Stabilization of Soil Using Sugarcane Straw Ash and Polypropylene Fibres

T. Suresh Reddy, Dr. D S V Prasad

Soils pose problems to civil engineers in general and to geotechnical engineers in particular. They cause damage to structure founded in them because of their potential to react to changes in moisture regime. Soil stabilization is the process of altering some soil properties by different methods, mechanical or chemical in order to produce an improvement soil material which has all the desired engineering properties. In this paper, sugarcane straw ash and polypropylene fibres were used at varying percentages are blending to stabilize the soil. Various geotechnical laboratory tests like compaction, Unconfined Compression Test and California Bearing Test were carried by varying the percentage of sugarcane straw ash (10% ,15%,20% and 25%) and polypropylene fibres (0.5%, 1.0% and 1.5%) respectively. It is found that 20 % increase in the percentage of sugarcane straw ash and 1% polypropylene fibres increases the UCS and CBR values.