As road construction upgrades durability, 1-C/1-d SBS modified asphalt has become the preferred material for heavy traffic sections due to its excellent properties. Both of them belong to the class i classification of national standard sbs modified asphalt. Type 1-C is suitable for the main road in hotter area with penetration degree of 40-60 and softening point of ≥ 52℃, so as to balance toughness and constructability; 1-D type penetration 20-40, softening point ≥ 58℃, high temperature and anti-rutting, tailor-made for expressway and heavy truck lane in hot areas

Relying on sbs rubber modification technology, both products have the advantages of high toughness, anti-cracking, anti-aging and weatherability, and extend the service life of road by more than 30% compared with ordinary asphalt. At present, it has been widely used in multi-area high-speed expansion and municipal trunk road reconstruction projects to solve common road faults such as high-temperature rutting and low-temperature cracking from the source.