Laboratory investigation of a novel method to accelerate healing in asphalt mixtures using thermal treatment.

Bhasin, Amit; Narayan, Atul; Little, Dallas N.; Texas Transportation Institute

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Laboratory investigation of a novel method to accelerate healing in asphalt mixtures using thermal treatment.

2009-08-01
By Bhasin, Amit ; Narayan, Atul ; Little, Dallas N.

[PDF-1.86 MB]

English

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Creators:

Bhasin, Amit ; Narayan, Atul ; Little, Dallas N.

Bhasin, Amit ; Narayan, Atul ; Little, Dallas N. Less -
Corporate Creators:

Texas Transportation Institute
Subject/TRT Terms:

[+]

Asphalt--Additives--Testing Asphalt Additives Asphalt Concrete Asphalt Concrete--Cracking--Testing Binders Binders (Materials)--Testing
Publication/ Report Number:

SWUTC/09/476660-00005-1
Resource Type:

Tech Report
Geographical Coverage:

Texas
Corporate Publisher:

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

Asphalt binders have an inherent ability to reverse damage in the form of micro-cracks that is caused

due to the repeated action of external loads. This reversal occurs during rest periods between load

cycles. The phenomenon of crack reversal is referred to as autogenous or self-healing. The main

objective of this project was to apply established principles of healing to investigate a novel technique

to accelerate reversal of accumulated micro-crack in asphalt mixtures. This technique was developed

and evaluated using a laboratory scale set up. Laboratory tests were used to evaluate the impact of

thermal treatment on the fatigue cracking life of asphalt mixtures. Results from this study indicate that

for two out of the three different types of asphalt mixtures, intermittent application of the thermal

treatment resulted in approximately 50% increase in the fatigue cracking life of the mixture.
Format:

PDF
Funding:

DTRT07-G-0006
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:d1c5dbcbbd9f30aee0e34f85a51ec3be5fc61a5a3fac735d061dbe0e4d0fa8b2
Download URL:

https://rosap.ntl.bts.gov/view/dot/17457/dot_17457_DS1.pdf
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Laboratory investigation of a novel method to accelerate healing in asphalt mixtures using thermal treatment.

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