Process for preparing concrete from machine-made sand

The invention relates to the technical field of concrete preparation, in particular to a process for preparing concrete from machine-made sand, which comprises the following steps: adding prepared materials: firstly adding the machine-made sand, water and gravel into a stirring device; adding reinforcing materials, and sequentially adding glass fibers, hollow glass beads, high-alumina cement and calcium chloride powder in the stirring process; and concrete generation: uniformly mixing the machine-made sand, water, gravels, glass fibers, hollow glass beads, high-alumina cement and calcium chloride powder to obtain the concrete. The glass fibers, the hollow glass beads, the high-alumina cement and the calcium chloride are arranged, the glass fibers and the hollow glass beads can improve the toughness and compactness of the concrete, and the calcium chloride powder can improve the frost resistance of the concrete, so that the concrete can still keep stability in a cold environment, and the durability of a concre