Volume : 5, Issue : 11, November - 2016

Uses of steel slag in landfill cover liners

Shipra Chaubey, Avinash Mishra

Abstract :

<p>&nbsp;Local soil of Gorakhpur is not suitable for landfill cover liners due to low strength and high permeability. In order to enhance the soil strength, steel slag is added to soil in various proportions and checked for optimum moisture content, maximum dry density, CBR and permeability. Improvement in maximum dry density and CBR is found with increase in slag content, and at 25% required strength is achieved but permeability of soil is increased due to increase in slag content. Therefore, bentonite is added to soil with 25% of slag in different proportion and at 7% we have got the required permeability of order 10-9. Hence, slag can be used as a stabilizer but requires mixing of some admixture, in order to reduce its hydraulic conductivity</p>