Environment-friendly cement-based road marking coating as well as preparation method and construction method thereof

The invention discloses an environment-friendly cement-based road marking coating as well as a preparation method and a construction method thereof, and relates to the technical field of road marking coatings, and the cement-based road marking coating is mainly prepared from the following raw materials in parts by weight: 20-40 parts of sulphoaluminate cement; 20 to 30 parts of Portland cement; 0.5-1 part of a water reducing agent; 1 to 5 parts of basalt fiber; 5-10 parts of a pigment; 1-5 parts of an early strength agent; 0.5 to 1 part of a defoaming agent; 5-10 parts of silica fume; 8-15 parts of a reflective material; and 10-20 parts of slag. The cement-based road marking coating provided by the invention aims to solve the problems of high early strength, short drying time and good wear resistance and durability after the existing water-based road marking coating is solidified, the preparation method is simple and easy to implement, convenient to operate and control, low in energy consumption and low in co