ASTM RR:C09-1028 PDF Download

ASTM RR:C09-1028 is a standard test method that determines the temperature of freshly mixed hydraulic-cement concrete. In order to establish the precision statements for test method C1064/C1064M, an interlaboratory study was conducted by eleven operators. The study involved testing two concrete batches at approximately 75°C.

The purpose of this test method is to ensure accurate and consistent measurement of the temperature of freshly mixed concrete, as temperature can greatly affect the properties and performance of the concrete. The test method provides guidelines on how to properly measure the temperature using suitable devices, such as thermometers or temperature-sensing devices.

By conducting an interlaboratory study with multiple operators, the standard aims to determine the precision of the test method. This helps to ensure that the results obtained from different laboratories are comparable and reliable. The study involves testing concrete samples at a specific temperature to assess the consistency and accuracy of the test method.