Characterization of Jarofix waste material for the construction of road

Jarosite is a waste material produced during extraction of zinc ore concentrate by hydrometallurgy operation. When it is mixed with 2% lime and 10% cement by weight, the resulting stable material is called Jarofix. The annual production of Jarofix material is about 5 lacs metric tons from Hindustan Zinc Ltd., Chittorgarh, Rajasthan state, India. The unutilized accumulated material is about 15 lacs metric tons. The material was collected from the disposal area and laboratory investigations were carried out to study its feasibility for use in the construction of embankment and subgrade layers of road pavement. Apart from studying the material individually, it was also mixed with local soil and bottom ash in the range of 25-75%, and their geotechnical characteristics were evaluated. This paper presents the results of physical, chemical and geotechnical characteristics of Jarofix, Jarofix-soil and Jarofix-bottom ash mixes. Technical specifications have been developed for the utilization of Jarofix material in the construction of embankment and subgrade layers of road pavement with or without mechanical stabilization with bottom ash/soil. Stability analysis of embankment is also presented along with a typical design cross section of pavement. From the x-ray diffraction, it was concluded that the Jarofix mainly contains a compound of plumbojarosite, calcite, hematite and zinc oxide. It is observed as polycrystalline, multi-phase in nature and having non-uniform shape and size of particles. It was also concluded that Jarofix (100%), Jarofix-soil mixes (50-75%) and Jarofix-bottom ash mixes (50-75%) have the potential for the construction of road embankment, while the Jarofix-soil and Jarofix-bottom ash mixes (50-75%) may be used for construction of subgrade layer of road pavement.

  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Sinha, A K
    • Havanagi, V G
    • Arora, V K
    • Ranjan, A
    • Mathur, S
  • Publication Date: 2013

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 35-43
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01526778
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 2 2014 12:37PM