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Strength and workability of masonry mortars manufactured with ladle furnace slag

Author

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  • Rodriguez, Ángel
  • Manso, Juan M.
  • Aragón, Ángel
  • Gonzalez, Javier J.

Abstract

Ladle furnace basic slag (LFS) is a by-product of the steelmaking process. It has rarely been recovered in the past and is usually disposed of in landfill sites. Despite containing stable chemical substances of great quality, some of which are potentially hydraulic, its practical applications have been limited. This paper discusses the attractive option of using LFS in the manufacture of masonry mortars for use in the construction industry, which requires an analysis of the principal characteristics of such mortars, i.e. workability and mechanical strength. It reports on a comparative study, using standard commercial admixtures, between conventional masonry mortars and mortars manufactured with LFS as a partial replacement for sand and cement, the results of which imply considerable economic savings in sand and cement, improvements in the properties of the mortars and in overall sustainability, by avoiding disposal and conserving natural resources.

Suggested Citation

  • Rodriguez, Ángel & Manso, Juan M. & Aragón, Ángel & Gonzalez, Javier J., 2009. "Strength and workability of masonry mortars manufactured with ladle furnace slag," Resources, Conservation & Recycling, Elsevier, vol. 53(11), pages 645-651.
    • Handle: RePEc:eee:recore:v:53:y:2009:i:11:p:645-651
    DOI: 10.1016/j.resconrec.2009.04.015
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    Cited by:

    1. Zhang, Tongsheng & Yu, Qijun & Wei, Jiangxiong & Li, Jianxin & Zhang, Pingping, 2011. "Preparation of high performance blended cements and reclamation of iron concentrate from basic oxygen furnace steel slag," Resources, Conservation & Recycling, Elsevier, vol. 56(1), pages 48-55.

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