BOND STRENGTH OF EPOXY COATED REINFORCEMENT . PROCEEDINGS OF 3RD INTERNATIOAL CONFERENCE ON DETERIORATION AND REPAIR OF REINFORCED CONCRETE IN THE ARABIAN GULF, BAHRAIN, OCTOBER 21-24 1989. VOLUME 1.

The current study was undertaken to determine whether design bond strengths for uncoated ribbed reinforcing bars in current codes of practice for structural concrete are suitable for use with coated bars. A second aim was to examine whether standardised bond test methods provide a satisfactory measure of bond performance in all practical circumstances. Reinforcement samples for test were supplied by Allied Bar Coaters, Cardiff. Successive lengths of bar were taken from the rolling mill, with half being sent for epoxy coating, and half remaining uncoated. Three bond test specimens were used, the BS4449 test, (see IRRD 815125), the RILEM pullout test, and the lap test specimen developed by Cairns and Jones to examine splitting bond failures. The results show that compliance with the BS4449 bond test does not ensure that a coated ribbed reinforcing bar will be capable of developing the design bond strength in BS8110 with an adequate margin of safety. Lap and anchorage lengths specified in BS8110 should be increased by 25% where FB epoxy coated reinforcement is used and cover is less than 3 times bar diameter. For the covering abstract of the conference see IRRD 828897.

• Corporate Authors:

  BAHRAIN SOCIETY OF ENGINEERS

  PO BOX 835
  Manama,   Bahrain 
• Authors:
  • CAIRNS, J
  • ABDULLAH, R
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 353-367
• Serial:
  • Publication of: BAHRAIN SOCIETY OF ENGINEERS
  • Publisher: BAHRAIN SOCIETY OF ENGINEERS

Subject/Index Terms

• TRT Terms: Adhesion; Conferences; Material reinforcement; Reinforced concrete; Reinforcing materials; Standards; Steel; Strength of materials
• Geographic Terms: United Kingdom
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00604092
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Feb 28 1991 12:00AM