Due to the advantages of asphalt and cement pavement, semi flexible composite concrete is used in intersections, long longitudinal slopes and other sections. However, it takes a long time for the semi flexible grouting material to harden to the required strength, it is necessary to develop early strength semi flexible grouting material. 42.5 ordinary portland cement (hereinafter referred to as ordinary cement), fine sand, mineral powder, expansion agent and admixture are selected, and the proportion of semi flexible grouting material meeting the requirements is determined by orthogonal test. Then, quick hardening cement is used to replace ordinary cement. When the replacement ratio are 0.15~0.2, the performance of semi flexible grouting material after 4h can meet the requirements.