Abstract: With the expansion of urban area, all kinds of infrastructure should be constantly improved. With the expansion of infrastructure such as tap water, electricity, gas, heat, communication and sewage, it brings about interpenetration, excavation and destruction of the original road surface, and the use of ordinary materials to repair the road surface takes a long time, the open traffic time is long, and the controlled road sections have many hidden dangers. How to finish road repair safely and quickly is related to the efficiency of maintenance work and the improvement of road service capacity. In practice, the use of quick-setting concrete as road base, as anchorage material of bridge expansion joint, as quick repair material of cement concrete pavement, has achieved good working efficiency, and has popularization significance.