STUDY OF THE TRANSFORMATIONS OF ALUMINOUS HYDRATED CEMENTS. INFLUENCE OF CARBON DIOXIDE, TEMPERATURE, WATER CONTENT AND ADDITION OF POWDERED LIME

ESTUDIO DE LAS TRANSFORMACIONES DEL CEMENTO ALUMINOSO HIDRATADO. INFLUENCIA DEL ANHIDRIDO CARBONICO, TEMPERATURA, HUMEDAD Y ADICION DE CALIZA EN POLVO

This is an in-depth study of the mechanism of hydration and carbonation of aluminous cement. The authors report on the patterns of behaviour of aluminous cement and the interpretations of the x-ray diffraction diagrams, thermal analysis and infrared spectroscopy. Two possible mechanisms of carbonation of aluminous hydrated cement are discussed. The first mechanism is revealed during the combined action of carbon dioxide and alkalis acting mainly on aluminates of hexagonal calcium hydrates. The second mechanism of carbonation is through carbon dioxide gases. This type of carbonation acts mainly on the aluminates of cubic calcium hydrates which have a strong tendency to carbonation, particularly in a dry and warm environment. The authors demonstrate how the carbonation by carbon dioxide in the gaseous phase of cubic aluminate hydrates leads to a strong increase in the mechanical strength and the stabilisation of the binder manufactured. /TRRL/

  • Corporate Authors:

    Instituto Eduardo Torroja

    Costillares, Chamartin
    Madrid 33,   Spain 
  • Authors:
    • VAZQUEZ, J
    • Trivino, F
    • RUIZ, A
  • Publication Date: 1976-7

Language

  • Spanish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 107 p.
  • Serial:
    • Monografias
    • Issue Number: 334
    • Publisher: Instituto Eduardo Torroja

Subject/Index Terms

Filing Info

  • Accession Number: 00196851
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 29 1979 12:00AM