Title: Acceptance Testing Using 4 x 8 in. Cylinders

Author(s): Rachel J. Detwiler, Terry E. Swor, and Wendy Thomas

Publication: Concrete International

Volume: 28

Issue: 1

Appears on pages(s): 81-88

Keywords: compression tests; compressive strength; cylinders; evaluation; precision; standard deviation; statistical analysis.

DOI:

Date: 1/1/2006

Abstract:
The use of 4 x 8-in. compressive strength specimens in place of 6 x 12-in. specimens offers many advantages to testing laboratories. However, because ASTM C39 currently lacks a precision statement for 4 x 8-in. specimens, engineers may be reluctant to permit their use. A testing program involving multiple testing laboratories and a proposed precision statement for 4 x 8-in. cylinders are presented in this article.