Date of Award
12-5-2018
Document Type
Thesis
Degree Name
Engineering, MSE
First Advisor
Zahid Hossain
Committee Members
Ashraf Elsayed; Paul Mixon
Call Number
LD 251 .A566t 2018 R69
Abstract
Stripping related moisture damage in asphalt pavement has been recognized as a serious concern to the state Departments of Transportations (DOTs). The current moisture sensitivity tests methods are mostly conducted at micro and macro levels and focused on qualitative measurements. In this study, an atomic level investigation is done to quantify the moisture damage of the asphalt binders. Binders used in this study include two Performance Grade (PG) base binders along with their modified counterparts using polyphosphoric acid (PPA), styrene-butadiene-styrene (SBS), and SBS plus PPA. Three different types of liquid anti-stripping agents (LAAs) are also evaluated in this study. The AFM results show that the base binder has the least resistance while the SBS-modified binder provides sufficient strength in preventing the moisture damage. Findings of this study are expected to help transportation agencies to have a better understanding of moisture damage and select suitable binders for the construction of pavements.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Roy, Sumon, "Evaluation Of Moisture Susceptibility of Asphalt Binders Using Atomic Force Microscopy (AFM)" (2018). Student Theses and Dissertations. 485.
https://arch.astate.edu/all-etd/485
