Why Not 3 x 6 Inch Cylinders for Testing Concrete Compressive Strength?


  • 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.

International Concrete Abstracts Portal


Title: Why Not 3 x 6 Inch Cylinders for Testing Concrete Compressive Strength?

Author(s): K.W. Nasser and J.C. Kenyon

Publication: Journal Proceedings

Volume: 81

Issue: 1

Appears on pages(s): 47-53

Keywords: agreggate size; coefficant of variation; compression tests; compressive strength; cylinders; specimens; standard deviation.

Date: 1/1/1984

This paper presents the results of an investigation to asses the suitablity of using a 3 x 6 in. (76 x 152 mm) to determine the potential compressive strength of concrete. Specimens used in such testing have trditionally been 6 x 12 in (152 x 305 mm) cylinders. For concrete mixes with a maximum aggregate size in the oder of 1.0 in. (25 mm), a smaller size specimen, such as the 3 x 6 in. (76 x 152 mm) cylinder may be satisfactory. Compression tests were performed on a total of 388 specimens, and results obtained from 3 x 6 in (76 x 152 mm) cylinders were compared with those obtained from standard 6 x 12 in (152 x 305 mm) specimens. Data obtained in previous research by Nasser and Beaton which involved testing of over 6600 cylindrica specimens was incorporated in this investigation. The conclusion was that 3 x 6 in. (76 x 152 mm) cylinders can be sucessfully used in concrete compression tests where the maximum size of the agreggate does not exceed 1.0 in. (25 mm).