1、 The composition of the two is different.
Asphalt is a dark brown complex mixture composed of hydrocarbons with different molecular weights and their non-metallic derivatives. It is a kind of high viscosity organic liquid. It is liquid, black on the surface and soluble in carbon disulfide.
Modified asphalt is an asphalt binder made by adding rubber, resin, high molecular polymer, ground rubber powder or other fillers (modifier), or taking measures such as mild oxidation processing of asphalt to improve the performance of asphalt or asphalt mixture.
2、 Their performance and scope of application are different.
Compared with asphalt, modified asphalt is based on high-quality road asphalt, adds a certain amount of elastomer SBS polymer, and produces petroleum asphalt with excellent high and low temperature performance through specific production process. It not only retains the properties of asphalt, but also integrates the properties of elastomer, and greatly widens the service temperature of the product. It is a highway The most ideal pavement material for airport runway.
3、 The cost of the two is different.
Because modified asphalt is produced through specific process on the basis of asphalt, the cost is much higher than that of asphalt.
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January 13th, 2022 
