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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: Recent Research Projects to Investigate Mechanical Properties of High-Performance Lightweight Concrete
Author(s): K.S. Harmon
Publication: Special Publication
Appears on pages(s): 991-1008
Keywords: aggregate; air content; compressive strength; concrete; creep; density; lightweight aggregate; lightweight concrete; mixture proportion; modulus of elasticity; modulus of rupture; Poisson’s ratio; shrinkage
Abstract:In recent years, a number of research projects have been conducted to investigate physical characteristics of rotary kiln expanded lightweight aggregates and engineering properties of high performance lightweight concrete. These research projects include academic research, laboratory research performed for and by the lightweight aggregate industry, and research projects conducted by the construction industry. Some of these research projects have already influenced design criteria and construction procedures on significant projects around the world. In the past, designers have had very little information on the behavior of lightweight aggregate concrete in applications requiring compressive strengths of over 6,000 psi (40MPa). Recent research projects provide reliable information on mechanical properties of high strength lightweight concrete such as modulus of elasticity, creep, shrinkage, coefficient of thermal expansion and chloride permeability. This paper will compile and present results of some of these research projects. It will discuss certain projects that have already been influenced. It will also discuss implications for design and construction of future projects, especially precast prestressed bridge girders, concrete frame buildings with post-tensioned floor slabs, post-tensioned bridge decks, segmental concrete bridges and other high performance concrete structures in severe environments such as off-shore oil and liquefied natural gas platforms.
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