Quantifying Thermomechanical Fatigue of Hot Mix Asphalt: A Feasibility Study

Stewart, Calvin M

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Quantifying Thermomechanical Fatigue of Hot Mix Asphalt: A Feasibility Study

2018-10-01
By Stewart, Calvin M

File Language:

English

Details

Creators:

Stewart, Calvin M
Corporate Creators:

University of Texas at El Paso. Center for Transportation Infrastructure Systems
Corporate Contributors:

Southern Plains Transportation Center ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. University Transportation Centers (UTC) Program
Subject/TRT Terms:
Publication/ Report Number:

SPTC14.1-96
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report 1/15/2016 – 05/15/2018
Corporate Publisher:

Southern Plains Transportation Center
Abstract:

Highway agencies and the research community have struggled for many years to improve the repeatability of lab tests that characterize the fracture and fatigue properties of hot mix asphalt (HMA) materials. The major source of uncertainty stems from the fact that specimens grossly deviate from the requirements of solid and continuum mechanic; thus the test protocols and interpretation schemes are inaccurate. Even though this mismatch between theory and experiment is pragmatic and practical for day-to-day use, a systematic experimental-theoretical-numerical paradigm is needed to evaluate the fracture and fatigue resistance of HMA materials; especially when subjected to boundary conditions imposed by common lab tests. The outcome of this study are laboratory results that can be used with certainty and improved test specifications and procedures that can delineate material-, equipment-, and operator-related uncertainties. In this study, the feasibility of adapting state-of-the-art testing techniques are evaluated towards understanding better the problems of fracture and fatigue in HMA.
Format:

PDF
Funding:

DTRT13-G-UTC36
Download URL:

https://rosap.ntl.bts.gov/view/dot/62465/dot_62465_DS1.pdf
File Type:

[PDF - 3.99 MB]
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha256:9997913d939c002b747f87c31f08302decabc7e1c9179c74fb10f74fd4f3044c

File Language:

English

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