A bitumen emulsion for road paving applications, is a dispersion of typically 60-69wt.% of small droplets of bitumen inside water (see Figure 1 below). The bitumen droplets typically measure a few microns. Reason to make them is because the viscosity of the emulsion is not so much higher than that of water. As a consequence, a bitumen emulsion can be handled easily at room temperature when the neat bitumen would need to be heated at temperatures above 100ºC to achieve the same viscosity. Therefore, emulsions represent an astute way to make bitumen easier to manipulate at room temperature. In addition, they allow for significant energy and emissions savings thanks to a lower need for heating, given that the bitumen is only heated for manufacturing the emulsion that can then be stored and transported at room temperature. This is why they represent an Environmentally Friendly Construction Technology.