A kind of asphalt low-temperature ring cracking and freezing disc structure and asphalt low-temperature ring cracking tester
A kind of asphalt and ring cracking technology, applied in the direction of material thermal expansion coefficient, etc., can solve the problem that the correlation between creep performance and failure performance is not very good, etc.
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[0047] The invention relates to a ring-crack freeze-off disk structure and a low-temperature asphalt ring-crack tester. A bituminous ring-cracked freeze-breaking disc structure includes a base 1 and an unexpanded ring 6. Reference figure 1 , figure 1 It is a top view of the base, the base 1 has an annular groove 2 in the middle, and the base 1 is provided with a synapse 5 on the outer ring wall 4 of the annular groove 2, refer to figure 2 , figure 2 for figure 1 A cross-sectional view of the middle A-A section, the synapse 5 is a cylindrical synapse horizontally arranged on the outer ring wall 4 of the annular groove 2. A circular recess 8 is provided in the middle of the base 1, and the circular recess 8 is concentric with the annular groove 2. The radius of the circular recess 8 is equal to the radius of the inner ring wall 3 of the annular groove 2. The depth of the circular recess 8 is smaller than the depth of the annular groove 2. The material of the non-expandable ...
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