CAUSES, CONTROL AND CONSEQUENCES OF CRACKING IN REINFORCED CONCRETE

THIS PAPER DISCUSSES BRIEFLY THE VARIOUS BASIC TYPES AND CAUSES OF CRACKING IN REINFORCED CONCRETE. IT THEN COMPARES THE USUAL TEXTBOOK THEORY OF FLEXURAL CRACKING WITH THE 'NO-SLIP HYPOTHESIS'. PROPOSED AS A RESULT OF EXTENSIVE RESEARCH BY THE CEMENT AND CONCRETE ASSOCIATION, THE 'NO SLIP HYPOTHESIS' ASSUMES THAT, WITHIN CERTAIN LIMITS, FLEXURAL CRACKING IS AN ELASTIC PHENOMENON RESULTING IN CRACKS THAT ARE WEDGE-SHAPED IN CROSS-SECTION. IT IS SUGGESTED THAT, WHEN CRACKS ARE OF THIS TYPE, THEY DO NOT RESULT IN CORROSION OF THE REINFORCEMENT WHEREAS, WHEN THIS MECHANISM BREAKS DOWN, CORROSION IS PERMITTED. THE PAPER CONCLUDES BY NOTING THE PRESENT LACK OF KNOWLEDGE ABOUT THE MECHANISM OF THERMAL OR SHRINKAGE CRACKING IN LIGHTLY REINFORCED CONCRETE. /AUTHOR/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 3-13
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00214358
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS, ATRI
  • Created Date: Apr 8 1973 12:00AM