A loaded wheel test to determine the suitability of Assam and Meghalaya aggregates for microsurfacing

Microsurfacing is a mixture of dense-graded, crushed mineral aggregates, mineral filler (generally ordinary portland cement), polymer modified cationic emulsion, water and additives and is a cost effective preventive method. Microsurfacing has been known to bring a remedy to a broad range of problems on today's streets, highways and airfields. The Assam Public Works Department (PWD) in its effort to repair the road towards the airport and some of its urban roads has used microsurfacing as a trial preventive method. Therefore, the scope of this paper is limited to determining the physical properties of Assam and Meghalaya aggregates, the properties of the pre-mix and post-mix polyer added emulsion and loaded wheel test on microsurfacing specimens. Microsurfacing is of two types of aggregate gradations, Type II and Type III. In the present study, Type II gradation with 6% , 8% and 10% residual bitumen and Type III with 5%, 6% and 8% residual bitumen with and without fiber were studied. Loaded wheel test on specimens showed that microsurfacing with Meghalaya aggregate has better performance than microsurfacing made with Assam aggregate. Furthermore, this study shows that microsurfacing made with post-mix polyer added emulsion are performing better than microsurfacing made with pre-mix polymer added emulsion.

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  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Ryntathiang, Teiborland Lyngdoh
    • Jali, Ashok Kumar
  • Publication Date: 2013-10

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 23-32
  • Serial:
    • Indian Highways
    • Volume: 41
    • Issue Number: 10
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 01496232
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 21 2013 1:40PM