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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 Lightweight Concrete and its Connections With the Composition of Concrete, Design, and Construction Methods
Author(s): Alexander M. Vayasburd
Publication: Special Publication
Appears on pages(s): 295-318
Keywords: absorption; carbonation; concretes; construction; corrosion; curing; durability; freeze-thaw durability; lightweight aggregate concretes; lightweight concretes; permeability; General
Abstract:During the past three decades, lightweight aggregate concrete has emerged as an important sector of the structural concrete industry. It possesses unique properties, similar in some ways to those of normal weight concrete, but differing in significant aspects. Difficulties experienced with lightweight concrete in some projects appears to be caused by a lack of understanding of the differences between normal weight concrete and lightweight concrete as materials and differences in production technologies. It is most wisely used when treated as a material in its own right, with its special properties fully considered in design and construction. A three-phase model of lightweight concrete and its effect on durability are discussed as they relate to selection of materials, concreting and curing technology, control of in-service distress due to freezing and thawing, and corrosion of reinforcing steel. ased on the observed performance of bridge and marine structures built over the past four decades, the author presents a series of generalized observations applying to durability of lightweight concrete that provide a fair cross section of the entire experience. Paper concludes that, with proper selection of materials and design, and good construction practices, lightweight concrete offers an excellent solution to the problem of durability in severe environment.
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