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Inspection of the polyurea on the San Mateo Bridge

Inspection of the polyurea on the San Mateo Bridge
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The San Mateo Bridge represents the largest application of thick film coatings for protection of a concrete highway bridge in the US to date. This challenging project was undertaken in order to provide a aggressive extension to the expected service life of the new concrete components of the widened bridge. This report provides a brief summary of the coating application process during construction followed by a report of a recent visual inspection performed at the five-year point in service. 

Product Number: 41208-408-SG
Author: Lisa Dobeck
Publication Date: 2008
Industry: Coatings
$0.00
$20.00
$20.00

The San Mateo Bridge represents the largest application of thick film coatings for protection of a concrete highway bridge in the US to date. This challenging project was undertaken in order to provide a aggressive extension to the expected service life of the new concrete components of the widened bridge. This report provides a brief summary of the coating application process during construction followed by a report of a recent visual inspection performed at the five-year point in service. Much of the following details the key problems and issues associated with performing a coating project of this scale under the demanding conditions and pressure of a construction schedule. Overall, the project is considered to be a success by Caltrans at this point as the number and extent of failures are considered manageable and explainable based on specific issues discovered during initial application.

The San Mateo Bridge represents the largest application of thick film coatings for protection of a concrete highway bridge in the US to date. This challenging project was undertaken in order to provide a aggressive extension to the expected service life of the new concrete components of the widened bridge. This report provides a brief summary of the coating application process during construction followed by a report of a recent visual inspection performed at the five-year point in service. Much of the following details the key problems and issues associated with performing a coating project of this scale under the demanding conditions and pressure of a construction schedule. Overall, the project is considered to be a success by Caltrans at this point as the number and extent of failures are considered manageable and explainable based on specific issues discovered during initial application.

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