详情

原文传递 WASTE TO WEALTH MISSION - USE OF INDUSTRIAL WASTES FOR ROAD EMBANKMENT AND SUBGRADE CONSTRUCTION

题名：	WASTE TO WEALTH MISSION - USE OF INDUSTRIAL WASTES FOR ROAD EMBANKMENT AND SUBGRADE CONSTRUCTION
正文语种：	eng
作者：	Sanjay Kumar Nirmal
摘要：	India is undertaking large scale infrastructure development projects in the country through different programmes viz. Bharatmala, National Highway Development Programme (NHDP); Pradhan Mantri Gram Sadak Yojana (PMGSY) and other State-sponsored programmes. Considering the magnitude of the road infrastructure projects carried out in the country, there is a stress on natural resources and are depleting very fast. Restrictions on quarrying also have increased the lead distances, increasing significantly the total cost of road construction. The availability and need for suitable construction materials are very significant and account for about 30-40% of the total cost of construction. In this context, the cost of road projects currently planned can significantly come down, with the utilization of locally available waste material, also recognised as "Industrial By-Products" or IBP. Considering the low (even negligible) landed costs of such locally available waste materials, the highway planners could come up with more ambitious highway/road projects, significantly increasing the magnitude of length, coverage and connectivity. The conventional road construction technology is primarily dependent on natural borrow soil and aggregates quarried from a rock. Typically, in developed urban and industrial areas, natural borrow sources are scarce, expensive, and/or inaccessible. The environmental degradation caused due to the use of topsoil for embankment and subgrade construction is very high. Quarrying of aggregates from rock deposits underlying overburden also results in loss of forest lands, noise, dust, vibrations and flying debris due to blasting, pollution hazards leading to environmental hazards. Hence there is an urgent need to find new alternative materials for road construction which would not only reduces the total cost of the project but also protect our environment and results in sustainable road construction.
出版年：	2022
期刊名称：	Indian Highways
卷：	50
期：	11
页码：	4-5