Evaluation of asphalt composition laboratory determination methods

Abstract

The majority of Lithuanian road material testing laboratories uses the chlorinated solvents for the determination of the hot mixed asphalt (HMA) mixtures in order to separate the binder from the aggregates. The separation-with-solvents method carries out the main function, separates the mineral aggregates and the binder. However, the methods using the solvents are expensive, require big experience and are not safe. With the constantly growing requirements for health and environmental protection it is aimed to reduce the use of chlorinated solvents in laboratory investigations. For this purpose the new methods are being created to determine the HMA content. One of the new methods is the ignition method.