Steel slag waste material for the construction of road

The utilization of waste materials, such as coal ash, copper slag, steel slag, jarofix, zinc slag, etc. in road construction industries is gradually gaining significant importance in India, in light of the disposal, environmental problems and gradual depletion of natural resources, such as soil and aggregates. Steel slag is a waste material generated as a by-product during the manufacturing of steel from steel industries. The quantity of generation is around 24 lacs MT per year from different steel industries in the state of Goa, India. Currently, it has no applications and is dumped haphazardly on costly land available near the plants. In this study a typical steel slag was collected from an industry in Goa and its feasibility for use in different layers of road construction was investigated. To improve its engineering properties, the material was mechanically stabilized with locally available soil in the range of 25 - 75%. Geotechnical parameters of these stabilized mixes were evaluated to investigate their suitability in the construction of different layers of road. Technical specification of steel slag is developed for utilization in the construction of embankment, sub grade and layers of road pavement. The material was also investigated for its feasibility in bituminous layers. This paper discusses geotechnical characteristics of slag, design and stability analysis of slag embankment, construction of sub grade and sub base layers, and suitability of slag in bituminous layers. It was concluded that slag may be used for the construction of embankment and subgrade. It was also concluded that about 40 to 50% of slag material may used to replace conventional aggregate for the construction of granular sub base layers, and it is not suitable for use in bituminous layers.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1790571
• Supplemental Notes:
  • Abstract reprinted with permission from the publisher.
• Authors:
  • Sinha, A K
  • Havanagi, V G
  • Mathur, S
• Publication Date: 2013-10

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 15-22
• Serial:
  • Indian Highways
  • Volume: 41
  • Issue Number: 10
  • Publisher: Indian Roads Congress
  • ISSN: 0376-7256

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Embankments; Feasibility analysis; Geotechnical engineering; Pavement layers; Paving; Slag; Stability analysis; Steel; Subbase materials; Subgrade materials; Wastes
• Geographic Terms: Goa (India)
• Subject Areas: Construction; Highways; Materials; Pavements; I31: Bituminous Binders and Materials; I33: Other Materials used in Pavement Layers; I40: Soils and Rocks; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01496253
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 24 2013 9:34AM