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Title: Early-age creep and shrinkage of blended cement concrete
Authors: Li, H.
Wee, T.H. 
Wong, S.F.
Keywords: Admixture
Blended cement
Early ages (of concrete)
Issue Date: Jan-2002
Citation: Li, H.,Wee, T.H.,Wong, S.F. (2002-01). Early-age creep and shrinkage of blended cement concrete. ACI Materials Journal 99 (1) : 3-10. ScholarBank@NUS Repository.
Abstract: This paper reports a study on the early-age creep and shrinkage of concrete with and without silica fume (SF), ground granulated blast-furnace slag (GGBS), and their combinations. The test parameters were water-binder ratio, aggregate content, partial replacement of cement by SF, GGBS, or both, as well as test conditions (drying versus sealed conditions). The stress-strength ratios at loading were fixed at 30% of the 3-day compressive strength and 20% of the 3-day tensile strength for compressive and tensile creep, respectively. The test environment was controlled at a temperature of 30 ± 2 C and a relative humidity (RH) of 65 ± 5%. The compressive and tensile creep together with drying and autogenous shrinkage were determined over 4 months of loading. The results obtained for plain, double-blended, and triple-blended concrete were assessed and compared to provide guidelines on the use of SF and GGBS in concrete structures subjected to early-age creep and shrinkage.
Source Title: ACI Materials Journal
ISSN: 0889325X
Appears in Collections:Staff Publications

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