EFFECT OF TEMPERATURE ON THE LEACHING PERFORMANCE OF A SIMULATED CEMENT-BASED IMMOBILIZATION SYSTEM. CALCIUM AND HYDROXYL BEHAVIOUR

The leaching behaviour of concrete at 20 degrees C and 40 degrees C has been studied by means of the ANSI/ANS-16.1-1986 test. Mixtures of a Portland cement (Type I-35) and a synthetic boiling water reactor (BWR) evaporator concentrate solution were prepared at solution/cement ratios of 0.53 and 0.65. After a curing period of 28 days, the samples were submitted to leaching attack in de-ionized water. Monitoring of leaching kinetics and analysis of the leached solid phases showed that the kinetics is controlled by diffusion. The degradation of the material over time is estimated from the calcium effective diffusivity.

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  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • Goni, S
    • HERNADEZ, M S
    • Guerrero, A
    • Lorenzo, M P
  • Publication Date: 1996

Language

  • English

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Filing Info

  • Accession Number: 00724236
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 19 1996 12:00AM