Machine-made sand concrete with high strength and high rheological property and preparation method thereof

The invention discloses machine-made sand concrete with high strength and high rheological property and a preparation method thereof, and belongs to the technical field of concrete manufacturing. The machine-made sand concrete is prepared from the following components in parts by weight: 17.47 to 18 parts of cement, 14 to 15 parts of shaping machine-made sand, 14 to 15 parts of river sand, 0.11 to 1 part of water reducing agent, 8 to 9 parts of water and 44 to 45 parts of stone. According to the method, the hill sand mother rock is shaped to obtain the shaped machine-made sand with different particle sizes, the mass ratio of the shaped machine-made sand with different particle sizes to the river sand is obtained through a large number of experiments, and the river sand is replaced with the shaped machine-made sand to the maximum extent on the premise that the strength and fluidity of the concrete are guaranteed. By selecting the particle size distribution of the shaping machine-made sand, local materials can