Webstore

RS ASTM C39/C39M-26
Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

Abstract

1.1 This test method covers determination of compressive
strength of cylindrical concrete specimens such as molded
cylinders and drilled cores. It is limited to concrete having a
density in excess of 800 kg/m3 [50 lb/ft3].
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The inch-pound units
are shown in brackets. The values stated in each system may
not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two
systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to
use.(Warning—Means should be provided to contain concrete
fragments during sudden rupture of specimens. Tendency for
sudden rupture increases with increasing concrete strength and
it is more likely when the testing machine is relatively flexible.
The safety precautions given in R0030 are recommended.)
1.4 The text of this standard references notes which provide
explanatory material. These notes shall not be considered as
requirements of the standard.

General Information

Code	Classification	Theme	Pages	Publisher	Availability
RS ASTM C39/C39M-26	ADOPTED ASTM STANDARDS	Civil engineering	9	2026 Version Jul 2026	Available