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Title: Performance of Structural Lightweight Concrete in a Marine Environment

Author(s): T. A. Holm

Publication: Symposium Paper

Volume: 65


Appears on pages(s): 589-608

Keywords: bridge decks; compressive strength; concrete construction; cores; field tests; freeze-thaw durability; lightweight aggregate concretes; marine atmospheres; modulus of elasticity; performance; physical properties; ships; weathering.

DOI: 10.14359/6374

Date: 8/1/1980

The performance of structural lightweight concrete in a marine environment is reviewed beginning with the construction of concrete ships in World War I. Major laboratory programs, utilizing different methods of evaluating the durability characteristics of structural lightweight concretes are described. Physical properties that influence the weathering characteristics of structural lightweight concrete, that differ significantly from corresponding properties of normal weight concretes are reported. Long term field exposure of lightweight concrete structures, including a 60 year old ship and a 25 year old bridge deck are reported. Criteria for the construction of durable lightweight concrete structures exposed to marine conditions are recommended.