1 results about "Constant angular velocity" patented technology

The present application relates to the technical field of compression test, and discloses a vibration water tightness test equipment and method for building waste recycled fine aggregate, which comprises a base and a hydraulic control system. Through the linkage structure of the inserted sleeve, the pressure arm and the limiting seat, the pressure rod is gradually moved to the rotation center of the rocker arm during the constant angular velocity deflection of the rocker arm, the length of the pressure arm is continuously shortened, the continuous decrease of the displacement and the moving speed is realized under the same rotation angle, the gradual pressure effect of the rapid settlement in the early stage and the slow pressure stabilization in the later stage is formed, and the pressure pressure can be simultaneously and adaptively increased according to the change rule of the continuously increased resistance and stiffness of the test piece during the compression process. The nonlinear deformation rule of the recycled fine aggregate test piece, that is, the large initial pore, the fast settlement, the small resistance in the early stage, and the particle embedding and compacting, the sudden increase of the hardness and the resistance in the later stage, is adapted, and the detection authenticity and accuracy of the core parameters such as the ultimate compressive strength, the steady creep and the settlement deformation are greatly improved.