Characteristics of Ordinary Portland Cement Paste Containing Rice Husk Ash and Conplast

Elinwa Augustine Uchechukwu; Johnson Olomi Olakunle; Samson Duna

doi:10.30564/jbms.v4i1.4144

Characteristics of Ordinary Portland Cement Paste Containing Rice Husk Ash and Conplast

Elinwa Augustine Uchechukwu (Civil Engineering Department, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria)
Johnson Olomi Olakunle (Works Department, University of Jos Teaching Hospital, Jos, Plateau State, Nigeria)
Samson Duna (Department of Civil Engineering, Abubakar Tafawa Balewa University, Bauchi, Nigeria)

Article ID: 4144

DOI: https://doi.org/10.30564/jbms.v4i1.4144

Abstract

An experimental investigation on rice husk ash (RHA) and Conplast SP 430 (CP-admixture) was carried out to evaluate their effects on the paste characteristics (soundness, consistency, initial and final setting times). The cement content used was 300g and the brand was ‘Ashaka’ Portland cement conforming to BS EN 12 1973. Various combinations of the mixtures OPC-RHA-CP-admixture were used to establish performance characteristics of the pastes. Statistical characteristics, and linear regression models (no-transformation, λ = 0.5, and Box-Cox transformation) were developed on the experimental data for decisions on their performances.

Keywords

Rice husk ash; Conplast SP 430, Paste characteristics; Statistics and Linear regression

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References

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