Method for preparing recycled concrete from waste concrete blocks

The invention belongs to the technical field of waste concrete utilization, and particularly relates to a method for preparing recycled concrete from waste concrete blocks, which comprises the following specific steps: S1, grinding the waste concrete: crushing the waste concrete into small blocks through a crusher or an artificial heavy hammer, the small blocks of waste concrete are placed in extrusion type crushing equipment to be extruded and crushed; s2, cleaning the waste concrete particles; and S3, mixing the raw materials. The waste concrete is subjected to repeated particle size reduction treatment such as crushing and grinding, so that the waste concrete is treated into extremely small particles, the defects such as internal vacancy and stress do not exist, and the overall structural strength of the prepared recycled concrete is relatively good; by using the glass fibers and the stones, the overall structural strength of the recycled concrete is further improved, and dust and other impurities on the c