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A review on alkaline activation: new analytical perspectives

Materiales de construcción (Madrid), 2014-01, Vol.64 (315), p.e022-24

ISSN: 0465-2746 ;EISSN: 1988-3226 ;DOI: 10.3989/mc.2014.00314

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  • Title:
    A review on alkaline activation: new analytical perspectives
  • Author: Palomo, A. ; Krivenko, P. ; Garcia-Lodeiro, I. ; Kavalerova, E. ; Maltseva, O. ; Fernández-Jiménez, A.
  • Subjects: Activation analysis ; alkali activation ; Alkalis ; aluminosilicates ; Cements ; Communities ; Consolidation ; Construction materials ; Control ; c‑s‑h gel ; geopolymers ; hybrid binder ; Mathematical analysis ; n‑a‑s‑h gel
  • Is Part Of: Materiales de construcción (Madrid), 2014-01, Vol.64 (315), p.e022-24
  • Description: For many years now the idea of including alkalis in a Portland cement matrix has been regarded as a daft or inexcusably erroneous proposition: despite its absurdity, that opinion has been widely accepted as a basic premise by the scientific and technical community working in the area of the chemistry of cement. In 1957 Glukhovsky proposed a working hypothesis in which he established a close relationship between alkalis and cementitious materials. That hypothesis has become consolidated and has served as a basis for developing a new type of binders, initially called "alkaline cements". The present paper reviews the most significant theoretical interpretations of the role played by alkalis in the formation of the "stony" structure of cement. It ends with a broad overview of the versatility of this type of materials for industrial applications and a discussion of the possibility of building on the existing legislation to meet the need for the future regulation of alkaline cement and concrete manufacture.Original Abstract: Hace algunos anos, la sola idea de la presencia de alcalis en una matriz de cemento Portland se consideraba casi como una aberracion, o como un error imperdonable; convirtiendose en un postulado basico (absurdo) ampliamente aceptado por la comunidad cientifica y tecnica vinculada a la quimica de los cementos. En 1957 Glukhovsky propuso una hipotesis en la que se establecia una estrecha relacion entre los alcalis y los materiales cementantes. Hoy dia nadie duda de que dicha hipotesis ha servido de base para el desarrollo de una nueva clase de materiales cementantes: "cementos alcali-nos". En el presente trabajo se hace una revision sobre los aspectos teoricos mas relevantes del papel de los alcalis en la formacion de estos conglomerantes. Tambien se da una vision generica de su versatilidad, desarrollo industrial y estado de la normativa actual para regular en el futuro la fabricacion de cementos y hormigones alcalinos.
  • Publisher: Consejo Superior de Investigaciones Científicas
  • Language: English;Spanish
  • Identifier: ISSN: 0465-2746
    EISSN: 1988-3226
    DOI: 10.3989/mc.2014.00314
  • Source: DOAJ Directory of Open Access Journals
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