• ANANTA SHARMA
• Dr. Kulbir Singh Gill
• Gagandeepkaur Grewal

: From an engineering point of view, working on black cotton soil can be very challenging and this study is an attempt to find a possible solution for making black cotton soil workable. The extensive research in the field of geotechnical engineering and soil stabilization has provided us with some great solutions like use of lime, geopolymers etc. But the big question for our generation is, “Sustainability”. Keeping this aspect into consideration, combination of concrete waste dust and sea shell powder was investigated, making this project both practical and sustainable. The goal was to see if we could enhance the soil’s property by use of these stabilizers and then find an optimum percentage of each of these required to achieve the best possible results. The optimum moisture content and maximum dry density was found out at different percentages of CWD and sea shell separately followed by finding the unconfined compression strengths. Similarly the above stated tests were repeated for various possible combinations of CWD and SSP to find an optimum amount of both of these, required to obtain greater stability. The effect of 7- day curing was also studied. The UCS value 230kN/m² for virgin soil jumped to 600kN/m² for 15% CWD alone (optimum value) and 320kN/m² on adding 16% SSP alone (optimum value). The combination of CWD and SSP at optimum value, (16%)) in BCS showed dramatic effect on UCS value and increase was observed to be1800kN/m ² from 230kN/m² for virgin soil.

Black cotton soil(BCS), Seashell powder(SSP), Concrete Waste Dust(CWD), Optimum Moisture Content(OMC), Unconfined Compressive Strength(UCS), Differential Free swell index(DFSI).

"EFFECT OF CONCRETE WASTE DUST AND SEA SHELL POWDER ON PHYSICAL PROPERTIES OF BLACK COTTON SOIL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.570-577, April-2019, Available :http://www.jetir.org/papers/JETIR1904O93.pdf

"EFFECT OF CONCRETE WASTE DUST AND SEA SHELL POWDER ON PHYSICAL PROPERTIES OF BLACK COTTON SOIL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp570-577, April-2019, Available at : http://www.jetir.org/papers/JETIR1904O93.pdf