2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 6: Coatings, Cement, Rare Earth & Ferro-alloys

Editors:Kongoli F, Yildirim H, Hainer S, Hofmann K, Proske T, Graubner C.A., Albert B
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:200 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Green Concrete as a Useful Resource in Low-cost Rural Housing and Development

    Clinton Aigbavboa1; Emmanuel Agbenyeku2;
    1UNIVERSITY OF JOHANNESBURG, Johannesburg, South Africa (zuid Afrika); 2UNIVERSITY OF JOHANNESBURG, Johannesburg, South Africa;
    Type of Paper: Regular
    Id Paper: 505
    Topic: 9


    The study utilized two locally abundant materials; Cassava Peels Ash (CPA) and Laterite as constituents for rural projects. The availability of these materials in West-Africa permitted the study. Partly blending Ordinary Portland Cement (OPC) and Sand with an agricultural waste-CPA and Laterite respectively against the effect of short-term hydration on the products compressive strength were investigated. 192 cubic specimens of 100 mm dimensions were cast and cured in water for 7, 14, 21, and 28 days, adopting a control of 28 day-25 N/mm2 targeted strength. The OPC/CPA and sand/laterite substitute ratios were 0-30% with views to determine the best substitute matrix. Density and compressive strength decreased with increased CPA and laterite content. However, strength development increased over hydration ages. 28 days density and compressive strength of the normal concrete were 2385 kg/m3 and 27.05 N/mm2 while the best matrix (10% CPA+10% laterite) had 2322 kg/m3 and 25.57 N/mm2 respectively. The strength of the green concrete was higher than the adopted strength at 28 days, which makes it suitable for use. It can be used without compromising standards in simple foundations and masonry units as a prime cost reduction in rural housing and development.


    Agriculture; Concrete; Environment; Sustainability; Waste;


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    Aigbavboa C and Agbenyeku E. Green Concrete as a Useful Resource in Low-cost Rural Housing and Development. In: Kongoli F, Yildirim H, Hainer S, Hofmann K, Proske T, Graubner C.A., Albert B, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 6: Coatings, Cement, Rare Earth & Ferro-alloys. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 81-90.