Please use this identifier to cite or link to this item: http://ir.lib.seu.ac.lk/handle/123456789/3388
Title: An investigation of engineering properties of high strength concrete containing rice hush ash and recycle aggregates
Authors: Jeyakaran, T.
Dilushran, C.
Nivoshan, S.
Thamboo, J.A.
Keywords: High strength concrete
Recycled coarse aggregate
Rice Husk Ash
Compressive strength
Tensile strength
Young’s modulus
Issue Date: 2017
Publisher: Asian Institute of Technology
Citation: 8th International Conference on Structural Engineering and Construction Management, 2017
Series/Report no.: ICSECM2017;59
Abstract: Conventionally the concrete production is highly energy intensive and one of the main sources of greenhouse gas emissions in the World. The high strength concrete (HSC) is a trendy and effective solution for many structural applications. This concrete is particularly beneficial in compression members as it can endure higher stresses. In general the HSC requires the higher cement content and quality aggregates to achieve designated strength. However this process adds to the economy of the HSC production. Therefore replacement of supplementary cementitious materials and aggregates in HSC could lead to economical and sustainable manufacturing. Thus, the objective of this research is to investigate the effect of partial replacement of untreated rice husk ash (RHA) together with recycled coarse aggregate (RCA) on the engineering properties of HSC. Sixteen various mix propositions were examined by replacing the cement and natural coarse aggregates by RHA and RCA respectively to investigate the compressive and tensile strengths. Further the influences of untreated RHA and RCA on other engineering properties including air-entrainment, modulus of elasticity, workability were examined. Replacement of RCA up to 100 % did not significantly alter the strength properties of HSC. The addition of RHA up to 20% has reduce the compressive and tensile strength by only 10%.
URI: http://ir.lib.seu.ac.lk/handle/123456789/3388
Appears in Collections:Research Articles

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