INFLUENCE OF NATURAL POLYMER ON GEOTECHNICAL BEHAVIOR OF SILTY SAND

Abstract

ABSTRACT Soil roads are help to connect the network between rural and urban areas for peoples to survive their life and for their needs. There is need for a proper geometric design and good pavement condition. Due to increase in traffic and with high magnitude of wheel load causes rapid fractures in road pavements. So there is a need to improve the density and strength of sub grade soil. In this study a attempt is made for improving the geotechnical behaviour of silty soil using natural polymer. India is the largest consumer of sugar in world. In India every day million tons of sugar crushed and average gives a tons of sugar, molasses, bagasse and of press mud [4]. Initially it seems very costly but actually in practical way it proved to be economically. Hence experimental investigation has been carried out to study the influence of molasses geotechnical properties of soil. The important properties which are conducted in study are specific gravity, consistency limits, max dry density, optimum moisture content, California bearing ratio and unconfined compressive test. This study has to be carried out for utilization of cane molasses for improving the soil properties of sub-grade and properties of soil mix with molasses at different varying percentage. In this investigation cane molasses was used. Soil samples are prepared with varying percentage of cane molasses at 3%. 4.5%, 6%, 7.5%. The soil used in this study was silty sand (SM). The results show that with the use of molasses, there was increase in unconfined compressive strength and CBR value of soil. These results seem to be more effective and beneficial in modification of construction of road pavement. KEYWORDS: molasses, soil stabilization, CBR value.