AASHTO T 179-05 (2018) PDF Download

AASHTO T 179-05 (2018) is a standard method of testing the effect of heat and air on asphalt materials, specifically a thin film of semisolid asphaltic material. The purpose of this test is to determine how the material is affected by exposure to heat and air by measuring its properties before and after the test. This standard is similar to ASTM 1754-97 (2002).

The test involves subjecting a film of asphalt material to controlled conditions of temperature and air flow in a thin-film oven. The material is heated to a specified temperature and maintained for a specific time period. After the heating process, the material is tested for changes in specific properties, such as penetration and ductility, which are indicators of its performance characteristics.

This standard provides a reliable and standardized method for evaluating the potential effects of heat and air on asphalt materials. It helps asphalt producers and technicians assess the suitability and durability of materials for various applications such as road and pavement construction. By determining the changes in properties after the thin-film oven test, it allows for comparisons between different asphalt materials and helps to ensure quality control and performance standards in the industry.