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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: Precision of Compressive Strength Testing of Concrete with Different Cylinder Specimen Sizes
Author(s): Hosein Taghaddos, Hamid R. Soleymani, and J. D. (Dave) Robson
Publication: Materials Journal
Appears on pages(s): 461-468
Keywords: compressive strength; cylinders; index; size; specimen; repeatability; reproducibility
Abstract:Most standardization agencies allow small-cylinder specimens (100 x 200 mm [4 x 8 in.]) to be used in compressive strength concrete testing. Some engineers are still skeptical about using small cylinders, however, as they believe that compressive strength testing results from small cylinders are too varied. Limited studies have been conducted regarding the precision of small cylinders compared to precision studies for conventional cylinders (150 x 300 mm [6 x 12 in.]). This paper describes the results of a comparative concrete testing program conducted by 15 laboratories in Edmonton, AB, Canada, over the past 10 years. This study attempted to develop within-laboratory (repeatability) and between-laboratory (reproducibility) precision indexes for small and conventional concrete specimens by analyzing more than 2700 compressive strength concrete testing data within a compressive strength range of 17 to 57 MPa (2500 to 8300 psi).
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