Implementation of MEPDG for asphalt pavement with RAP.

Hossain, Zahid; Zaman, Musharraf; Solanki, Pranshoo; Ghabchi, Rouzbeh; Singh, Dharamveer; Adje, David; Lewis, Sharon; University of Oklahoma

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Implementation of MEPDG for asphalt pavement with RAP.

2013-06-01
By Hossain, Zahid ; Zaman, Musharraf ; Solanki, Pranshoo ; ...

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Creators:

Hossain, Zahid ; Zaman, Musharraf ; Solanki, Pranshoo ; Ghabchi, Rouzbeh ; Singh, Dharamveer ; ... More +

Hossain, Zahid ; Zaman, Musharraf ; Solanki, Pranshoo ; Ghabchi, Rouzbeh ; Singh, Dharamveer ; Adje, David ; Lewis, Sharon Less -
Corporate Creators:

University of Oklahoma
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Asphalt Pavements Binders Creep Dynamic Modulus Of Elasticity Fatigue (Mechanics) Hot Mix Paving Mixtures Mechanistic Design Pavement Design Recycled Materials Rheological Properties Superpave
Publication/ Report Number:

OTCREOS10.1-45-F
Resource Type:

Tech Report
Geographical Coverage:

Oklahoma
Corporate Publisher:

Oklahoma Transportation Center
Abstract:

This study explored the potential of using high reclaimed asphalt pavement (RAP) content with hot mix asphalt (HMA) in base and surface courses for conditions prevailing in Oklahoma. A total of eight Superpave mixes (four mixes for each of two field demonstration sites) containing different percentages of RAP namely, 25% RAP and 40% RAP for S3 base courses and 0% RAP and 10% RAP for S4 surface courses were designed and tested. Besides the evaluation of laboratory and plant mixes, cores and block samples collected from test sections were tested to examine their mechanistic performance and to estimate input parameters needed for the 2002 Mechanistic-Empirical Pavement Design Guide (MEPDG). Furthermore, rheological and chemical properties of virgin, recovered and blended (virgin binder mixed with the recovered binder from RAP) were evaluated. The mechanistic characteristics of mixes were evaluated by conducting creep compliance, dynamic modulus, Hamburg Wheel Track, and 4-point beam fatigue tests. The creep compliance results showed reduction in compliance of the mix due to increase in the RAP content. The dynamic modulus test results illustrated that the asphalt mix containing a higher amount of RAP has higher dynamic modulus values. The increase in RAP content reduced rutting susceptibility and improved moisture damage potential of both S3 and S4 mixes. Asphalt binder rheological test results reveal significant increase of viscosity, stiffness and performance grade (PG) of the blended binders compared to the virgin counterparts. Elemental analyses show significant increase in oxygen content in the blended binders, which are in agreement with the rheological characteristics of the binders. Findings of this study are expected to be useful for pavement professional in analyzing and designing HMA mixes with high RAP contents.
Format:

PDF
Funding:

DTRT06-G-0016
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

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urn:sha256:606a6786293d51af964e062a9f9fa2b3eb7af1394d2acbe9c332860c5b6e3186
Download URL:

https://rosap.ntl.bts.gov/view/dot/27069/dot_27069_DS1.pdf
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Implementation of MEPDG for asphalt pavement with RAP.

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