ASTM C1890-19 PDF Download

ASTM C1890-19 is a standard test method that allows for the rapid assessment of the consistency of freshly mixed concrete. It is particularly useful for evaluating the consistency of flowing or self-consolidating concrete mixtures, as well as detecting batch-to-batch variations in consistency.

It is important to note that there is no direct correlation between the K-slump value obtained from this test method and the slump measured in accordance with Test Method C143/C143M or the slump flow measured in accordance with Test Method C1611/C1611M. However, the K-slump test can be utilized as a quality control tool. For instance, by conducting trial batches in the laboratory and determining the acceptable range of K-slump values corresponding to the desired slump or slump flow range, the consistency of field batches can be effectively monitored.

It is essential to understand that this test method should not be used as the sole basis for accepting or rejecting concrete. Rather, it serves as a tool for assessing consistency and controlling quality. The standard provides details on the procedure for determining the K-slump of freshly mixed concrete in both laboratory and field settings. The measurement values are expressed in SI units as the standard, and no other units of measurement are included in this standard. Additionally, explanatory notes and footnotes are provided, but they are not considered as requirements of the standard.