ASTM RR:C09-1006 PDF Download

The ASTM RR:C09-1006 standard, also known as the Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, describes a procedure for determining the compressive strength of cylindrical concrete specimens. In order to establish precision statements for this standard, an interlaboratory study, referred to as C39/C39M-05, was conducted.

During the study, participating laboratories tested individual cylindrical specimens measuring 6 by 12 inches. These specimens were made from a well-mixed sample of concrete. The purpose of conducting this study was to determine the precision or consistency of test results obtained by different laboratories using this standard.

By evaluating the results obtained from multiple laboratories, a measure of precision was established for the standard, allowing for better understanding and interpretation of compressive strength values obtained from concrete specimens. This precision statement is important for ensuring the reliability and accuracy of test results across different testing facilities, enabling better quality control in construction and engineering projects involving concrete structures.