Asphalt
Asphalt is an adhesion of hydrocarbon material, its lightness is blackish brown, water-soluble and viscoelastic. Asphalt is often referred to as bitumen, which is a bitumen material in an asphalt mixture that serves as a layer of flexible layer. Asphalt originated from asphalt (asphalt) or asphalt oil (asphalt from earth oil), based on its consistency, asphalt can be grouped into solid asphalt and bitumen asphalt Asphalt or bitumen is a thick fraction of hydrocarbon compounds with a little bit of bearing sulfur, oxygen, and chlorine Asphalt is a viscositious elastic material in the binder. The solid acrylic is solid at a temperature of cauldron and liquid when it is pumped.