ECO-FRIENDLY SURFACE TREATMENT METHOD

摘要

PURPOSE: A surface-treatment method is provided to remaining of sand sprayed from a sanding gun on a concrete structure or the surface of a metal object by using dimethyl dichlorosilane as a sanding solution. CONSTITUTION: A surface-treatment method comprises: a step of polishing the surface of a concrete structure or metal object; a step of storing dimethyl dichlorosilane and abrasive material in a solution storage container and an abrasive storage container; and a step of ejecting the dimethyl dichlorosilane and the abrasive material thereof through an ejection nozzle of a sanding gun to the surface. The dimethyl dichlorosilane is vaporized right before or after the collision of the surface. The dimethyl dichlorosilane is heated to 40-60°C and stored in the solution storage container. [Reference numerals] (AA) Start; (BB) End; (S11) Polishing the surface of a frame; (S12) Storing a sanding material; (S13) Sanding the surface of the frame