REVIEW ON SOIL STABILIZATION USING BAGASSE ASH WITH LIME AND MOLASSES WITH CEMENT

In Ethiopia with the increasing of population and the scarcity of available land, most of the agricultural lands become construction sites. Such agricultural lands are black cotton soil which has high swelling and shrinkage property when exposed to changes moisture content and poor in shear strength, the soil should be treated or replaced by a suitable material to improve its mechanical property before any construction work is undertaken. This study reviews Expansive soil stabilization techniques using Sugar cane bagasse ash with lime and sugar cane molasses with cement. Bagasse ash contains large amount of silica which is the most important component of cement replacing material. Sample soils with molasses application had a relatively higher strength, lower plasticity index and swelling potential than the native soil. The paper discusses the engineering properties of expansive soil in detail and expounds some main methods of improving expansive soil with bagasse ash with lime and molasses with cement. A number of documents related with bagasse ash and molasses were reviewed and analyzed. This work focused on reviewing experimental papers on Sugar cane bagasse ash & molasses by observation of effect of bagasse ash and molasses on some geotechnical properties of black cotton soil which are relevant for evaluating the performance of soils. Data for this study were obtained by document analysis of existing literature and secondary experimental research papers when a small amount of lime was mixed with bagasse ash and when molasses mixed with cement. And comparison is made from the trials made on both experimental papers. A comparison between the two experimental researches was made based on the improved geotechnical property of the stabilized expansive soil. The finding of this study will indicate a suitable stabilization technique based on Setting time effect, California Bearing Ratio (CBR) value, Unconfined Compressive Strength value, Atterberg limit test and cost of the stabilizing technique