Soil is very important in civil engineering constructions. The poor engineering properties of the local soils may present many difficulties for construction and therefore need to improve their engineering properties. Stabilization techniques can be used to improve the properties of soil. Soil stabilization improves various engineering properties e.g. bearing capacity, compressibility, strength, and various other properties of soil. In this study the impact of Red Mud to improve the strength of soil.An effective stabilizer i.e. RBI Grade-81(polymer) used as an chemical additive and can also be used in sub grade, sub base and base layer.The industrial waste like Fly Ash, Stone Dust, Red Mud etc. can be used with RBI Grade-81 as stabilizer to reduce the cost. The strength has been compared on the basis of CBR for virgin soil and soil with red mud with RBI grade un-soaked and soaked conditions.The result implies that when sub-grade is reinforced with Red mud & RBI grade-81 its CBR increases as for virgin soil and it increases for un-soaked & Soked condition.Red Mud & RBI grade-81 has a good potential to reduce the cost of pavement layers if weak sub- grade is encountered on the alignment.
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