CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Beam End Repair for Prestressed Concrete Beams


Principal investigator:

Co-principal investigators:

Project status

In progress

Start date: 01/01/17
End date: 08/31/18



About the research


Precast prestressed concrete beams (PPCBs) have been a popular and economical choice for bridge superstructures for many years. Unfortunately, where the ends of the beams are subject to contamination from deicing chemicals, there has been accelerated deterioration of the concrete. As this deterioration continues, it eventually compromises the structural capacity of the beam.

This research investigates rehabilitation methods for restoring the full capacity of the beam, extending the service life of the bridge. The outcome would include potential retrofit concepts for typical beam seats at abutments and pier caps.