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Estimation of resource savings due to fly ash utilization in road construction

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  • Kumar, Subodh
  • Patil, C.B.

Abstract

A methodology for estimation of natural resource savings due to fly ash utilization in road construction in India is presented. Analytical expressions for the savings of various resources namely soil, stone aggregate, stone chips, sand and cement in the embankment, granular sub-base (GSB), water bound macadam (WBM) and pavement quality concrete (PQC) layers of fly ash based road formation with flexible and rigid pavements of a given geometry have been developed. The quantity of fly ash utilized in these layers of different pavements has also been quantified. In the present study, the maximum amount of resource savings is found in GSB followed by WBM and other layers of pavement. The soil quantity saved increases asymptotically with the rise in the embankment height. The results of financial analysis based on Indian fly ash based road construction cost data indicate that the savings in construction cost decrease with the lead and the investment on this alternative is found to be financially attractive only for a lead less than 60 and 90km for flexible and rigid pavements, respectively.

Suggested Citation

  • Kumar, Subodh & Patil, C.B., 2006. "Estimation of resource savings due to fly ash utilization in road construction," Resources, Conservation & Recycling, Elsevier, vol. 48(2), pages 125-140.
    • Handle: RePEc:eee:recore:v:48:y:2006:i:2:p:125-140
    DOI: 10.1016/j.resconrec.2006.01.002
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    References listed on IDEAS

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    1. Asokan, P. & Saxena, Mohini & Asolekar, Shyam R., 2005. "Coal combustion residues—environmental implications and recycling potentials," Resources, Conservation & Recycling, Elsevier, vol. 43(3), pages 239-262.
    2. Bhattacharjee, Ujjwal & Kandpal, Tara Chandra, 2002. "Potential of fly ash utilisation in India," Energy, Elsevier, vol. 27(2), pages 151-166.
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    Cited by:

    1. Canan Turan & Akbar A. Javadi & Raffaele Vinai & Ramiz Beig Zali, 2022. "Geotechnical Characteristics of Fine-Grained Soils Stabilized with Fly Ash, a Review," Sustainability, MDPI, vol. 14(24), pages 1-31, December.

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