Open AccessImprovement in engineering properties of clay soil using waste demolished material
Author(s) -
Gaurav Jain,
Prem Prakash Pandit,
Manoj Narwariya
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1136/1/012045
Subject(s) - fly ash , expansive clay , atterberg limits , california bearing ratio , geotechnical engineering , subsoil , settlement (finance) , compressive strength , brick , environmental science , shrinkage , water content , waste management , geology , materials science , soil water , soil science , engineering , composite material , world wide web , computer science , payment
Expansive soil contain the highly active clay mineral in the form of montmorillonite due to which expensive soil swell upto 7% upon adding 1% of water, which may lead to unequal settlement of subsoil. The primary characterisation of clayey soil is which possess very poor shear strength with high shrinkage & swelling. This research paper represent a complete framework to overcome this drawback of highly expansive soil by adding waste material like fly ash and brick waste to clay soil in order to improve it’s engineering properties. Fly ash can be easily obtained from coal combustion plants while brick waste is easily available at demolition area. In this research fly ash is added in different percentages 0%, 4%, 8%, 12%, 16% and brick waste is added 5%, 10%, 15%, 20%, 25% by weight of soil. The results of test shown that the addition of fly ash and brick waste reduces the liquid limit, plastic limit value, plasticity index value, optimum moisture content value, percentage free swell index value and increases the unconfined compressive strength value and California bearing ratio value.