ASTM D6929-21 PDF Download

The ASTM D6929-21 standard addresses the evaluation of emulsified asphalt to determine its ability to remain homogeneous (unbroken) when subjected to freezing temperatures, specifically at -18°C.

The standard acknowledges that the quality of the results obtained from this practice depends on the competence of the personnel conducting the procedure, as well as the calibration and maintenance of the equipment used. It emphasizes that compliance with Specification D3666, which outlines the criteria for competent and objective testing, is important but not sufficient to ensure reliable results. The standard suggests that following the guidelines of Specification D3666 or a similar acceptable guideline can help evaluate and control various factors affecting the reliability of results.

Emulsified asphalt is known to be vulnerable to damage caused by freezing temperatures. However, there may be specially formulated materials designed to pass this practice.

It should be noted that the standard includes references to explanatory notes and footnotes, which provide additional information but are not considered requirements of the standard, except for those found within tables and figures.