STP1358

    Compaction Comparison Testing Using a Modified Impact Soil Tester and Nuclear Density Gauge

    Published: Jan 1999


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    Abstract

    The purpose of this paper is to compare test results of a modified Impact Soil Tester (IST) on compacted soil with data obtained from the same soil using a nuclear density gauge at the U.S. Army Corp of Engineer's Buena Vista Flood Wall project in Buena Vista, Virginia. The tests were run during construction of the earth flood wall during the summer of 1996. This comparison testing demonstrated the credibility of the procedure developed for the IST as a compaction testing device. The comparison data was obtained on a variety of soils ranging from silty sands to clays. The Flood Wall comparison compaction data for 90% Standard Proctor shows that the results of the IST as modified are consistent with the nuclear density gauge 89 percent of the time for all types of soil tested. However, if the soils are more cohesive then the results are consistent with the nuclear density gauge 97 percent of the time. In addition these comparison tests are in general agreement with comparison compaction testing using the same testing techniques and methods on compacted backfill in utility trenches conducted earlier for the Public Works Department, Chesterfield County, Virginia.

    Keywords:

    compaction testing, impact soil tester, nuclear density gage, comparison testing


    Author Information:

    Erchul, RA
    Professor, Virginia Military Institute, Lexington, Virginia


    Paper ID: STP14235S

    Committee/Subcommittee: D18.23

    DOI: 10.1520/STP14235S


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