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Abstract

To address pavement issues such as shoving and rutting caused by insufficient bonding strength in cape seal layers, this paper investigates the interlayer bonding properties and influencing factors of cape seal. Mechanical tests were conducted using a pavement interlayer shear-pull testing device. Through interlayer pull-off, direct shear, and torsional shear tests, the maximum tensile force, shear force, and torque at failure were obtained. The interlayer bonding performance of cape seal was analyzed in terms of gravel coverage rates, as well as upper and lower layer combinations. The results show that when the gravel coverage rate is 80%-90%, and the cape seal consists of an MS-III micro-surfacing layer combined with a 4.75-9.5 mm single-sized gravel seal, the bonding performance between the cape seal and the underlying layer is optimal.

Publication Date

5-11-2023

DOI

10.14048/j.issn.1671-2579.2023.02.012

First Page

70

Last Page

73

Submission Date

March 2025

Reference

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