THE EFFECT OF GGBS ON THE DURABILITY OF CONCRETE

This paper reviews the effects of GGBS (Ground Granulated Blastfurnace Slag) on the durability of concrete, and the advantages and disadvantages of using GGBS against different forms of attack. The performance of GGBS is surveyed with respect to its protection against: (1) sulphate attack; (2) chloride attack; (3) alkali silica reaction; (4) acid attack; (5) sea water attack; (6) frost attack; (7) abrasion susceptibility; (8) protection of steel reinforcement; (9) thermal cracking; (10) sensitivity to curing; (11) sensitivity to early age temperature rise. It is suggested that GGBS is generally beneficial in extending the life of concrete, and that this effect is especially important where the attack is the result of the movement of aggressive ions. For example, partial replacement of Portland cement by GGBS generally increases the resistance of concrete to sulphate attack and chloride attack. The use of a minimum of 50% GGBS can be a suitable method of preventing alkali-silica reaction, if the alkalis are not contributed by sources other than cementitious materials.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00105317
• Corporate Authors:

  CONCRETE SOCIETY

  FRAMEWOOD ROAD
  WEXHAM,   United Kingdom  SL3 6PJ
• Authors:
  • Higgins, D
  • UREN, M
• Publication Date: 1991-9-10

Language

• English

Media Info

• Features: References;
• Pagination: p. 17-9
• Serial:
  • CONCRETE
  • Volume: 25
  • Issue Number: 6
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 0010-5317

Subject/Index Terms

• TRT Terms: Chlorides; Concrete; Corrosion; Durability; Improvements; Mix design; Prevention; Slag; Sulfates
• Subject Areas: Security and Emergencies;

Filing Info

• Accession Number: 00631998
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Created Date: Jul 1 1996 12:00AM