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首页> 外文期刊>Agricultural Mechanization in Asia, Africa and Latin America: AMA >Soil as building material: a study to improve aggregate stability and compressive strength of earthen materials.
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Soil as building material: a study to improve aggregate stability and compressive strength of earthen materials.

机译：Soil as building material: a study to improve aggregate stability and compressive strength of earthen materials.

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摘要

An experiment aimed at identifying alternative building materials from soil and improving the strength of them was carried out using 2 soil types (Soil A and Soil B) and 4 stabilizers. The effect of microbial actions on aggregate stability of the different mixes was also considered. Cow manure, cement, sand and straw of Tef (Eragrostis tef) were the stabilizers selected to form a total of 15 mixes for the study. The compressive strength, extent of shrinkage, and cracks were the criteria used to evaluate the performance of the treatments. Nearly all stabilizers and microbial action induced significant extra compressive strength and reduced shrinkage than when using soil alone. Supplementing mud with caw manure improved the strength much better thanthe other alternatives. This effect was more pronounced when these mixes were subjected to microbial action. Generally, mixes with soil B performed better than with soil A with regard to compressive strength. However, soil B is prone to shrinkage and the formation of cracks. The more clayey soil (Soil B) performed less well when used with cement than did soil A and this was attributed to the interaction of clay minerals with cement.

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