Failure Mode and Bonding Evaluation at the Interface between Asphalt Surface and Semirigid Base

In this paper, two interface treatments were applied to improve the interface condition, and the shear failure test and repeated shear test were conducted to evaluate the bonding conditions. It is found that the interface shear strength and horizontal shear reaction modulus are largest for the roughening-treated specimen, meaning the improvement on the interface bonding condition of roughening treatment is the best. For all three kinds of specimens, both the horizontal shear reaction modulus and the interface bonding percentage decrease with the loading cycles, meaning the interface bonding condition becomes worse due the repeated loading effects. Compared with the untreated and emulsified asphalt-treated specimen, the roughening-treated specimen has the largest shear reaction modulus, the largest bonding percentage, and the smallest modulus reduction ratio, meaning the antidecay property of roughening treatment is the best. However, even with the best treatment of roughening, the interface is not good enough to ensure the full bonding condition.

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  • English

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Filing Info

  • Accession Number: 01633230
  • Record Type: Publication
  • Files: TRIS, ASCE
  • Created Date: Apr 28 2017 10:40AM