AASHTO TP 92-14 (2018) PDF Download

The AASHTO TP 92-14 (2018) standard provides a procedure for determining the cracking temperature of asphalt binders. This is done using the Asphalt Binder Cracking Device (ABCD), which is capable of testing both unaged and aged asphalt binder samples.

The test method allows for the use of two aging procedures - T 240 (RTFOT) and R 28 (PAV). The ABCD is capable of testing cracking temperatures in the range of -60 to +20°C. This standard serves as a guideline for conducting the test and ensures consistency and accuracy in determining the cracking temperature of asphalt binders.

The cracking temperature of an asphalt binder is an important property as it indicates the temperature at which the binder may undergo cracking, leading to pavement distresses such as fatigue cracking. By determining the cracking temperature, engineers and researchers can assess the performance and durability of asphalt binders, and make informed decisions regarding their use in pavement construction and maintenance.