Road surface shot blasting machine is widely used in pre-treatment before ground construction. It is especially suitable for preservative pretreatment of steel surface of concrete floor, steel deck, steel bridge deck, steel surface, ship steel surface, and large steel structure flat oil tank bottom surface; Bridges, urban viaducts, special roads (airport runways, etc.), concrete prefabricated road (bridge) pavement treatment, epoxy floor pre-treatment and other fields. The whole process has no dust pollution, it can effectively remove the ground laitance, stains, etc.; At the same time, for the hardened floor and Shuimo ground hair, the treated surface is even and smooth, clean, can effectively improve the paint adhesion The entire operation process is free of any pollution and emissions. The treated surface has no residue and no further treatment is required.