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

Project Details
STATE

GA

SOURCE

TRID

START DATE

06/15/16

END DATE

05/15/17

RESEARCHERS

Chloe Arson, Koochul Ji

SPONSORS

GA DOT

KEYWORDS

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

LINKS

Project webpage

Products

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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