Effect of fibre aspect ratio on mechanical properties of soil building blocks

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Abstract

Inclusion of fibres in soil blocks has been shown to enhance strength development. This study investigates the effect of aspect ratio of coconut, bagasse and oil palm fibres on the mechanical properties of soil blocks. Experiments were conducted on soil blocks with fibre aspect ratios (25-125) to determine the compressive and tensile strength of the blocks. Blocks with coconut and oil palm fibres showed increasing strength with increase aspect ratio, while bagasse fibres showed an initial increase followed by a decline at higher aspect ratio. The study concludes that generally longer aspect ratios produce better mechanical properties of soil blocks.

Keywords: soil blocks, agricultural waste fibres, compressive strength, splitting tensile strength, aspect ratio
Original languageEnglish
Pages (from-to)314-319
JournalConstruction and Building Materials
Volume83
Early online date21 Mar 2015
DOIs
Publication statusPublished - 15 May 2015

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