MODELING DRYING SHRINKAGE STRESS GRADIENTS IN CONCRETE

Cracking is a problem for the serviceability, durability, and aesthetic quality of concrete structures and pavements. The potential for drying shrinkage cracking in concrete is related, in part, to the development of a moisture gradient across the cross-section of the concrete element. This article reports on a model that has been developed that incorporates experimental measurements of internal relative humidity to investigate drying shrinkage stress gradients in concrete specimens. The authors outline the experimental and analytical procedure for using the model. The authors conclude that initial research involving application of the model has indicated that there is a relationship between drying stress gradient severity and the time to cracking under full restraint. Further development of the model could involve combination with fracture models to investigate microcrack formation and propagation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
• Corporate Authors:

  ASTM International

  100 Barr Harbor Drive
  West Conshohocken, PA  United States  19428-2959
• Authors:
  • Grasley, Z C
  • Lange, D A
• Publication Date: 2003-12

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 115-122
• Serial:
  • Cement, Concrete and Aggregates
  • Volume: 26
  • Issue Number: 2
  • Publisher: American Society for Testing and Materials (ASTM)
  • ISSN: 0149-6123
  • Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html

Subject/Index Terms

• TRT Terms: Concrete; Cracking; Cracking of concrete pavements; Drying; Humidity; Moisture content; Shrinkage; Stresses; Structural models
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements; I32: Concrete;

Filing Info

• Accession Number: 00986563
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 22 2005 12:00AM