The effect of cow dung on the mechanical and durability aspects of earth brick is discussed in this study. Cow faeces chemically stabilised a local earth. When 20% cow dung (by weight of soil) was utilised to stabilise the earth material, it resulted in higher dry and compressive strengths. The dry and wet compressive strengths of bricks stabilised with 20% cow dung content were 6.64 and 2.27 MPa, respectively. The dry compressive strength of bricks stabilised with 20% cow dung increased by around 25% over ordinary earth bricks without stabiliser. Water migration into the brick was reduced due to the 20% cow dung content (i e. lower permeability). Additionally, the abrasion resistance rose by up to 20% when the cow dung content was increased. The conclusion that suitable building design would be necessary to avoid the cow dung stabilised earth bricks from coming into direct contact with rainfall was substantiated by a significant increase in dry compressive strength over wet compressive strength. This study concluded that proper construction specifications are required to avoid extended direct contact with rainfall by cow dung stabilised earth bricks.
Author(S) Details
Peter Paa-Kofi Yalley
Department of Construction and wood Technology Education, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development (AAMUSTED), Ghana.
Dorothy Manu
Department of Construction and wood Technology Education, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development (AAMUSTED), Ghana.
View Book:- https://stm.bookpi.org/NVST-V7/article/view/4432
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