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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Bridge-Beam Repair
Author(s): Vikas P. Wagh
Publication: Concrete International
Appears on pages(s): 43-50
Abstract:On a concrete arch bridge rehabilitation project in Pittsburgh, a precast post-tensioned floor beam cracked six to seven weeks after grouting of the post-tensioning duct. The cracking occurred due to freezing of water trapped in the post-tensioning duct as a result of improper grouting procedures. After detailed investigation and analysis, and auxiliary support beam was constructed to take the full load in case of failure of the damaged floor beam. The experience emphasizes the importance of proper procedures in grouting of a tendon duct in post-tensioned structures.
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