LONG-TIME STUDY OF CEMENT PERFORMANCE IN CONCRETE-CHAPTER 9. CORRELATION OF THE RESULTS OF LABORATORY TESTS WITH FIELD PERFORMANCE UNDER NATURAL FREEZING AND THAWING CONDITIONS

THE RESULTS ARE SUMMARIZED AND EVALUATED OF LABORATORY TESTS SPANNING 14 YEARS OF THE LONG-TIME STUDY (LTS) CEMENTS AND CONCRETES CONTAINING THEM, AND FIELD TESTS UP TO 12 YEARS OF CONCRETES CONTAINING THE SAME CEMENTS. LABORATORY FREEZING AND THAWING TESTS OF CONCRETE CORRELATE WELL WITH FIELD PERFORMANCE IN SHOWING THE MARKEDLY IMPROVED DURABILITY OF AIR-ENTRAINED CONCRETES. INVESTIGATIONS SHOW QUITE CONCLUSIVELY THAT DAMAGE BY FREEZING AND THAWING IS A PHYSICAL MATTER AND IS NOT INFLUENCED BY THE CHEMICAL COMPOSITION OF THE CEMENT. AN OVER-ALL APPRAISAL OF THE RESULTS OF THE LONG-TIME STUDY TESTS TO DATE INDICATES THAT, OF THE MANY PHYSICAL TESTS MADE OF THE LTS CEMENTS, ONLY THE TEST FOR AIR CONTENT IS OF ANY VALUE IN INDICATING RELATIVE RESISTANCE TO FREEZING AND THAWING. /PCA/

• Authors:
  • Jackson, F H
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Air content; Cement; Chemical composition; Concrete tests; Field tests; Freeze thaw tests; Laboratory tests
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213509
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 60
• Files: TRIS
• Created Date: May 25 1970 12:00AM