Shear Strength Behavior of Coal Mine Waste Stabilized by Cement, Lime and Fly Ash

Abstract

In this paper, description of the results of this study which was the determination of shear strength behaviour of coal mine waste stabilized by cement, lime and fly ash. The mine is found at Parbatipur upazila in Dinajpur, this is often the as it were dynamic mine in Bangladesh. Mining workplaces opened in Dhaka and exchange was helped by British Rail arrange in India. In 1962 the study found 1.05 million ton of coal in Jamalganj, Sunamganj Locale. The another huge revelation came in 1985 when Geographical Overview of Bangladesh found coal in Dinajpur. Bangladesh has an assessed 2 billion tonnes of coal in underground saves within the Northwest locale of the nation. Fine coal waste obtained from Barapukuria to ascertain its suitability for use as a construction material. Coal mine waste samples were tested by treating with cement, lime and fly ash. In the present investigation, laboratory test of Triaxial tests were conducted on waste samples added with various percentages of cement, lime and fly-ash by the weight of dry waste. It was observed that addition of about 1%, 3% and 5% cement, lime and fly ash to coal waste, increased the shearing strength significantly. The fine coal waste, alone or with cement, lime or fly ash admixtures, possesses acceptable strength characteristics. It appears from the test results that the fine coal waste used in this study can be properly stabilized for use in construction of highway subgrades.