Prospect of Recycled Coarse Aggregate for Concrete Production in Nigeria

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dc.contributor.authorAmeh, O. J.
dc.contributor.authorEdike, U. E.
dc.date.accessioned2020-11-13T07:45:30Z
dc.date.available2020-11-13T07:45:30Z
dc.date.issued2014-06
dc.descriptionStaff Publicationsen_US
dc.description.abstractThe non-degradable nature of concrete waste from demolition and collapsed building sites, coupled with environmental degradation and exposure to heavy metals in the process of extracting aggregate constitute hazards to health and the environment. This study focused on the prospect of recycled coarse aggregate for concrete production. The coarse aggregate component of normal concrete was replaced with 25%, 50%, 75% and 100% Recycled Coarse Aggregate (RCA) in a 1:2:4 cement, sand and aggregate mix proportion and 0.5 water/cement ratio. Result shows that workability, saturated bulk density, compressive strength and flexural strength decreases with increase in RCA content in concrete. 100% manually recycled coarse aggregate concrete passed the 17 kN/m2 compressive strength limit generally acceptable for concrete work of non high strength requirement without additive. The research therefore recommends the use of recycled coarse aggregate concrete for plain low strength concrete elements for buildings. The economic benefit of RCA concrete includes efficient reuse of recovered coarse aggregate from demolished and collapsed buildings and to avert risk to health and the environmental.en_US
dc.identifier.citationAmeh, O. J. & Edike, U. E. (2014). Prospect of recycled coarse aggregate for concrete production in Nigeria. Covenant Journal of Research in the Built Environment, 2(1), 1-16en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/8918
dc.language.isoenen_US
dc.publisherCovenant Journal of Research in the Built Environmenten_US
dc.relation.ispartofseriesCovenant Journal of Research in the Built Environment;Vol.2(1)
dc.subjectCoarse aggregate recycled concreteen_US
dc.subjectEngineering propertiesen_US
dc.subjectSustainable constructionen_US
dc.subjectNigeriaen_US
dc.subjectResearch Subject Categories::TECHNOLOGY::Other technologyen_US
dc.titleProspect of Recycled Coarse Aggregate for Concrete Production in Nigeriaen_US
dc.typeArticleen_US
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