Soil stabilization with ortho phosphoric acid and micro steel fiber

Abstract

In this paper chemical stabilization of black soil is focused since the stabilization of soil mainly depends on chemical reactions between stabilizer and soil minerals compared to the physical process of soils properties. The phosphoric acid stabilization of soils is a relatively new method of chemical stabilization. In this paper chemical stabilization process using California Bearing Ration (CBR) tests are conducted on the black soil with the three percentages say 2%, 5% and 7% of soil weight by adding 85% ortho-phosphoric acid. One of the research and development materials namely micro steel fibers are adopted in increasing percentages of 0.4%, 2%, 4%, 6%, 8%, 10% and 12% to the best soil proportion after determined from previous step to further increase the CBR value. The purpose of this investigation is to determine the effect of 85% ortho phosphoric acid and micro steel fiber treatments on the stability of cohesive soils and determine the best proportion of admixture soil properties among various.