Low-temperature thermal cracking is one of the most prominent failures of flexible pavement. To quantify the stresses caused by abrupt temperature changes, thermal contraction and thermal expansion coefficients must be known. This attribute is difficult to assess in materials with complex behaviour, such as asphalt concrete, and no systematic methods are currently available for determining it in laboratory experiments. The thesis’ fundamental goal is to provide a research procedure for calculating the coefficient of thermal contraction and expansion of asphalt concrete. More precisely, the operation must be as effective as possible, with as little operator interference. The instrument used for this purpose was a dynamic shear rheometer (DSR), which is generally used for the rheological characterization of materials like bitumen.