THE EFFECT OF DONKEY-DUNG ON THE PROPERTIES OF LATERITIC SOILCRETE BLOCKS
Publication Date : 01/02/2007
This paper reports the findings of an investigation into the effect of donkey-dung on lateritic soil stabilized blocks. Two major groupings of the lateritic soil samples commonly used in construction work were selected and treated with 0%, 2.5%, 5%, 7.5%, 10%, 12.5%, and 15% of finely ground donkey-dung dropping as additives. About 72 soilcrete block samples were moulded and cured for 28day and performance tests done for moisture absorption, resistance to water abrasion and compressive strength. The tests results showed that increasing the percentage addition of the donkey-dung in the lateritic samples up to 10- 15% improved remarkably the compressive strength, the resistance to water abrasion and reduction in dry shrinkage and water absorption qualities of the blocks. The strength improvement of the two samples at 15% donkey-dung is about 1.52N/mm2 which is greater than the minimum strength requirement of 1.5N/mm2 recommended by Nigerian Building and Road Research Institute, and hence the block is suitable for low cost building project.
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