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Funding
- Flow Process and Rheology Centre (FPRC) at the Cape Peninsula University (CPUT)
- PPC cement Ltd
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The effects of fly ash and slag on fresh and hardened properties of self-compacting concrete (SCC) were investigated using four CEM I 52.5 N cements produced at different factories according to ASTM C150, two polycarboxylate-acid based superplasticisers, two class F fly ashes and one slag. The differences in the cement characteristics were enough to affect the SCC flow properties. The compatibility of cement and admixtures depended mostly on the concentration of C(3)A, C2S/C3S ratio, the specific surface area of the cement and the type of superplasticiser used. A protocol to assess the sensitivity of a SCC mix design to a type of cement is proposed. (C) 2017 Elsevier Ltd. All rights reserved.
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