ASTM RR:C01-1011 PDF Download

ASTM RR:C01-1011 is a standard test method used to determine the compressive strength of hydraulic cement mortars. The test is conducted using 2-inch or 50 mm cube specimens. The purpose of this standard is to provide a standardized method that allows for accurate and consistent measurement of compressive strength.

The test involves preparing mortar specimens using a specified cement-to-sand ratio and water content. The mortar is then placed inside a mold, compacted, and cured in a moist environment. After the specified curing period, the specimens are tested for compressive strength using a compression machine.

The report for ASTM RR:C01-1011 focuses on two main objectives. Firstly, it aims to analyze the precision of Portland cement strength test results over a 40+ year period. This analysis helps in determining if there have been any significant changes in the precision of the test results over time.

Secondly, the report aims to develop revised statistical parameters for different test ages, such as 3-day, 7-day, 1-day, and 28-day test ages. The goal is to use more recent data to refine the statistical parameters and provide more accurate estimates of precision for the different test ages.