WATER DESORPTION ISOTHERMS OF CEMENT MORTAR WITH FLY ASH . NORDIC CONCRETE RESEARCH. PUBLICATION NO 8

This investigation shows the water sorption isotherms of ordinary Portland cement mortar incorporated with pulverized fly ash (PFA). The variation in the mixture proportions are: PFA to binder ratio from 0 to 0.60, water to binder ratio from 0.36 to 0.60, and sand to binder ratio from 1 to 4. Based on the systematic experimental design, the analysis quantitatively shows the relations between the mixture proportions and the properties of mortar. It is shown here that the moisture content in mortar mainly depends on the amount of cementitious materials in the mortar. The sorption isotherm changes with the addition of fly ash and the variation in water to binder ratio. The carbonation can greatly influence the desorption isotherm and the pore size distribution. This paper shows the pore size distribution of the mortar calculated according to the desorption isotherm by taking the adsorbed water film into account.(A) For the covering abstract see IRRD 828653.

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  • Corporate Authors:

    NORDIC CONCRETE FEDERATION

    KRONPRINSENSGT 17
    Oslo 2,   Norway 
  • Authors:
    • AIMIN, X
  • Publication Date: 1989-12

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00604972
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM