Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 114, Issue -, Pages 925-933Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.04.004
Keywords
Abrasion resistance; Cantabro loss; Flexural strength; GGBS; Surface abrasion loss; Roller Compacted Concrete
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In this experimental study, seven different mixtures of Roller Compacted Concrete (RCC) were adopted in which cement was partially replaced by six kinds of replacements (10%, 20%, 30%, 40%, 50% and 60%) of Ground Granulated Blast Furnace Slag (GGBS). The main objective of this experimental work was to investigate the effect of GGBS on the mechanical properties and abrasion resistance of RCC. Flexural, compressive, split tensile strength and abrasion resistance tests (Cantabro test and abrasion resistance with rotating cutter test) were conducted for the ages of 3 days, 7 days, 28 days and 90 days of curing. The strength values of RCC specimens were decreased for 3 days when GGBS content increased. But at the age of 7 days and 28 days the strengths were considerably higher than control mix concrete up to 50% replacement of GGBS. Beyond 28 days, the strength increases with the presence of GGBS up to 60% of replacement level. Also it was concluded that increasing GGBS content has increased abrasion resistance of RCC at all replacement levels. On the other hand there was a strong correlation exists between the GGBS content, weight loss with compressive, flexural and split tensile strength. (C) 2016 Elsevier Ltd. All rights reserved.
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