Bond characteristics of epoxy coated reinforced bars
Abstract
The flexural bond characteristics of epoxy coated reinforcing bars were evaluated in comparison to uncoated bars under static and fatigue loadings. Comparative tests were conducted between reinforcing bars with epoxy coated, normal mill scale and blast cleaned surface conditions. Both 6 and 11 bars were included. Forty flexural bond specimens of the beam and type were tested in static and fatigue loadings. Three embedment lengths were used in the tests. In addition, six slab specimens were tested to evaluate the effect of epoxy coating on concrete crack spacing and crack width. Behavior is assessed in terms of influence on crack spacing, crack width, bond strength and bond fatigue. Suggestions for design criteria modification are proposed.
- Publication:
-
Final Report North Carolina State Univ
- Pub Date:
- August 1982
- Bibcode:
- 1982ncsu.rept.....J
- Keywords:
-
- Bars;
- Bonding;
- Epoxy Resins;
- Fatigue Tests;
- Flexing;
- Reinforcement (Structures);
- Static Loads;
- Concretes;
- Embedding;
- Structural Design Criteria;
- Engineering (General)