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I-55 OGFC field permeability testing.

File Language:
English


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  • Edition:
    Final report.
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  • Abstract:
    An OGFC test section was constructed on I-55 in Copiah County, MS during the

    spring/summer of 2007. As part of the study, literature was reviewed and a falling head

    permeability device was identified that has been used in laboratory and field studies of

    OGFC/PFC permeability. The falling head device was fabricated along with a vehicle mounted

    reaction frame. Drawings for the apparatus are included in the report. In situ permeability tests

    were conducted in wheel paths and between the wheel paths of the driving and passing lanes of

    the highway in one tenth mile increments. The measurements were initiated approximately six

    months after construction and then every six months for two and one-half years.

    A goal of the research was met in that it has been shown OGFC can be successfully

    designed using local Mississippi aggregates and polymer modified asphalt. In service, the

    resulting OGFC can carry significant traffic while maintaining an adequate level of in situ

    permeability. The OGFC did not exhibit loss of aggregate through surface raveling or

    significant spalling along cracks generated at the juncture of the laydown machine screed and

    screed extensions during construction.

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    PDF
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  • Main Document Checksum:
    urn:sha-512:2270fff474fb573a669df735bfeca6c14cec99f6765acec1212539ac1feac3f76f94fdc6602eae1bc722ce05ad401727357fbb25297401a77572b54bb425f92b
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    Filetype[PDF - 1.07 MB ]
File Language:
English
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