CONCRETE DETERIORATION AND ENVIRONMENTAL EXPOSURE TRIALS IN DUBAI, UAE . PROCEEDINGS OF 3RD INTERNATIOAL CONFERENCE ON DETERIORATION AND REPAIR OF REINFORCED CONCRETE IN THE ARABIAN GULF, BAHRAIN, OCTOBER 21-24 1989. VOLUME 1.

This article examines the relationship between concrete deterioration and exposure conditions in the typical Middle East coastal province of Dubai. The basic geomorphology and geochemistry of Dubai is described first, with special reference to chloride and sulphate concentrations. Analysis of concrete samples and a survey of the extent of cracking and deterioration of concrete structures from which the samples were taken was also undertaken. The relationship between chloride and sulphate concentrations, age, cracking, deterioration and exposure condition (location) were examined by statistical means. The results showed significant linear correlations between all of these parameters in each of the environments concerned except in elevated structures, where the only relationship found was between cracking and chloride content. Further research; carried out as part of the ACT (Advanced Concrete Technology) project is also described and compared with the earlier research results. In this project, mass concrete specimens either of normal or air entrained concretes made of 7 different mix categories were placed at various test sites, and the relative performance over 8 months was monitored and compared. The following tests were undertaken: sulphate and chloride ingress, depth of carbonation, salt weathering, resistance to chloride ion penetration, and compressive strength development. The effects of location, mix design and concrete type (normal or air entrained) upon concrete durability are analysed and discussed. For the covering abstract of the conference see IRRD 828897.

  • Corporate Authors:

    BAHRAIN SOCIETY OF ENGINEERS

    PO BOX 835
    Manama,   Bahrain 
  • Authors:
    • Anderson, G M
    • Sweeney, P J
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00604091
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM