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dc.contributor.authorKhatib, Jamal M.
dc.date.accessioned2008-01-09T15:32:28Z
dc.date.available2008-01-09T15:32:28Z
dc.date.issued2005
dc.identifier.citationCement and Concrete Research, 35(4): 763-769
dc.identifier.issn00088846
dc.identifier.doi10.1016/j.cemconres.2004.06.017
dc.identifier.urihttp://hdl.handle.net/2436/15904
dc.descriptionMetadata only
dc.description.abstractThe properties of concrete containing fine recycled aggregate are investigated. Recycled aggregate consisted of crushed concrete (CC) or crushed brick (CB) with particles less than 5 mm in diameter. The free water/cement ratio was kept constant for all mixes. The fine aggregate in concrete was replaced with 0%, 25%, 50% and 100% CC or CB. Generally, there is strength reduction of 15–30% for concrete containing CC. However, concrete incorporating up to 50% CB exhibits similar long-term strength to that of the control. Even at 100% replacement of fine aggregate with CB, the reduction in strength is only 10%. Beyond 28 days of curing, the rate of strength development in concrete containing either CC or CB is higher than that of the control indicating further cementing action in the presence of fine recycled aggregate. More shrinkage and expansion occur in concrete containing CC or CB.
dc.language.isoen
dc.publisherElsevier
dc.relation.urlhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWG-4F01171-1&_user=1644469&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000054077&_version=1&_urlVersion=0&_userid=1644469&md5=7e7b64396d45cb3cef6faf65a285b9c5
dc.subjectFine recycled aggregate
dc.subjectMechanical properties
dc.subjectNondestructive testing
dc.subjectExpansion
dc.subjectShrinkage
dc.titleProperties of concrete incorporating fine recycled aggregate
dc.typeJournal article
html.description.abstractThe properties of concrete containing fine recycled aggregate are investigated. Recycled aggregate consisted of crushed concrete (CC) or crushed brick (CB) with particles less than 5 mm in diameter. The free water/cement ratio was kept constant for all mixes. The fine aggregate in concrete was replaced with 0%, 25%, 50% and 100% CC or CB. Generally, there is strength reduction of 15–30% for concrete containing CC. However, concrete incorporating up to 50% CB exhibits similar long-term strength to that of the control. Even at 100% replacement of fine aggregate with CB, the reduction in strength is only 10%. Beyond 28 days of curing, the rate of strength development in concrete containing either CC or CB is higher than that of the control indicating further cementing action in the presence of fine recycled aggregate. More shrinkage and expansion occur in concrete containing CC or CB.


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