Determination of the PG binder grade to use in a RAP mix

Stephens, Jack E.; Mahoney, James; Dippold, Cory

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Determination of the PG binder grade to use in a RAP mix

2001-04-01
By Stephens, Jack E. ; Mahoney, James ; Dippold, Cory

[PDF-2.46 MB]

English

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Creators:

Stephens, Jack E. ; Mahoney, James ; Dippold, Cory

Stephens, Jack E. ; Mahoney, James ; Dippold, Cory Less -
Corporate Contributors:

Connecticut. Dept. of Transportation ; University of Connecticut

Connecticut. Dept. of Transportation ; University of Connecticut Less -
Subject/TRT Terms:

[+]

Binders Durability Hot Mix Paving Mixtures Recycled Materials Superpave Test Procedures
Publication/ Report Number:

JHR 00-278
Resource Type:

Research Paper
Geographical Coverage:

Connecticut
TRIS Online Accession Number:

810999
Corporate Publisher:

Connecticut. Dept. of Transportation
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance
Abstract:

The use of Recycled Asphalt Pavement (RAP) in new Hot Mix Asphalt (HMA) has become routine in the part few years. This practice is spurred by the increased amounts of pavement being milled off prior to overlaying. Using RAP has economical and environmental benefits. The drawback to using RAP in pavements is determining the correct virgin binder grade to add to the asphalt mixture. This problem has been accentuated by using the Superpave System for determining the asphalt binder grade. This asphalt binder in RAP is typically much stiffer than the binder grade required by the Superpave System. Determining the correct virgin binder to use in the HMA is critical to ensure that the pavement will be durable enough to last for its anticipated service life. The current methods of determining the correct virgin binder assumes complete blending of the RAP binder and the virgin binder which does not occur. The simple physical testing procedure presented in this paper does not require the Superpave binder test equipment and could be carried out at the mix plant.
Format:

PDF
Funding:

Project 99-1
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6596fc6a3c229808ceab822f5b545f861ab521f2c8199dd7b15a105101d1021c
Download URL:

https://rosap.ntl.bts.gov/view/dot/14366/dot_14366_DS1.pdf
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Determination of the PG binder grade to use in a RAP mix

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