A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Structural Effects of Epoxy Coating Disbondment
The study was conducted at the Turner-Fairbank Highway Research Center from September 1992 to December 1992. The study consisted of three phases. Phase 1 documented induced disbondment of epoxy-coated reinforcing steel by means of an electrochemical process. The result was epoxy-coated rebar with between 20- to 30-percent disbondment. The degree of disbondment is significant. Phase 2 conducted experiments designed to test the effects of the degree of disbondment upon the flexural capacity of reinforced concrete slabs. Control slabs were fabricated with plain (uncoated bars) and untreated epoxy-coated bars. Identical test slabs were fabricated with the disbonded bars. These were tested to failure in positive and negative moment. The results showed some difference in the positive moment test and essentially no difference in the negative moment test. The differences were not considered large enough to constitute a structural safety problem. The third phase compared effects of the disbondment with standard pull-out tests.
Structural Effects of Epoxy Coating Disbondment
The study was conducted at the Turner-Fairbank Highway Research Center from September 1992 to December 1992. The study consisted of three phases. Phase 1 documented induced disbondment of epoxy-coated reinforcing steel by means of an electrochemical process. The result was epoxy-coated rebar with between 20- to 30-percent disbondment. The degree of disbondment is significant. Phase 2 conducted experiments designed to test the effects of the degree of disbondment upon the flexural capacity of reinforced concrete slabs. Control slabs were fabricated with plain (uncoated bars) and untreated epoxy-coated bars. Identical test slabs were fabricated with the disbonded bars. These were tested to failure in positive and negative moment. The results showed some difference in the positive moment test and essentially no difference in the negative moment test. The differences were not considered large enough to constitute a structural safety problem. The third phase compared effects of the disbondment with standard pull-out tests.
Structural Effects of Epoxy Coating Disbondment
S. B. Chase (author)
1993
58 pages
Report
No indication
English
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