Impacts of Fly Ash on Time-Dependent Properties of Agro-Waste Lightweight Aggregate Concrete

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dc.contributor.authorMaghfouri, Mehdi
dc.contributor.authorAlimohammadi, Vahid
dc.contributor.authorAzarsa, Pejman
dc.contributor.authorAsadi, Iman
dc.contributor.authorDoroudi, Yashar
dc.contributor.authorBalakrishnan, Balamohan
dc.date.accessioned2021-06-18T23:10:50Z
dc.date.available2021-06-18T23:10:50Z
dc.date.copyright2021en_US
dc.date.issued2021
dc.description.abstractThe utilization of by-products and waste materials to substitute for the natural or manufactured resources is considered as a practical way to obtain green building materials. In concrete mixtures, amongst the many available options, Fly Ash (FA) as a by-product pozzolan has been used as a partial replacement of cement. As for the aggregates, lightweight agro-waste oil palm shell (OPS) can be used as a replacement to conventional aggregate for the production of lightweight aggregate concrete. The present communication aims to investigate the impact of FA on time-dependent development properties of OPS lightweight aggregate concrete, including density, water absorption, compressive strength up to 120-days, and drying shrinkage up to the age of 365-days under standard moist curing, partially early curing, and non-curing conditions. Additionally, drying shrinkage crack development was investigated. In this study, two series of concrete mixtures with different substitution levels of OPS (0%, 50%, and 100%) and FA were tested. From the obtained results, it was concluded that the incorporation of fly ash in OPS concrete reduces the density and compressive strength values. Dually, the initial and final water absorption values plus the rate of drying shrinkage at early and long-term ages increased. On top of that, a high potential of drying shrinkage crack, especially for mixtures with 100% OPS, was identified.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.identifier.citationMaghfouri, M., Alimohammadi, V., Azarsa, P., Asadi, I., Doroudi, Y., & Balakrishnan, B. (2021). Impact of Fly Ash on Time-Dependent Properties of Agro-Waste Lightweight Aggregate Concrete. Journal of Composites Science, 5(6), 1-23. https://doi.org/10.3390/jcs5060156.en_US
dc.identifier.urihttps://doi.org/10.3390/jcs5060156
dc.identifier.urihttp://hdl.handle.net/1828/13045
dc.language.isoenen_US
dc.publisherJournal of Composites Scienceen_US
dc.subjectfly ash
dc.subjectoil palm shell
dc.subjectlightweight concrete
dc.subjectcompressive strength
dc.subjectdrying shrinkage
dc.subjectcrack development
dc.subject.departmentDepartment of Civil Engineering
dc.titleImpacts of Fly Ash on Time-Dependent Properties of Agro-Waste Lightweight Aggregate Concreteen_US
dc.typeArticleen_US

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