The invention discloses a device for constantly loading pressure for testing the durability of
reinforced concrete, comprising a touch screen, a controller, an electric
hydraulic pump, an
energy storage tank, a loading
assembly, and a rapid freeze-thaw cycle instrument box, wherein, the loading
assembly comprises fixed left and right baffle plates, a hydraulic jack is fixed on the inner side of one baffle plate, and a
pressure sensor is fixed on the inner side of the other baffle plate, a plurality of slidable slide plates and specimen boxes comprising four-point bending backing plates and rubber boxes are parallelly arranged between the
pressure sensor and the hydraulic jack, specimens are arranged in the specimen boxes; the touch screen is connected with a controller data line, the
pressure sensor is connected with the controller data line, the controller is connected with an electric
hydraulic pump data line, and the hydraulic jack is communicated with the electric
hydraulic pump and the
energy storage tank through a three-way
pipe. According to the invention, real working conditions of the interaction of stress,
chemical attack, dry-wet cycle or freeze-thaw cycle on a concretemember in a practical project can be simulated, thus the data obtained by laboratory tests has great value for
engineering reference.