| Surface coating is one of the major approaches to repair deteriorated concrete.There are various coating materials and application methods for concrete surface repairand strengthening, but selection criterion for these materials has not been established yet.In order to establish optimum coating selection procedures, reliable durability estimation isdefinitely indispensable for LCC analyses. It is important that how we can extend servicelife for each coating system depend on the damage level and corrosion environment,although test method for durability evaluation itself might not be finalized.To reveal the durability and applicable conditions of surface coating systems,maritime exposure tests using controlled concrete specimens have been conducted.Furthermore, a lot of deteriorated bridges were repaired already, and these bridges suggestmany informative in-situ results to verify the durability of coating systems. This paperstates the summery of the durability investigations of concrete surface coating materials. |
