DEVELOPMENTS IN THE MANUFACTURING AND USE OF PORTLAND LIMESTONE CEMENT

The short term performance aspects of portland limestone cements are compared with those of portland slag, fly ash and pozzolanic cements. The early activity of the portland limestone cements, as indicated by initial setting time, early strength and early heat release, is generally higher than that of the other cement types. Ultimate strengths are, however, lower provided moist curing conditions are maintained. The longer term performance characteristics of, concrete carbonation rate, freeze-thaw resistance, sulfate resistance and chloride penetration are also compared. Generally the performance of cements containing up to 25% limestone was satisfactory and within the range of performance of the portland cements from 4 different sources. Portland limestone cements with similar late strengths and superior early strengths to normal portland cements can be produced if active mineralized clinker is used as the basis of the cement. The environmental impact of cement manufacture is reduced with this type of cement. The effective utilization of portland limestone cements is dependant upon having appropriate cement and concrete standards in place. The European countries have largely achieved this and are in a good position to gain the economic and environmental advantages of portland limestone cement manufacture and use.

• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Moir, G K
  • Kelham, S
• Conference:
  • High-Performance Concrete: Design and Materials and Recent Advances in Concrete Technology. Proceedings of Third CANMET/ACI International Conference.
  • Location: Kuala Lumpur, Malaysia
  • Date: 1997-0-0 to 1997-0-0
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 797-819

Subject/Index Terms

• TRT Terms: Clinkers; High strength concrete; Limestone aggregates; Portland cement
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00746580
• Record Type: Publication
• Report/Paper Numbers: SP 172-42
• Files: TRIS
• Created Date: Mar 18 1998 12:00AM