Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 165, Issue -, Pages 64-71Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.01.035
Keywords
Recycled aggregates; Carbonation; High strength slag-cement mortar; Internal curing; Autogenous shrinkage; Dry shrinkage; Degree of hydration
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Funding
- Ministry of Land, Infrastructure and Transport Affairs of Korean Government [17SCIP-B103706-03]
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The internal curing effect of raw and carbonated recycled aggregates on the properties of high-strength slag-cement mortar was investigated. First, the aggregates were characterized using different methods and their effects on the shrinkage, drying mass loss, non-evaporable water content, and compressive strength of the mortar were evaluated. Their incorporation reduced the shrinkage and improves non evaporable water content, i.e., degree of hydration, with a slight reduction in compressive strength. Because of the carbonation of the aggregates, the mixtures incorporating carbonated aggregates show lesser improvements in non-evaporable water content and compressive strength than the ones with non-carbonated aggregates. However, the shrinkage property was better improved by the incorporation of the carbonated ones. (C) 2018 Elsevier Ltd. All rights reserved.
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