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Effectiveness of Rice (Oryza sativa) Hull ash (RHA) as partial replacement of cement in the properties of concrete exposed in coastal conditions

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dc.contributor.authorAmoyen, Jinggoy M.
dc.date.accessioned2026-10-26T02:36:28Z
dc.date.available2026-10-26T02:36:28Z
dc.date.issued2023-05
dc.description.abstractThe silica content of the ricehull ash (RHA) gives it the pozzolanic property which makes it a suitable replacement for ordinary Portland cement. This study aimed to determine the effect of RHA, as partial cement replacement, on concrete's workability, permeability, and compressive strength. Also, it aimed to compare the changes in compressive strength before and after exposure to coastal conditions and perform a cost analysis of concrete mixtures. This experiment used three treatments (5%, 10%, 15%) level of RHA, a partial replacement to cement. This study concludes that replacing cement with RHA resulted in low workability and lower chloride penetration. Also, replacing cement of up to 10% RHA has comparable compressive strength with pure concrete before exposure to coastal conditions. Replacing 5% to 15% of RHA has comparable compressive strength with pure concrete after exposure to coastal conditions. Using RHA replacement has a lower production cost than pure concrete.
dc.identifier.citationAmoyen, J. M. (2023). Effectiveness of Rice (Oryza sativa) Hull ash (RHA) as partial replacement of cement in the properties of concrete exposed in coastal conditions. [Unpublished Undergraduate Feasibility Study, Don Mariano Marcos Memorial State University - North La Union Campus, Sapilang, Bacnotan, La Union]. Lakasa ti Sirib, DMMMSU Institutional Repository.
dc.identifier.urihttps://lakasa.dmmmsu.edu.ph/handle/123456789/2852
dc.language.isoen_US
dc.publisherDon Mariano Marcos Memorial State University - North La Union Campus
dc.sdgSDG 9
dc.sdgSDG 11
dc.sdgSDG 12
dc.subjectRice hull ash
dc.subjectCement replacement
dc.subjectConcrete properties
dc.subjectCoastal conditions
dc.subjectSustainable construction materials
dc.subjectAgricultural waste utilization
dc.subjectConcrete durability
dc.subject.lcshConcrete
dc.subject.lcshRice hull ash
dc.subject.lcshCement
dc.subject.lcshBuilding materials
dc.subject.lcshgricultural wastes as building materials
dc.subject.lcshSustainable construction
dc.titleEffectiveness of Rice (Oryza sativa) Hull ash (RHA) as partial replacement of cement in the properties of concrete exposed in coastal conditions
dc.typeThesis
dspace.entity.typePublication
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