ASTM D8044-23 pdf download – Standard Test Method For Evaluation Of Asphalt Mixture Cracking Resistance Using The Semi-Circular Bend Test (SCB) At Intermediate Temperatures.
1.1 The present method outlines the steps for the preparation, testing, and assessment of asphalt mixture’s cracking resistance at moderate temperatures, utilizing the semi-circular bend (SCB) configuration on laboratory-made or pavement core asphalt mixture samples tested in a monotonic manner. The SCB sample takes the form of a half-disk featuring a vertical notch aligned with the testing load. The method details the calculation of the critical strain energy release rate, Jc, and other parameters derived from the load-displacement curve. These parameters are employed for evaluating the cracking resistance of asphalt mixtures.
1.2 This standard includes annotations and footnotes that offer explanatory content. It is important to note that such notes and footnotes (excluding those within tables and figures) do not constitute mandatory requirements of the standard.
1.3 The values provided in the International System of Units (SI) are considered the normative. This standard does not incorporate any other units of measurement.
1.4 Due to the lack of a fully developed Precision and Bias statement for this standard, the test method is intended solely for research and informational purposes. Consequently, the standard should not be employed for accepting or rejecting materials in the context of purchasing decisions.
