A torsional shear test device for asphalt pavement materials and structures
A technology for asphalt pavement and shear testing, which is applied in the direction of testing the ductility of materials, measuring devices, analyzing materials, etc., and can solve problems such as the inability to accurately reflect the mechanical behavior of asphalt mixture pavements.
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[0025] refer to figure 1 , is a torsional shear test device for asphalt pavement materials and structures of the present invention. An ambient temperature box 2 is arranged on its support 1, a reaction force frame 3 is fixed in the environment temperature box 2, a worm gear mechanism 13 is arranged at the bottom of the reaction force frame 3, and the worm screw input end of the worm gear mechanism 13 is connected to a pressure motor 14, The output end of the worm gear is connected to the lower support plate 12 for clamping the test piece, and the lower support plate 12 is provided with a pressure sensor 11 . The vertical movement of the lower support plate 12 can be realized by the pressure motor 14 and the worm gear mechanism 13, and the vertical pressurization function of the lower support plate 12 on the test piece can be completed.
[0026] At the same time, a torque motor 5 is fixed on the top of the ambient temperature box 2, a bearing 7 is fixed on the top plate of the...
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