The use of atomic force microscopy to evaluate warm mix asphalt : [executive summary report].

Nazzal, Munir D.; Qtaish, Lana Abu

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The use of atomic force microscopy to evaluate warm mix asphalt : [executive summary report].

2013-01-01
By Nazzal, Munir D. ; Qtaish, Lana Abu

File Language:

English

Details

Creators:

Nazzal, Munir D. ; Qtaish, Lana Abu
Corporate Creators:

Ohio. Dept. of Transportation. Innovation, Research, and Implementation Section
Corporate Contributors:

Ohio University
Subject/TRT Terms:
Publication/ Report Number:

FHWA/OH-2012/19
Resource Type:

Tech Report
Geographical Coverage:

Ohio
Corporate Publisher:

Ohio. Dept. of Transportation. Innovation, Research, and Implementation Section
Abstract:

Warm Mix Asphalt (WMA) has received considerable attention in past few years due to its benefits in reducing energy consumption and pollutant emissions during production and placement of asphalt mixtures, as well as a compaction aid during the construction process. However, many concerns and questions are still unanswered regarding the performance and durability of WMA. One key issue is the moisture susceptibility of WMA. Although the results of standard laboratory tests indicated that WMA may be more susceptible to moisture damage than Hot Mix Asphalt (HMA), data obtained from the field does not support those results. Some data also suggests that the resistance of WMA to moisture damage improves with time and may ultimately be equivalent to that of HMA. In addition, the healing characteristics of WMA have not yet been studied nor evaluated in a methodical, scientific manner. Therefore, research is needed to determine if the degree of healing in WMA is sufficient to increase its resistance to damage, and hence enhance their long term durability.
Format:

PDF
Funding:

State Job Number: 134626
Download URL:

https://rosap.ntl.bts.gov/view/dot/25478/dot_25478_DS1.pdf
File Type:

[PDF - 236.71 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:96f10099fe71a58c70eec2b148b07556d3c7192e126247c3ccd9d7da217b59631550210536484a5d5405a7b0cb167c93bce1021dd2cee870182879ba4b1a6535

File Language:

English

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