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

Evaluation of soil moisture barrier.

File Language:
English


Details

  • Creators:
    Browning, Gary
  • Corporate Creators:
    Mississippi. Dept. of Transportation. Research Division
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA/MS-DOT-RD-99-21 & 23
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Mississippi
  • Edition:
    Final report.
  • Corporate Publisher:
    Mississippi. Dept. of Transportation
  • Abstract:
    This report is an extension report and examines one of the measures being tried to stabilize the development ; of pavement damage on expansive soils, which is the use of horizontal moisture barriers. The moisture barrier ; will not stop horizontal flow, but is designed to stop rainwater from penetrating into the subgrade soils ; thus reducing soil swelling, measured by a reduction in the moisture variance. ; On both sides of the roadway, the moisture barrier begins 9' (2.74 m) from the pavement centerline, extends to ; 6' (1.83 m) beyond the bottom of the ditch, and is under a minimum of 18" (0.46 m) of soil. The performance ; of the moisture barrier was measured twice yearly by moisture sampling and four times yearly by roadway ; roughness measurements. ; The moisture barriers on both project did not reduce the IRIs or the moisture variance, as they were expected ; to do. Future use of this design of horizontal moisture barriers on pavements is not recommended. The ; moisture barrier did not produce a smoother ride than the unprotected pavement in the roughness tests or reduce ; the moisture variance.
  • Format:
    PDF
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/24123/dot_24123_DS1.pdf
  • File Type:
    Filetype[PDF - 1.21 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha-512:577d79d20753c92164fa2f160bcb53a72d04f7ee05dff53ed2d3a15e5c176e73b903ee21ed22b318f47ce1b425a498c310494424984d90c9c6d69eee1d03d431
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