Step 4. Analysis of Enhancement of various properties of black cotton soil

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Step 3. Addition of various proportion of stabilizer in soil

IV. RESEARCH METHODOLOGY

The above objective can be achieved by following steps 1) Step 1. Properties of stabilizer used in study. 2) Step 2. Properties of black cotton soil. 3) Step 3. Addition of various proportion of stabilizer in soil. 4) Step 4. Analysis of Enhancement of various properties of black cotton soil. 5) Step 5. Comparison of various test result on black cotton soil. 6) Step 6. Analysis of Result. 7) Step 7. Conclusion and Recommendation.

V. PROPERTIESOFSTABILIZERS:- RBI GRADE 81, LIME, CERAMIC DUST

RBI grade 81 appears to be Beige powder in nature having pH value of 12.5 (saturated paste) and having specific gravity of 2.5. Solubility of Rbi grade 81 in water is 0.2pts/100pts and It is a basic material, not acidic. Use exhaust ventilation to maintain dust levels below exposure limits in workplaces with poor ventilation and dusty conditions, storage temperature and pressure in unlimited, stored at dry place away from the water. Summary of the starting hydration reaction are as follows:

A. Add on of water initially hydrate all RBI GRADE-81 components, B. Lime mix dissipation creates excess Ca-ions and OH-ions, C. OH-ions rises the pH of the soil, in so doing activating the pH contingent sites on clays, D. Ca-ions interact with commutable and pH contingent sites on clays, forming calcium silicates and calcium aluminates hydration products, E. Hydration of calcium is very fast, F. Calcium at sites will form nucleation to cast the soil particles into a merged matrix, G. Ca-ions from the specified cement mix hydration, along with Ca-ions from the lime mix hydrated, will turn on the slang component, H. C3A initiate the hydration, I. Calcite formation will be restricted due to the reduction in nature of porosity, J. Initial reaction will be ended up with the final setting time of the lime mix approximately 120 minutes from a add on of water.

Ceramic dust is inorganic, non-metallic crystalline solid material make ready by heating and successive cooling. Today various types of ceramic materials are being used in the construction industry as well as in household works. Broken vitrified tiles are progressively used in the construction industry to meet the stabilizer requirements. Ceramic dust has higher level properties than natural stone dust and other types of tiles material. The basis material used for preparation of ceramic tiles consists of clay minerals and chemical additives. Waste ceramic tiles from tiles industries were broken into small pieces by hammer and crushed into powder form by automatic compactor. The crushed ceramic material was passed through 425 microns IS sieve. After sieving is done the ceramic dust has been used in the experimental works. Limestone appears to be yellow, white or grey in nature. It is a sedimentary rock having chemical composition of calcite (>50%), texture is clastic or non-clastic and generally hard. Limestone get crushed into powder form to use as stabilizer which is called as lime stabilization. Lime having pH value of 11-13, specific gravity of 2.65 to 3.0, bulk density (g/cm3) 0.7-1.1

VI. PROPERTIES OF BLACK COTTON SOIL

Black cotton soil appears to be black colour & expansive in nature. It is founded in in many parts of state like m p, u.p, Tamil Nadu & Telangana. black cotton soil is having clay mineral montmorillonite which provide swelling &shrinkage to the soil with change in moisture content soil exhibits different properties. Liquid limit from 50-95 & plasticity index from 15-55 & another one shrinkage limit from 5-20 %. these all properties depend on moisture content. they possess low strength & low bearing capacity. B.C soil possess high swelling & shrinkage which make them not suitable for pavement construction. Heavy damage may occur after each monsoon season. these are seen in terms of ruts differential settlement pot holes &cracks in the rigid pavement.