Asphalt is primarily made as a mixture of stone, gravel, sand, bitumen as a black viscose material that holds the entire surface together. Asphalt is a main material for roads, driveways and its needs to be very strong to resist the weight of heavy vehicles and weather conditions (sun, heat, cold, snow) and water damage. For instance the sun cooks and dries the asphalt so it can lose its elasticity, leaving the surface with cracks and chance to erode quickly. Once a hole is created the original colour of the asphalt begins to pale, after a while it will fade away and get grey appearance. The greying is a clear sign that asphalt becomes less resistant to cracking. (more…)