ASTM C260/C260M-10a (R2016) PDF Download

The ASTM C260/C260M-10a (R2016) standard specification is focused on air-entraining admixtures for use in concrete mixtures. The standard outlines the requirements and characteristics that these admixtures must meet in order to ensure their effectiveness in the field.

The standard covers a range of requirements for the admixtures, including initial and final time of setting, compressive strength, flexural strength, and length change (maximum shrinkage). These requirements help to ensure that the admixtures will provide the desired air-entraining properties without compromising the overall performance of the concrete.

In terms of sampling, the standard allows for either grab samples (obtained in a single operation) or composite samples (obtained by combining three or more grab samples) to be used for testing. This ensures that the samples accurately represent the quality and uniformity of the admixture.

It is important to note that the standard includes explanatory material in the form of notes and footnotes. However, these notes and footnotes (excluding those in tables and figures) are not considered as requirements of the standard but rather provide additional clarity and information.