Background The coefficient of thermal expansion (CTE) is one of the most important characteristics when testing materials in order to understand their behavior when it comes to temperature change. The CTE is the rate at which a material expands with an increase in temperature. It is determined at a constant pressure without a phase change within the...

Background Materials play an important role in the transportation infrastructure. Globally, about 90% of roads are made of asphalt mixtures. In the United States, 500 million tons of asphalt mixtures are produced annually at a cost of around $40 billion. Improving pavement materials properties, such as thermal conductivity and expansion-contraction,...

­Background In road infrastructure, one of the important properties of addressing the environmental and urban heat island aspects of pavements is the determination of the thermal conductivity. Asphalt concrete represents the third most widely used resource in the world, with asphalt-paved roads being its principal usage. One of the most important...

Background Paraffin wax has been used as a warm-mix additive for asphalt to improve the workability of bitumen and to extend the construction season. The addition of paraffin wax to asphalt reduces energy consumption and carbon footprint by reducing the mixing and compaction temperatures of asphalt. These lower temperatures during the mixing and compaction...