Towards an integrated pavement design approach : using HWTD to support the MEPDG

Grebenschikov, Sergey; Prozzi, Jorge Alberto; Texas Transportation Institute; Texas; University of Texas at Austin. Center for Transportation Research

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Towards an integrated pavement design approach : using HWTD to support the MEPDG

2010-11-01
By Grebenschikov, Sergey ; Prozzi, Jorge Alberto

English

Details You May Also Like

Details:

Creators:

Grebenschikov, Sergey ; Prozzi, Jorge Alberto

Grebenschikov, Sergey ; Prozzi, Jorge Alberto Less -
Corporate Creators:

Texas Transportation Institute ; Texas ; University of Texas at Austin. Center for Transportation Research

Texas Transportation Institute ; Texas ; University of Texas at Austin. Center for Transportation Research Less -
Subject/TRT Terms:

[+]

Asphalt Mix Production Hamburg Wheel Tracking Device (HWTD) Hot-Mix Asphalt Hot Mix Asphalt Mechanistic-Empirical Pavement Design Guide (MEPDG) Pavement Design Pavement Performance Rutting Tables (Data)
Publication/ Report Number:

SWUTC/10/167274-1 ; Report 167274-1

SWUTC/10/167274-1 ; Report 167274-1 Less -
Resource Type:

Research Paper
Geographical Coverage:

Texas
Corporate Publisher:

Southwest Region University Transportation Center (U.S.)
Abstract:

Variability of hot-mix asphalt (HMA) production can have drastic effects on pavement performance. A poor

gradation or an inappropriate amount of asphalt binder could lead to early distresses and shorter pavement life. Other

factors, such as the air void content in the asphalt layer, the type of aggregate gradation used in the mix or

volumetrics, in general, can also have significant effects on performance.

This research study focuses on analyzing two techniques for observing the variability of mix production and its

effects on pavement performance. First, this study focuses on using the Mechanistic-Empirical Pavement Design

Guide (MEPDG) to analyze and predict the effect of the variability of HMA production on rutting in the asphalt

layer. Then, this study makes an attempt to compare the results produced by the MEPDG with the results produced

by the Hamburg Wheel Tracking Device (HWTD). In order to effectively establish correlations between the two

techniques, an experiment was conducted during this research. This experiment focused on using volumetric data

from a previous research project. The data from this project was used to model asphalt mixes and pavement

structures in the MEPDG and the performance results were then compared to actual data obtained in the laboratory

from the Hamburg Wheel Tracking Device (HWTD).

The variability of mix production was captured by analyzing three types of limestone mixes: a coarse densegraded

hot-mix asphalt (Type C, according to TxDOT specification), a fine dense-graded hot-mix asphalt (Type D),

and a medium graded stone matrix asphalt (SMA-D). The master gradation band for each mixture was split into

three categories: fine, target (actual job mix formula), and coarse. Each mixture was tested at a variable range of

binder contents which were obtained using the TxDOT Mix Design Method (TxDOT, 2009). The variability of these

mixes and their resistance to rutting as predicted by the MEPDG and measured by the HWTD is discussed in this

report.
Format:

PDF
Funding:

10727
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e8613291353d2c6f0787ccc003ec80ef40640240697441d58209a0ffbca6fd05
Download URL:

https://rosap.ntl.bts.gov/view/dot/18624/dot_18624_DS1.pdf
File Type:

[PDF-966.16 KB]