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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: The Use of Foamcrete in Southern Africa
Author(s): E. P. Kearsley and H. F. Mostert
Publication: Special Publication
Appears on pages(s): 919-934
Keywords: Cellular concretes; fibers; fly ash; polypropylene fibers; reinforcing steels;
Abstract:Foamcrete, also known as foamed or cellular concrete is a lightweight material that can be used for the development of infrastructure to the benefit of disadvantaged communities. The objective of this paper is to discuss the tests conducted on foamcrete using South African materials. The cost of foamcrete can be reduced by replacing large percentages of the cement with ungraded ash. This replacement does not lead to noticeable reductions in compressive strength, but the shrinkage is markedly reduced. Reinforcing bars can be used in foamcrete but although no problems have been encountered with bond, the low shear strength of foamcrete can lead to premature failure. The use of chopped polypropylene fiber improves the shear behavior of small structural elements to the extend that the load-deflection behavior of foamcrete beams are similar to that of comparable normal concrete beams.
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