Development of a database for surface energy of aggregates and asphalt binders.

Howson, Jonathan; Bhasin, Amit; Masad, Eyad; Lytton, Robert; Little, Dallas; Texas Transportation Institute

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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

Development of a database for surface energy of aggregates and asphalt binders.

2009-07-01
By Howson, Jonathan ; Bhasin, Amit ; Masad, Eyad ; ...

English

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Details:

Creators:

Howson, Jonathan ; Bhasin, Amit ; Masad, Eyad ; Lytton, Robert ; Little, Dallas

Howson, Jonathan ; Bhasin, Amit ; Masad, Eyad ; Lytton, Robert ; Little, Dallas Less -
Corporate Creators:

Texas Transportation Institute
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Asphalt Pavements Binders Binders (Materials) Pavements, Asphalt--Texas--Databases Surface Energy Surface Energy--Measurement
Publication/ Report Number:

FHWA/TX-09/5-4524-01-1
Resource Type:

Tech Report
Geographical Coverage:

Texas
Edition:

Technical report; Sept. 2007-Aug. 2008
Corporate Publisher:

Texas Transportation Institute
Abstract:

TxDOT project 0-4524 evaluated the influence of surface energy of aggregates and binders on the resistance

of asphalt mixtures to moisture damage. The results from this research lead to the development of a threetier

approach to assess the moisture damage resistance of asphalt mixtures. This approach is based on testing

and evaluating the physical and/or mechanical properties of the constituent materials, the fine aggregate

mixture, and full asphalt mixture. In the first tier, an energy-based parameter termed the energy ratio (ER) is

calculated using the surface energy measurements. This parameter is used as a screening tool to select

binders and aggregates that have good resistance to moisture damage. The second and third tiers rely on

measuring the mechanical properties of the fine aggregate mixture and full asphalt mixture, respectively.

This report documents the results of an implementation project of the testing methods and analysis

approaches of the 0-4524 project. This implementation project included (a) providing training on the

developed experimental and analysis methods, (b) conducting measurements of the surface energy of

binders, additives, and aggregates, and (c) developing a database of surface energy measurements. This

database will be useful as a diagnostic tool for finding the cause of poor moisture damage resistance in mixes

and to suggest remedies through modification with anti-strip agents, lime, polymers, other additives, or

through a change of materials in extreme cases.
Format:

PDF
Funding:

5-4524-01
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:11818ba1b6cb8477b685b154759eb3d4c370cb5b535f84b21fe0c469a8b1ea04
Download URL:

https://rosap.ntl.bts.gov/view/dot/5663/dot_5663_DS1.pdf
File Type:

[PDF-2.03 MB]