Device and method for measuring bonding strength between contaminated rock surface and solidified material

A device for measuring a bonding strength between a contaminated rock surface and a solidified material, comprising a fixing and measuring assembly and four rock slabs enclosing a first rectangular prism, wherein outer surfaces of the four rock slabs are fitted to two transverse support plates and two longitudinal support plates, respectively;

• the two longitudinal support plates are arranged between the two transverse support plates;
• upper and lower ends of the rock slabs are provided with an upper cover and a bottom plate, respectively;
• the upper cover and the bottom plate are detachably fixed to the two transverse support plates, respectively;
• the two transverse support plates are detachably fixed to each other through a second screw;
• two ends of each of the transverse support plates are provided with limit plates;
• the limit plates each are provided with a second threaded hole, and the second threaded hole matches a third screw;
• and the third screw is configured to support the longitudinal support plate;
• the upper cover is provided with a feeding port and a motor;
• the motor is configured to drive an agitator through a coupling;
• when working, the agitator is located within a space enclosed by the four rock slabs;
• and the bottom plate is provided with a discharge port;
• the fixing and measuring assembly comprises four posts, and the four posts enclose a second rectangular prism;
• a crossbar is provided between each two adjacent posts;
• the crossbar is connected to an L-shaped clip through a telescopic rod;
• a hydraulic device is provided among the four posts;
• and a movable end of the hydraulic device is provided with a supporting airbag;
• the L-shaped clip is configured to restrict upward or transverse movement of the transverse support plate, the longitudinal support plate, and the rock slab during the measurement of the bonding strength between the contaminated rock surface and the solidified material;
• the hydraulic device is configured to provide a jacking force during the measurement of the bonding strength between the contaminated rock surface and the solidified material;
• and
• the supporting airbag is configured to come into contact with the solidified material and push the solidified material upwards during the measurement of the bonding strength between the contaminated rock surface and the solidified material;
• wherein a size of the supporting airbag is slightly smaller than a size of a measurement space, wherein the size of the supporting airbag approximates a size of a contaminated measurement space;
• a jacking surface of the hydraulic device is slightly smaller than the size of the supporting airbag, providing a cushioning space around the supporting airbag;
• the design facilitates sliding over the uneven contaminated rock surface by a local depression means without affecting a push of the solidified material.