ASTM D4792/D4792M-13 (R2019) PDF Download

The ASTM D4792/D4792M-13 (R2019) standard is titled "Standard Test Method for Potential Expansion of Aggregates from Hydration Reactions." This test method outlines procedures for determining the compliance of steel slags and other materials with specifications that restrict the expansion of aggregates due to hydration reactions. It can also be used to evaluate the effectiveness of aging or other treatments in reducing the potential expansion of such materials.

The standard emphasizes that the test results obtained using this method have not been correlated with field performance, and the values obtained do not necessarily indicate the expansion that may occur under actual service conditions. The quality and reliability of the results depend on the competence of the personnel performing the test and the calibration and maintenance of the equipment used.

The standard also specifies that compliance with Specification D3666 is not sufficient to ensure reliable results, as reliable results depend on various factors. However, following the suggestions of Specification D3666 or a similar guideline can help evaluate and control some of these factors.

In terms of the test method itself, it covers the determination of potential volume expansion of dense graded compacted aggregates containing components that are susceptible to hydration and subsequent volume increase, such as calcium and magnesium oxides found in certain industrial by-products. The standard also provides information on sieve sizes and clarifies that the notes and footnotes in the text (excluding those in tables and figures) should not be considered as requirements of the standard.