Paving asphalt pavement (generally using heavy-duty 90# 70# and modified asphalt) Asphalt has good adhesion, insulation, heat insulation, moisture-proof, seepage-proof, waterproof, anti-corrosion, and rust-proof properties, it has a wide range of uses besides paving. When building a shelter, asphalt is often used as a waterproof layer. When building a cold storage, asphalt and wood chips are often mixed to make an insulation layer; applying asphalt on railway sleepers can prevent corrosion; applying asphalt on underground pipelines can prevent rust; applying a layer of asphalt on reservoirs and dams can prevent seepage and leakage; injecting asphalt into the joints of bridge decks can play a role in thermal expansion and contraction. Asphalt can also be mixed with other materials to make asphalt paint, asphalt felt, asphalt rubber, asphalt coating, asphalt insulation glue and other products. With the development of modern science and technology, the use of petroleum asphalt has become more extensive. In terms of building materials, mixing asphalt with soil can make asphalt bricks and asphalt boards with high strength, low water absorption, beautiful and durable. This is a new type of building material. In agriculture, asphalt and fertilizer are mixed and sprayed on the soil surface to keep warm, reduce water evaporation, and prevent fertilizer loss. In the electrical industry, asphalt can be used as an insulating material and cable protective layer, especially underground cables and underwater cables. In addition, if asphalt is further processed, it can be used to produce petroleum coke, which is necessary for the steelmaking industry, and can also provide carbon fiber, which is necessary for the manufacture of spacecraft, etc.
