Device for testing silt content of natural sand fine aggregate for cement concrete

The utility model discloses a natural sand fine aggregate silt content testing device for cement concrete, which comprises a bottom filter screening structure, a bottom filter screening structure, a bottom filter screening structure and a bottom filter screening structure, the bottom filter screening structure comprises a bottom filter frame of a rectangular body frame, and a first filter screening bottom net with the aperture of 0.050 mm is fixedly jointed at the bottom end opening part of the rectangular body bottom filter frame in a closed manner; the top filtering and screening structure comprises a rectangular top filtering frame, the rectangular top filtering frame is correspondingly assembled and located on the upper portion of the rectangular bottom filtering frame in a sliding mode, and a second filtering and screening bottom net with the hole diameter being 0.9 mm is fixedly connected to the bottom end opening of the rectangular top filtering frame in a closed mode. The technical problems that in th