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Enhancing Concrete Durability by Treatment with Sealers

by Stella L. Marusin, Wiss, Janney, Elstner Associates Inc, United States,



Document Type: Proceeding Paper

Part of: Structural Materials

Abstract:

This paper summarizes some of the research which has been undertaken on sealers for hardened concrete during the last ten years at Wiss, Janney, Elstner Associates. Inc. The research used a test procedure developed during and after the NCHRP Project No. 12-19A, 'Concrete Sealers for Protection of Bridge Structures,' which was reprinted in 1981 as NCHRP Report No. 244. This test method utilizes 10 cm concrete cubes, and chloride ion penetration is determined from an entire half cube or at four depths within the cube after 21 days exposure to 15 percent NaCl solution. The study focuses on the minimization of the ingress of chloride-laden water into concrete.

Subject Headings: Concrete bridges | Reinforced concrete | Sealing | Chloride | Bridge tests | Concrete | Salt water intrusion

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