AASHTO T 329-15 (2019) PDF Download

AASHTO T 329-15 (2019) is a standard method that provides guidelines for determining the moisture content of hot-mix asphalt (HMA) using the oven method. The purpose of this method is to measure the amount of moisture present in the HMA mixture, which is crucial for proper pavement design and performance.

The method involves obtaining a representative HMA sample and subjecting it to a drying process in an oven at a specific temperature. The sample is first weighed, and then it is placed in the oven for a specified period of time. The oven is set at a controlled temperature to ensure that the moisture is evaporated without affecting the integrity of the asphalt mixture.

After the specified drying time, the sample is removed from the oven and allowed to cool. It is then re-weighed to determine the moisture content. The difference in weight before and after drying is used to calculate the percentage of moisture content in the HMA sample.