A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Laboratory Investigation of Concrete Beam-End Treatments. Tech Transfer Summary
The objectives of this research were to evaluate the performance of several concrete coating alternatives based on the American Association of State Highway and Transportation Officials (AASHTO) T259-80 chloride ion penetration test and to evaluate them based on their performance on in-service bridges. In addition, alternative beam-end forming details were developed and evaluated for their potential to mitigate the deterioration caused by corrosion of the prestressing strands on prestressed concrete beam ends.The ends of prestressed concrete beams located under bridge expansion joints are often exposed to extended periods of moisture and chlorides. This exposure can cause the beam ends to deteriorate prematurely, corrode the prestressing strands, degrade the surrounding concrete, and eventually reduce the capacity of the beam.
Laboratory Investigation of Concrete Beam-End Treatments. Tech Transfer Summary
The objectives of this research were to evaluate the performance of several concrete coating alternatives based on the American Association of State Highway and Transportation Officials (AASHTO) T259-80 chloride ion penetration test and to evaluate them based on their performance on in-service bridges. In addition, alternative beam-end forming details were developed and evaluated for their potential to mitigate the deterioration caused by corrosion of the prestressing strands on prestressed concrete beam ends.The ends of prestressed concrete beams located under bridge expansion joints are often exposed to extended periods of moisture and chlorides. This exposure can cause the beam ends to deteriorate prematurely, corrode the prestressing strands, degrade the surrounding concrete, and eventually reduce the capacity of the beam.
Laboratory Investigation of Concrete Beam-End Treatments. Tech Transfer Summary
Hosteng T. (author) / Abu-hawash A. (author) / Port G. (author) / Phares B. (author)
2015
3 pages
Report
No indication
English