Mechanical Integrity and Sustainability of Pre-stressed Concrete Bridge Girders Repaired by Epoxy Injection – Phase I

Project Details
STATE

GA

START DATE

06/15/16

END DATE

05/15/17

RESEARCHERS

David Jared

SPONSORS

GA DOT

KEYWORDS

Cracking; Epoxy resins; Girders; Life cycle analysis; Mechanical properties; Prestressed concrete bridges; Simulation; Sustainable development

Project description

The project objectives are to: (1) Explain in which conditions the strength of cracked concrete can be recovered by epoxy injection; (2) Design the injection method for optimal mechanical performance; (3) Interpret mechanical tests performed on cracked and repaired pre-stressed concrete beams; (4) Assess the mechanical integrity of pre-stressed bridge girders for a variety of crack and injection patterns; (5) Predict the mechanical behavior of repaired concrete in the long-term, under typical loading and weathering conditions; (6) Simulate the life cycle of a typical pre-stressed girder; (7) Assess the sustainability of pre-stressed concrete bridge girders repaired by epoxy injection.
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