STP1331

    Development of Engineering Properties for Regular and Quick-Set Flowable Fill

    Published: Jan 1998


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    Abstract

    The purpose of this paper is to report relationships that have been developed in a study performed in Tulsa, Oklahoma, for bearing strength, diggability, and subsidence for regular and quick-setting flowable fills. The bearing strength parameters measured were California bearing ratio (CBR) and subgrade modulus (k). These parameters are typically used in the design of engineered backfill, subgrades, and pavement bases. More easily measured parameters such as hand-held mortar penetration resistance and 3 by 6-in. (76 by 152-mm) cylinder unconfined compressive strength through 365 days were also determined. Aggregate base CBR test values are presented to serve as benchmarks for comparing to CBR values of flowable fills since aggregate base has been used extensively and CBR values are widely known and used in the engineering and construction communities. This paper also presents an economic analysis and a controlled full-scale diggability assessment of regular and quick-set flowable fills. The results of our testing program, excavatability assessment, and economic analysis demonstrate the advantages of quick-setting flowable fills over regular flowable fills for use in street/cut repair applications.

    Keywords:

    controlled low-strength material (CLSM), flowable fill, California bearing ratio (CBR), modulus of subgrade reaction, diggability, backfill, aggregate base, bearing, strength, subsidence


    Author Information:

    Pons, F
    Senior Geotechnical Engineer and Senior Materials Engineer, Law Engineering and Environmental Services, Inc., Tulsa, OK

    Landwermeyer, JS
    Senior Geotechnical Engineer and Senior Materials Engineer, Law Engineering and Environmental Services, Inc., Tulsa, OK

    Kerns, L
    Special Projects Engineer, Tulsa, OK


    Paper ID: STP13063S

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP13063S


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