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Advances in Coal Bottom Ash Use as a New Common Portland Cement Constituent

  • Cristina ArgizEmail author
  • Esperanza Menéndez
  • Amparo Moragues
Conference paper
  • 136 Downloads
Part of the RILEM Bookseries book series (RILEM, volume 17)

Abstract

Cement new constituents can contribute to improve the sustainable of the construction materials and also, in many cases, enhance their durability. Coal bottom ash could be one of such new Portland cement constituents. Currently, they are dumped because are considered as wastes in some countries leading to generate an environmental problem. Therefore, in this paper, coal bottom ash used as a main constituent of Portland cements when it is mixed in an optimized proportion with fly ashes is studied. Mechanical and durable characteristics of standardized mortars made of mixes of coal combustion bottom and fly ashes are compared to mortars made of CEM I 42.5 N (EN 197-1:2011). Ash and cement mixes were designed in order to get similar compositions of CEM II/A-V, CEM II/B-V and CEM IV/A (V) cements according to the European standard EN 197-1:2011. Summing up, it can be said that bottom ash and fly ash mixes perform in the same way than common Portland cements made of fly ash.

Keywords

Common Portland Cement Cement Constituents Reference Mortar Alkali-silica Reaction Mortar Compressive Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The financial support of the Instituto Español del Cemento y sus Aplicaciones (IECA), under the Research Contract ‘Durable physico-chemical characterization of cement-based materials with industrial by-products’—AU 23-10 Contract, is gratefully acknowledged.

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Copyright information

© RILEM 2019

Authors and Affiliations

  • Cristina Argiz
    • 1
    • 2
    Email author
  • Esperanza Menéndez
    • 1
  • Amparo Moragues
    • 2
  1. 1.Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC)MadridSpain
  2. 2.E.T.S. Ingenieros de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Ciudad UniversitariaMadridSpain

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