Date of Award
Summer 2014
Degree Type
Thesis
Degree Name
Master of Science (MS)
Department
Civil Engineering
First Advisor
Makarand Hastak
Committee Member 1
Jan Olek
Committee Member 2
Jusang Lee
Abstract
This paper presents the development process of modified pull-off test for measurement of in-situ pavement interface bonding strength. The modified test method was validated using two case studies (i.e., delaminated vs. non-delaminated pavements on I-65 and intelligent compacted vs. non-intelligent compacted pavements on US-52) and used for developing a correlation model for estimating a probability of delamination failure at a given pull-off bonding strength. In addition, methodologies for probabilistic interpretations with pull-off test results were explored.
The results demonstrated that the modified pull-off test showed its applicability in measurement of interface bonding condition with both weak and strong conditions. Additionally, its results revealed the statistically significant difference between pull-off bonding strength between delaminated and non-delaminated pavement sections. Another result was The different compaction practices (with and without employing the IC technology) were a minor factor influencing the interface bond condition of the US-52 test pavement sections. Using the pull-off test results, correlation between the pull-off bonding strength and the delamination was modeled and evaluated by the statistical analysis in this study. Based on the model, the methodologies with threshold-based and severity-based delamination estimation are introduced and deemed to be effective in assessment of pavement condition.
Recommended Citation
Ahn, Hyung Jun, "Evaluation of Asphalt Pavement Interface" (2014). Open Access Theses. 469.
https://docs.lib.purdue.edu/open_access_theses/469