SOME PROBLEMS IN CONNECTION WITH HEAT CURING OF CONCRETE - TEMPERATURE GRADIENTS, MOISTURE MIGRATION AND CRACK FORMATION

NAAGRA PROBLEM IVD VAERMEBEHANDLING AV BETONG - TEMPERATURGRADIENTER, FUKTTRANSPORT OCH SPRICKBILDNING

This paper presents a summary of the most important factors which cause uncontrolled cracking in precast concrete components cured at elevated temperatures. The extremely high curing temperatures used in the modern precast concrete industry often give rise to great temperature gradients in time and in space, i.e. In structures, with the result that thermal deformation gradients and moisture gradients are produced in the concrete. In combination with the effect of water evaporation from the hot concrete surface, these gradients can cause the concrete to crack on the surface. On the basis of the author's experiences in the field, as well as those of others, the present paper discusses the conditions in the interior of the concrete subjected to various methods of heat treatment, and suggests some simple precautions which can be taken to prevent uncontrolled concrete cracking. (A) /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0029130700291307
• Corporate Authors:

  Nordiska Betongfoerbundet

  Fack
  10044 Stockholm 70,   Sweden 
• Authors:
  • Berge, O
• Publication Date: 1975

Language

• Swedish

Media Info

• Features: Figures; References;
• Pagination: p. 3-7
• Serial:
  • Nordisk Betong
  • Volume: 19
  • Issue Number: 4
  • Publisher: Nordiska Betongfoerbundet
  • ISSN: 002913070029-1307

Subject/Index Terms

• TRT Terms: Concrete; Concrete curing; Cracking; Heat; High temperature; Moisture content; Precast concrete; Temperature; Temperature gradients
• Uncontrolled Terms: Concrete cracking
• ITRD Terms: 4755: Concrete; 5211: Cracking; 4702: Curing (concrete); 6743: Heat; 5920: Moisture content; 4792: Precast concrete; 6722: Temperature
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00132259
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Jul 13 1976 12:00AM