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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: High-Strength Lightweight Concrete for Application in Highway Girders
Author(s): K.F. Meyer, B.S. Buchberg, and L.F. Kahn
Publication: Special Publication
Appears on pages(s): 681-702
Keywords: high-strength lightweight concrete; HPC; lightweight concrete; material properties; mixture proportion; prestressed concrete; slate lightweight aggregate
Abstract:This paper describes the development and material testing results of high strength lightweight concrete (HSLC) mixture proportions for use in precast, prestressed concrete highway girders. As part of a research project at Georgia Tech, it was necessary to develop concrete mixture proportions using slate lightweight aggregate able to achieve design strengths of 8,000 and 10,000 psi (55.2 and 69.0 MPa) with an equilibrium unit weight of approximately 120 pcf (1922 kg/m3) or less. A methodical approach to proportioning mixture components was developed and used to configure HSLC mixtures. Field testing was conducted to verify the mixture proportions for use in a production environment. An extensive material testing program based on specimens cast during all phases of the research project produced a database of material properties to include strength, modulus of elasticity, rupture modulus, coefficient of thermal expansion, and chloride permeability.
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