Suitability of Coal Bottom Ash and Carbonized Rice Husk in Hot Mix Asphalt

DOI
  • T. M. RENGARASU
    Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna
  • JUZAAFI Mohamed
    Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna
  • W.M.K.R.T.W. BANDARA
    Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna
  • JEGATHEESAN Nishanthini
    Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna

説明

<p>Aim of this study was to determine the suitability of carbonized rice husk (CRH) as bitumen modifier and coal bottom ash (CBA) as fine aggregate in hot mix asphalt (HMA). Bitumen was replaced with 5%, 10% and 15% rice husk ash. Marshall properties of HMA samples with CRH modified bitumen were evaluated and it was found that 11% of CRH replacement in bitumen produced highest Marshall stability and lowest optimum binder content. Fine aggregate was replaced with 3%,6%,9% and 12% CBA and it was determined that 9% of CBA replacement as fine aggregate produced highest Marshall stability with 60/70 penetration grade bitumen and lowest optimum binder content. Furthermore 6% of coal bottom ash as fine aggregate replacement with 11% CRH modified bitumen produced favourable results in terms of optimum binder content. However, Marshall stability of the asphalt samples prepared with CBA and 11% CRH modified bitumen was slightly lower than the conventional samples.</p>

収録刊行物

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詳細情報 詳細情報について

  • CRID
    1390283659846513536
  • NII論文ID
    130007790992
  • DOI
    10.11175/easts.13.1630
  • ISSN
    18811124
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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