PETROGRAPHIC STUDIES ON CONCRETE CONTAINING SHRINKING AGGREGATE

PETROGRAPHIC TECHNIQUES HAVE BEEN USEFUL NOT ONLY IN DETECTING AND DIAGNOSING DISTRESS IN CONCRETE, BUT IN SUPPLYING NEW INFORMATION WHICH CONTRIBUTES TO A MORE COMPLETE UNDERSTANDING OF THE PHENOMENA INVOLVED. ONE TYPE OF DISTRESS IN CONRETE IS CAUSED BY THE USE OF AGGREGATES SUBJECT TO LARGE DRYING SHRINKAGE. SUCH AGGREGATES ARE COMMON IN ONE OR MORE LIMITED AREAS OF THE WORLD, BUT ARE RELATIVELY UNKNOWN ELSEWHERE. PETROGRAPHIC TECHNIQUES FOR STUDYING THESE CONCRETES ARE DESCRIBED HERE TOGETHER WITH CONCLUSIONS CONCERNING THE DISPOSITION OF STRESSES WITHIN THE CONCRETE WHICH RESULT FROM THE SHRINKAGE OF AGGREGATE. /PCA/

• Authors:
  • Roper, H
  • Cox, J E
  • Erlin, B
• Publication Date: 0

Media Info

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

Subject/Index Terms

• TRT Terms: Aggregates; Concrete; Concrete tests; Distress; Drying; Geological surveying; Petrography; Shrinkage; Stresses
• Old TRIS Terms: Petrographic investigations
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00213610
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 172
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM