The editor of the asphalt mixing plant will introduce the types of asphalt modifiers:
With the development of the national economy, the traffic volume is getting larger and larger, the vehicle load is getting heavier, and the temperature is gradually warming up. Heavy traffic road asphalt can no longer meet the use requirements of high-grade highways and special sections. In order to improve the road surface's resistance to permanent deformation, rutting, bumping, displacement, fatigue, low-temperature cracking, aging, and water damage, the research and application departments of asphalt materials have proposed to modify road asphalt to improve the overall function of asphalt materials.

The so-called modified asphalt is to add appropriate and appropriate modifiers (one or more) to the base asphalt to improve or improve certain functions of asphalt and meet the process or method of road use requirements.
⒈Thermoplastic plastics: polyethylene PE, EVA, etc.;
⒉Thermosetting plastics: phenolic resin, epoxy resin, etc.;
⒊Rubber: natural rubber NR, SBR, CR, BR, IIR, etc.;
⒋Thermoplastic elastomers: SBS, SIS, SEBS, etc.;
⒌Natural asphalt: lake asphalt, rock asphalt, etc.
Thermoplastic elastomer SBS has good compatibility and storage stability with asphalt, and has good high temperature and low temperature functions; SBS is the most widely used asphalt modifier at home and abroad.
SBS is a thermoplastic elastomer, which is a linear or star-shaped block copolymer obtained by anionic polymerization with butadiene and styrene as monomers, cyclohexane as solvent, n-butyl lithium as initiator, tetrahydrofuran as activator. The SBS polymer chain has different blocks of series structure, namely plastic segment and rubber segment, forming an alloy-like structure. Due to this common structure, it has both the rigidity and plasticity of plastic and the flexibility and elasticity of rubber.