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Durability Failure of a Concrete Block Port Pavement

by Marian P. Rollings, Rollings Engineering, Vicksburg, United States,
Raymond S. Rollings, Rollings Engineering, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures

Abstract:

A concrete block port pavement began showing distress after 7.5 years of use. Initial repair attempts found extensive areas of deterioration. The concrete blocks were cracking, spalling, and disintegrating. The investigation described in this paper found that sulfate attack of the concrete was occurring due to exposure to sulfates in leachate from coal stockpiles. Although some steps to provide sulfate resistance had originally been taken, they were inadequate for the severe conditions at this site.

Subject Headings: Concrete blocks | Sulfates | Concrete pavements | Ports and harbors | Pavement condition | Non-renewable energy | Failure analysis

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