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New Approaches to Strengthen Deteriorated Concrete Bridges

Posted: Jun 16, 2020

MPC research at the University of Colorado Denver will improve the understanding of embedded carbon fiber reinforced polymer (CFRP) systems for concrete bridge members, and will enhance the durability of strengthened concrete members and provide new techniques for bridge engineers who want to adopt state-of-the-art repair techniques to strengthen bridges and extend their lifespans.

The researchers explored the feasibility of a novel anchor system that mitigates the end-peeling of CFRP sheets used for strengthening reinforced concrete beams. Contrary to conventional anchoring methods, CFRP sheets are embedded inside the pre-grooved concrete and covered by a durable polyester-silica composite. Fourteen strengthened beams were loaded in flexure to assess the performance of the proposed anchor system.

Yail Jimmy Kim, Ph.D.
University of Colorado Denver

Innovative Strengthening for Deteriorated Concrete Bridges Using Embedded Composite Sheets Bonded with Polyester-Silica

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050