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NEx Webinar Series: Can Ground Penetrating Radar (GPR) Help Detect Glass Fiber Reinforced Polymer (GFPR) Bars?

July 30, 2024 to July 30, 2024
Starting Time:   1:00 EDT 
End Time:   2:00 EDT 

online
    Any...
Sponsor(s): ACI and NEx

Description:
This webinar is jointly sponsored by NEx: An ACI Center of Excellence for Nonmetallic Building Materials and the American Concrete Institute (ACI).

The effectiveness of GPR in detecting non-metallic reinforcement has been of special interest to researchers and engineers around the world. The ability to detect embedded non-metallic bars such as GFRP is important from several angles. In post-construction work, GPR scanning is often required to detect reinforcement in critical zones of beams, slabs, and walls. This is to prevent damaging the structural integrity of the built environment. Scanning is also crucial in the assessment of existing buildings. When adequate as-built drawings are not available, or when repair needs to be done on sections of an existing bridge deck, the ability to detect non-metallic bars using GPR plays an important role. Several factors affect the ability of GPR in accurately detecting non-metallic bars such as GFRP bars. The shape of the rebar (with ribs, or without ribs), the size and embedment depth of bars are important considerations. The GPR antenna and its central frequency can influence the accuracy of the scan. In this presentation, we will perform a comparative study on two commercially available GPR devices for scanning a concrete slab that is reinforced using ribbed GFRP bars.
For additional on-line info, click on the link below:
https://www.concrete.org/education/aciuniversity/webinars.aspx

For more information, contact:
Aileen Castelli
American Concrete Institute
38800 Country Club Dr
Farmington Hills, MI    48331-3439    United States
Phone: (248) 848-3157
Fax: (248) 848-3701

        
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