ASTM C1084-19 PDF Download

The ASTM C1084-19 standard is a test method consisting of two independent procedures. The first procedure is an oxide-analysis procedure, which further consists of two sub-procedures, and the second procedure is an extraction procedure. Both procedures require a high level of chemical skill and sophisticated chemical instrumentation.

The purpose of this test method is to determine the portland-cement content of a sample of hardened hydraulic-cement concrete. The test results typically yield cement contents that are equal to or slightly greater than the actual values, with the exception of the Maleic Acid procedure, which may yield significantly low results when the paste is carbonated.

Furthermore, this test method can also be used to estimate the combined content of portland cement and pozzolan or slag in concretes made with blended hydraulic cement and blends of portland cement with pozzolans or slags. However, the accuracy of the results depends on factors such as the composition of the pozzolan, the age of the concrete, and the extent of reaction of the pozzolan. It should be noted that this test method only determines the portland-cement component of a blended cement, and additional calibration samples or information are required for the determination of the blended cement content or the pozzolanic content.