U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Field and laboratory investigation of warm mix asphalt in Texas.

File Language:
English


Details

  • Alternative Title:
    Project title: Evaluation of warm-mix asphalt new technologies
  • Creators:
    Estakhri, Cindy ; Button, Joe ; Alvarez, Allex E.
  • Corporate Creators:
    Texas Transportation Institute
  • Corporate Contributors:
    Texas. Dept. of Transportation ; United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA/TX-10/0-5597-2
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Texas
  • Edition:
    Technical report; Sept. 2006-Aug. 2009.
  • Corporate Publisher:
    Texas Transportation Institute
  • Abstract:
    During the first half of this research study, TxDOT had only placed 1000 tons of warm mix asphalt ; (WMA) as part of a demonstration project. By the end of this three year study, TxDOT had placed more ; than 1,000,000 tons of WMA and allowed its use in all dense-graded mixtures through the implementation ; of a special provision 341---020. This research project was focused on evaluating all aspects of WMA and ; identifying the effects of WMA technologies on mixture design, lab performance characteristics, and field ; performance. An ongoing implementation study is underway to continue to monitor performance of WMA ; field sections. ; Researchers found that WMA technologies improve the compactability of mixtures which can lead to a ; reduction in design asphalt content if incorporated in the mixture design process. Laboratory tests indicate ; that warm mix asphalt is initially less stiff than hot mix but stiffens considerably during the first year of ; service and with increases in laboratory oven curing time/temperature. Field performance of warm mix ; projects has, thus far, been comparable to hot mix projects. X-ray CT and ground penetrating radar testing ; indicate the uniformity of WMA construction may be better than that for hot mix construction.
  • Format:
    PDF
  • Funding:
    0-5597
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/18317/dot_18317_DS1.pdf
  • File Type:
    Filetype[PDF - 6.94 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:b88a7b62b12df3a7080fe65b3ee382893e57afd96378adcc1067755d2b26e569
PREVIOUS
File Language:
English
ON THIS PAGE
Details
 Found an issue?
Send us an email at:
publishinghd@cdc.gov
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.
BACK TO TOP