A test fixture and test method for obtaining fracture mechanics parameters of asphalt mortar and aggregate interface at the mesoscopic scale
A test fixture and parameter acquisition technology, applied in scientific instruments, analytical materials, strength characteristics, etc., can solve the problems of difficult to eliminate the structure, difficult to quantitatively control the thickness of the interface, etc., to achieve the effect of eliminating the size effect
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[0032] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
[0033] Such as figure 1 As shown, the test fixture for obtaining the fracture mechanics parameters of asphalt mortar and aggregate interface at the mesoscopic scale is composed of three parts, namely: the main body of the test fixture, the specimen pouring platform 5 and the thickness control block of asphalt mortar film. The main body of the test fixture is composed of two T-shaped fixtures 1 arranged symmetrically; the fixture head 2 is 20mm long, 20mm wide, and 3mm thick. There is a square groove in the center with a length of 10mm, a width of 10mm, and a depth of 1mm, which is used to fix the aggregate test. The position of the parts; there is an aggregate 3 in the groove, and epoxy hard glue is used between the aggregate 3 and the clamp head 2, and a layer of asphalt glue film 4 is adhered between the aggregate 3, and the clamp The tai...
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