THE DEVELOPMENT OF HIGH-STRENGTH MORTARS WITH IMPROVED THERMAL AND ACID RESISTANCE

Granulated blast furnace slag (GBFS), fly ash (FA), and silica fume (SF) are among the most effective mineral additives used in cement or concrete because of their cementitious or pozzolanic properties. This article reports on a study that investigated the effects of finely ground GBFS and SF on the properties of mortars. The amount of finely ground GBFS in a modified multicomponent binder (MMCB) was 50% and SF content varied from 5% to 15%. The compressive and flexural strength of plain mortars and mortars modified by SPs were determined. The thermal resistance within the range of 50-800 deg. C and acid resistance in 30% solution of HCl was investigated. The authors found that the enhancement of GBFS-Portland cement-based materials can be achieved with the help of silica fume (SF) and a superplasticizer (SP). These mortars, in addition to high strength, demonstrate high thermal and acid resistance. The authors conclude that these formulations can be recommended for application as a repair material in the chemical industry when high thermal or acid resistance is required.

  • Availability:
  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • Sobolev, K
    • Yeginobali, A
  • Publication Date: 2005-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00989014
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 29 2005 12:00AM