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In search of future construction material - recycled aggregates for concrete production

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dc.contributor.author Premasiri, ESY
dc.contributor.author Kariapper, ABY
dc.contributor.author Abeysinghe, AMGGMB
dc.contributor.author Karunarathne, S
dc.contributor.editor Hemalal, PVA
dc.date.accessioned 2022-07-06T05:47:11Z
dc.date.available 2022-07-06T05:47:11Z
dc.date.issued 2013-06
dc.identifier.citation Premasiri, E.S.Y., Kariapper, A.B.Y., Abeysinghe, A.M.G.G.M.B., & Karunarathne, S. (2013). In search of future construction material - recycled aggregates for concrete production. In P.V.A. Hemalal (Ed.), Proceedings of the 7th National Conference on Earth Resources Management (pp. 31-35). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18430
dc.description.abstract Properties of the recycled aggregates and the suitability of the same in structural concrete were studied and compared with those of natural aggregates. The results showed that the particle size distribution of recycled aggregates is compatible with those of natural aggregates. The recycled aggregates had abrasive and impact values of 48.7% and 27.10%, respectively while those of the natural aggregates were 29.5% and 11.45, respectively. Bulk density of recycled aggregates was 1065 kg/ m3 with compared to 1296 kg/ m3 of Natural aggregates and the water absorption was 2.82% with compared to 1.22 of Natural aggregates. The mix design proposed for concrete was grade 30. Properties of concrete made fewer than three testing scenarios consisting different proportions of natural aggregate to recycle aggregate as 50% -50%, 25%-75%, and 0%-100% were compared with those of 100% natural aggregates. With increasing percentage of recycled aggregate content, compressive strength, flexural strength, tensile splitting strength and workability were decreased. According to the results, grade 30 concrete properties could be achieved with mix proportions of 50% natural aggregate and 50% recycled aggregate, without significantly affecting the concrete properties, indicating a 50% saving of natural aggregates thus reducing environmental impacts and enhancing sustainability. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering en_US
dc.subject Water absorption en_US
dc.subject Compressive strength en_US
dc.subject Tensile splitting strength en_US
dc.subject Flexural strength en_US
dc.subject Workability en_US
dc.title In search of future construction material - recycled aggregates for concrete production en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2013 en_US
dc.identifier.conference 7th National Conference on Earth Resources Management en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 31-35 en_US
dc.identifier.proceeding Proceedings of the 7th National Conference on Earth Resources Management en_US
dc.identifier.email Shiromi27@yahoo.co.uk en_US


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