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| Title: | Effect of environmental conditions on bond strength between CFRP laminate and concrete substrate |
| Author (s): | Myers, John Ekenel, Mahmut |
| Department/Lab Affiliations: | Center for Infrastructure Engineering Studies Civil, Architectural & Environmental Engineering Electronic Materials Applied Research Center (EMARC) University Transportation Center |
| Keywords: | CFRP strengthening bond strength durability frost effect |
| Subject Terms: | Moisture. Temperature. |
| Issue Date: | 2005 |
| Publisher: | American Concrete Institute |
| Citation: | Myers, J.J., Ekenel, M., "Performance of FRP-Concrete Bond Subjected to Environmental Conditioning During Instillation Process," American Concrete Institute Special Publication-230-89, FRPRC7-Editors C. Shield, L. Busel, S. Walkup, D. Gremel, November 2005. |
| Abstract: | Limited information is known about the effects of environmental conditions during installation on quality and performance of the bond between carbon fiber reinforced polymer (CFRP)reinforcement and substrate material. This research study investigates the effect of surface moisture, relative humidity and temperature on the bond strength between concrete and CFRP reinforcement. Three test methods including a surface pull-off bond test, a surface shear-torsion bond test, and a flexural test were used to evaluate the bond performance of the FRP fabric under various installation conditions. Test results revealed that the high surface moisture content, extreme humidity and extreme low temperature can be detrimental to bond strength. Although the high temperature improved the bond strength, it is not recommended because of decreased set-time and saturant workability. Based on the results presented in this paper, a maximum allowable limit on surface moisture content, relative humidity, and temperature of 4.3%, 82%, and 90oF, respectively, at installation is recommended. |
| Type: | Article - Journal text |
| In Title: | American Concrete Institute Special Publication-230-89 |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder FULL COPYRIGHT INFORMATION: |
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| title | Effect of environmental conditions on bond strength between CFRP laminate and concrete substrate |
| contributor.author | Myers, John |
| contributor.author | Ekenel, Mahmut |
| contributor.deptlab | Center for Infrastructure Engineering Studies |
| contributor.deptlab | Civil, Architectural & Environmental Engineering |
| contributor.deptlab | Electronic Materials Applied Research Center (EMARC) |
| contributor.deptlab | University Transportation Center |
| subject | CFRP strengthening |
| subject | bond strength |
| subject | durability |
| subject | frost effect |
| subject.LCSH | Moisture. |
| subject.LCSH | Temperature. |
| date.issued | 2005 |
| publisher | American Concrete Institute |
| identifier.citation | Myers, J.J., Ekenel, M., "Performance of FRP-Concrete Bond Subjected to Environmental Conditioning During Instillation Process," American Concrete Institute Special Publication-230-89, FRPRC7-Editors C. Shield, L. Busel, S. Walkup, D. Gremel, November 2005. |
| identifier.pub.URI | |
| description.abstract | Limited information is known about the effects of environmental conditions during installation on quality and performance of the bond between carbon fiber reinforced polymer (CFRP)reinforcement and substrate material. This research study investigates the effect of surface moisture, relative humidity and temperature on the bond strength between concrete and CFRP reinforcement. Three test methods including a surface pull-off bond test, a surface shear-torsion bond test, and a flexural test were used to evaluate the bond performance of the FRP fabric under various installation conditions. Test results revealed that the high surface moisture content, extreme humidity and extreme low temperature can be detrimental to bond strength. Although the high temperature improved the bond strength, it is not recommended because of decreased set-time and saturant workability. Based on the results presented in this paper, a maximum allowable limit on surface moisture content, relative humidity, and temperature of 4.3%, 82%, and 90oF, respectively, at installation is recommended. |
| type | Article - Journal |
| type.DCMIType | text |
| type.status | Final version |
| relation.isPartOf | American Concrete Institute Special Publication-230-89 |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder |
| rights.URI | |
| date.accessioned | 2007-04-11T17:00:48Z |
| date.available | 2008-05-21T16:13:32Z |
| identifier.persist.URI |