2020-09-09 06:57:54 1049
As we all know, the main components of the road surface are asphalt and uniform sand, and there are strict requirements for sand. After a summary of actual experience, it is found that the impact crusher is recognized as the ideal crushing equipment for the road asphalt surface. Lets understand in detail.
The sand and gravel required for the surface of highway asphalt should meet the requirements of two aspects. One is the resource characteristics, namely the mechanical strength of the gravel, the durability and chemical stability, the surface characteristics and whether there are undesirable impurities, etc. The coarse aggregate for the asphalt surface of the technical specification should meet the quality requirements of Table 1. The second is the processing characteristics, mainly including the consistency and cleanliness of the particle size and the particle shape of the graded particle, and the particle content of 0.075mm.
By comparing the jaw crusher hammer crusher, impact crusher and other different types of crushers, it is found that the impact crusher is mainly composed of a rotor plate hammer and a counterattack plate, and its working principle The stone is crushed by a high-speed rotating plate hammer, and flies out and hits the counterattack board to be further broken. It is suitable for finely crushed medium-hard stone, the aggregate size of the crushed material is uniform and close to cube, and the content of needle flakes is small. It has a high degree of consistency with the requirements of sand and gravel required on the asphalt surface.
The impact crusher has been used in highway construction. With its excellent performance and good performance, it has been used in highway construction water conservancy projects and construction gravel It is widely used in processing and other fields and has been recognized as an ideal crushing equipment for sand and gravel required on highway asphalt surfaces.