• Effect of silica sol of different routes on the properties of low cement castables

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Low cement Al2O3 castable; silica sol; ion exchange.

    • Abstract


      Silica sols synthesized through different routes viz. inorganic, organic and ion-exchange routes, have been incorporated in the low cement alumina castable composition in various proportions and cast samples in the form of 2 inch cube briquettes were prepared. The cast briquettes after curing were subjected to heat treatment at various temperatures. The effect of different sources of such sols on the important physico-mechanical properties of the castables such as bulk density, apparent porosity, compressive strength, volume shrinkage and residual strength after spalling have been studied. Some of the selected samples were also subjected to microstructural evaluation. It is observed that silica sol synthesized through cation exchange routes has significant beneficial role on the properties of castable with 3% addition.

    • Author Affiliations


      D Daspoddar1 Swapan Kr Das2 P K Daspoddar1

      1. Department of Chemical Technology, Calcutta University, Kolkata 700 009, India
      2. Refractories Division, Central Glass and Ceramic Research Institute, Kolkata 700 032, India
    • Dates

  • Bulletin of Materials Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.