Quantitative characterization of microstructure of asphalt mixtures

Bhasin, Amit; Badgekar, Swapneel; Izadi, Anoosha

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Quantitative characterization of microstructure of asphalt mixtures

2010-10-01
By Bhasin, Amit ; Badgekar, Swapneel ; Izadi, Anoosha

File Language:

English

Details

Creators:

Bhasin, Amit ; Badgekar, Swapneel ; Izadi, Anoosha
Corporate Creators:

Texas Transportation Institute ; University of Texas at Austin. Center for Transportation Research ; United States. Department of Transportation. University Transportation Centers (UTC) Program
Subject/TRT Terms:
Publication/ Report Number:

SWUTC/10/476660-00070-1;Report 476660-00070-1
Resource Type:

Research Paper
Geographical Coverage:

Texas
Corporate Publisher:

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

The microstructure of the fine aggregate matrix has a significant influence on the ; mechanical properties and evolution of damage in an asphalt mixture. However, very little ; work has been done to define and quantitatively characterize the microstructure of the asphalt ; mastic within the asphalt mixture. The main objective of this study was to quantitatively ; characterize the three dimensional microstructure of the asphalt binder within the fine ; aggregate matrix of an asphalt mixture and compare the influence of binder content, coarse ; aggregate gradation, and fine aggregate gradation on this microstructure. Results indicate ; that gradation of the fine aggregate has the most influence of the degree of anisotropy ; whereas gradation of the coarse aggregate has the most influence on the direction anisotropy ; of the asphalt mastic within the fine aggregate matrix. Addition of asphalt binder or ; adjustments to the fine aggregate gradation also resulted in a more uniform distribution of the ; asphalt mastic within the fine aggregate matrix.
Format:

PDF
Funding:

DTRT07-G-0006
Download URL:

https://rosap.ntl.bts.gov/view/dot/18623/dot_18623_DS1.pdf
File Type:

[PDF - 4.97 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha-512:54850f6efc060c232ee4baf26526c205467d128b61fb9070c9683572fe02102abd34760e0ac9c21e86c3211c6aeb66c390bb0aae681bc48d67d420dd885f1e31

File Language:

English

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