COMPARATIVE SULPHATE RESISTANCE OF SRPC AND PORTLAND SLAG CEMENTS . DURABILITY OF BUILDING MATERIALS AND COMPONENTS. PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE HELD IN BRIGHTON, NOVEMBER 7-9, 1990

This paper reports on an investigation into the sulphate resistance of Portland cements and Portland blastfurnace slag cements having a range of slag levels. Mortar bars were immersed in magnesium sulphate (MgSO4) and sodium sulphate (Na2SO4) solutions with sulphate concentrations from 0.6 to 4.2%. Some of the slag cements performed relatively well in Na2SO4 solutions but were particularly vulnerable in MgSO4 solutions. None of the slag cements performed as well as the low C3A Portland cement. The performance of the composites was dependent on the properties of the base cements, and the properties of the slags and their substitution levels. Strength results ranging from 3 to 910 days indicated that slag levels which give a relatively good sulphate performance suffer from poor early strength. The alumina content of the slags appears to be a major factor influencing the strength development and sulphate performance. The sulphate resistance of slag cements can be improved significantly by targeted SO3 additions. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0419154809
• Corporate Authors:

  E and F Spon Limited

  2-6 Boundary Road
  London,   England 
• Authors:
  • Kollek, J J
  • LUMLEY, J S
• Publication Date: 1991

Language

• English

Media Info

• Features: References;
• Pagination: p. 409-420
• Serial:
  • Publication of: E and F Spon Limited
  • Publisher: E and F Spon Limited

Subject/Index Terms

• TRT Terms: Blast furnaces; Concrete; Conferences; Corrosion; Magnesium compounds; Portland cement; Slag; Sodium sulfate; Sulfates
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00617513
• 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