The utility model belongs to the technical field of concrete
slump tests, and particularly relates to a
concrete slump test detection scale which comprises a datum plate and a vertical measuring scale plate, an
insertion hole is formed in the datum plate, the vertical measuring scale plate is connected to the inner wall of the
insertion hole in a sliding mode, a
silica gel plate is arranged at the bottom end of the vertical measuring scale plate, and the
silica gel plate is connected with the datum plate in a sliding mode. The
silica gel plate is in contact with the bottom of the vertical
measuring ruler plate, a connecting frame is installed at the top end of the silica gel plate, and a built-in air bag and an air
pressure sensor are installed in the vertical
measuring ruler plate. The silica gel plate firstly makes contact with a sample, the silica gel plate drives the connecting frame to extrude the built-in air bag under the counter-acting force of the sample, so that the air
pressure sensor can sense the change of pressure, the driving motor can receive an instruction to stop driving, the vertical
measuring ruler plate does not descend any more, and the probability of bumping the sample is reduced; and a worker can directly hold the detection device for reading, and the
operation mode is simple, convenient and rapid.