• Arun Kumar

Soil is a primary engineering material for highway construction and maintenance. Most highway authorities successfully identify and manage the physical properties of soil when undertaking highway construction and maintenance. However, identification and management of soil chemical properties and soil landscape processes, and in particular, how they may influence highway construction and maintenance now, and in the future, is highly variable. Using soil as an engineering medium requires the removal of biological properties, alteration of chemical properties and reduction/removal of the physical properties (e.g. bulk density, water entry rate, porosity and hydraulic conductivity) of a soil. However, soil physic chemical properties may present hazards to engineering, and these risks need to be identified and managed as part of project design, assessment, maintenance and management. Soil chemical properties such as acidity, sodicity and salinity may corrode concrete and steel structures and highway furniture or cause land degradation in the area of the highway. Assessment of these properties and the soil and landscape processes that affect them will be essential to the future integrity of highway assets.

Sodicity, Acidification, Salinity, Highway, Construction.

"A Review on Importance of Soil Material in Highways Constructions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.443-450, May-2018, Available :http://www.jetir.org/papers/JETIR1805268.pdf

"A Review on Importance of Soil Material in Highways Constructions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp443-450, May-2018, Available at : http://www.jetir.org/papers/JETIR1805268.pdf