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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Durability of Structural Lightweight Concrete
Author(s): T. A. Holm and t. W. Bremner
Publication: Special Publication
Appears on pages(s): 1119-1134
Keywords: concretes; density; durability; freeze-thaw durability; lightweight concretes; marine atmospheres; Materials Research
Abstract:Long-term durability of structural lightweight concrete used in bridges, ships, and buildings is reviewed. Particular attention is given to mature structures located throughout the world that have been subjected to severe weather conditions. Ongoing testing programs carried out on structures subjected to several decades of exposure are reported. The nature of both the vesicular lightweight aggregate itself as well as the interfacial contact zone between aggregate and cement paste matrix are analyzed, as the microstructure of lightweight concrete reveals factors that contribute to long-term durability. The information gained on the microlevel is used to explain observed performance, and provides a basis for predicting behavior. To facilitate the practical design of durable structures, long-term field exposure studies of normal weight and lightweight concretes are being conducted to assess their relative performance in a severe environment. The results obtained from ongoing testing programs conducted by the Canadian Concrete Technology Section of CANMET at the U.S. Corps of Engineers Treat Island Severe Weather Exposure Station are discussed in relation to the design process.
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