THE INFLUENCE OF THE QUALITY OF FILLER IN ASPHALTIC PAVING MIXTURES

An experimental investigation was carried out to evaluate the type of filler in dense graded asphaltic concrete. Commercial kaolin, crusher run dust and fly-ash from the Basin Bridge Thermal Power Station were used as fillers. The binder content and the filler content were varied keeping the coarse and fine aggregate constant (mean gradation of ASTD specification limits) to evaluate the strength and durability characteristics of the mixes. The test results clearly indicate that koalin is the best filler material through Basin Bridge fly-ash appears to be suitable only if added at a certain percentage. The superiority of kaolin as filler is mainly attributed to the grain size distribution, and the inferiority of Basin Bridge fly-ash as filler is attributed to its low specific gravity and high absorbing power. If the percentage of fly-ash filler is increased beyond a certain value, the voids content increases because of the above properties, and caution is needed in using this material as a filler. /AUTHOR/

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  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Sankaran, K S
    • Rajaaran
  • Publication Date: 1973

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 141-151
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00083326
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Paper No. 293
  • Files: ITRD, TRIS
  • Created Date: May 29 1975 12:00AM