Improved Prediction of Performance of Asphalt Mixes Using a Creep Constitutive Model

Roberts, Lance A; Buchholz, Stuart A; Nam, Soonkie

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Improved Prediction of Performance of Asphalt Mixes Using a Creep Constitutive Model

2014-01-16
By Roberts, Lance A ; Buchholz, Stuart A ; Nam, Soonkie

File Language:

English

Details

Creators:

Roberts, Lance A ; Buchholz, Stuart A ; Nam, Soonkie
Corporate Creators:

RESPEC
Corporate Contributors:

South Dakota. Department of Transportation. Office of Research ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

SD 2011-07-F
Resource Type:

Tech Report
Geographical Coverage:

South Dakota ; United States
Edition:

Final Report June 2012 – January 2014
Corporate Publisher:

South Dakota. Department of Transportation. Office of Research
Abstract:

This project investigated the application of the Brazilian indirect tension strength, constant mean stress, static triaxial compression, and static triaxial creep tests for testing asphalt mixes. Two different asphalt mixes, provided by the South Dakota Department of Transportation (SDDOT), were subjected to the laboratory testing program. Initially, the testing program was to provide the necessary data to conduct advanced viscoplastic modeling of asphalt pavement using finite element software. However, the time-dependent behavior of the asphalt mixes was more complex than anticipated and fitting of the creep test data to a constitutive model was not possible. Instead, the results of the testing program were used to demonstrate a qualitative approach to determine the potential performance of an asphalt mix. In addition, comparing the performance between the two asphalt mixes was accomplished. Recommendations are provided for conducting specific additional testing to further understand how such a program could be used to qualitatively predict asphalt pavement performance.
Format:

PDF
Funding:

311150
Download URL:

https://rosap.ntl.bts.gov/view/dot/77584/dot_77584_DS1.pdf
File Type:

[PDF - 9.87 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:8de1d0c466fd2d9073622584bce75a3b42e52d918e4cf4ee1dc142820e55691b0af23d85c958d49d12873186cf4ff7a397f26c5f98443cea612f9d35d8fe0135

File Language:

English

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