CARBONIC ACID WATER ATTACK OF PORTLAND CEMENT BASED CONCRETES . DURABILITY OF BUILDING MATERIALS AND COMPONENTS. PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE HELD IN BRIGHTON, NOVEMBER 7-9, 1990

Concretes based on portland cement and blends of portland cement with ground granulated blastfurnace slag (GGBS), fly ash and silica fume were subjected to carbonic acid water attack. The concrete mixes were designed on the basis of equal 28-day strength. Samples were immersed in distilled water saturated with carbon dioxide for one or two week periods after which time the water was discarded and replaced with fresh aggressive water. Measurements and observations included mass loss, leachate water composition, changes in microstructure, based on surface water absorption, and depth of attack. The results show that, on the basis of mass loss, the GGBS and fly ash concretes performed better than the portland cement concrete while, on the basis of surface water absorption, there was very little difference in the performance of the different mixes. The paper also presents a critique of the test procedure and emphasises the limitations of the results thus obtained. This is relevant to other durability studies and carried out using similar techniques. (Author/TRRL)

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  • Corporate Authors:

    E and F Spon Limited

    2-6 Boundary Road
    London,   England 
  • Authors:
    • BALLIM, Y
    • Alexander, M G
  • Publication Date: 1991

Language

  • English

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Subject/Index Terms

Filing Info

  • Accession Number: 00617502
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-419-15480-9
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1992 12:00AM