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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/033/02/0185-0190

    • Keywords

       

      Fly ash; free CaO; reaction kinetics; curing; additives.

    • Abstract

       

      In the present work the reaction between fly ash and lime in fly ash–lime compacts under water curing and steam curing conditions was studied thoroughly in relation to the processing conditions. Fly ash from different sources were collected, characterized, mixed with lime in different ratios and compacted. The compacts were cured with water and steam separately. The reduction in the free CaO content in these compacts was measured as a function of curing time and curing process. Role of two ionic additives, FeCl3 and MgCl2, on the reaction between fly ash and lime was also investigated by measuring the free CaO content. Kinetics of these reactions was studied by determining the reaction order and rate constants with respect to the free CaO content and it was observed that the curing conditions and additives affected the reaction kinetics significantly.

    • Author Affiliations

       

      Saikat Maitra1 Farooq Ahmad1 Ananta K Das2 Santanu Das3 Binay K Dutta4

      1. Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
      2. Chemical Engineering Department, Durgapur Institute of Advanced Technology and Management, Durgapur 713 212, India
      3. Mechanical and Materials Engineering Department, College of Engineering and Computing, Florida International University, Miami, Fl 33174, USA
      4. Chemical Engineering Program, The Petroleum Institute, PO Box 2533, Abu Dhabi, United Arab Emirates
    • Dates

       

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