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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: Quality Statndards and Tests for Precast Concrete Wall Panels
Author(s): ACI Committee 533
Publication: Journal Proceedings
Appears on pages(s): 270-275
Keywords: absorption; air entrainment; compressive strength; concrete cores; con-crete
durability; concrete panels; cubes; discoloration; freeze-thaw durability; impact
hammer tests; precast concrete; quality control; specifications; testing; walls.
Abstract:This report emphasizes specification and production control tests and procedures which will simplify and improve the relationship of architects, engineers, prefabricators, and owners, with regard to precast concrete wall panels. Tests for compressive strength and for freeze-thaw durability are discussed. Standard 6 x I2-in. ( 15 x 30 cm) cylinders are recommended for compressive strength samples wherever such procedure is practical. Otherwise, 4-in. (10 cm) cubes are suggested, the test results of which should be reduced 20 percent as an estimate of cylinder strength. Due to past excellent panels, specification of performance and the normal vertical orientation of most wall freeze-thaw testing is not recommended generally. The report recommends that wall panel concretes should be air-entrained without specification of a fixed percentage air content.
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