Volume 1, Issue 6 (June 2004)

    Rapid Set, High-Early Strength, Non-Excavatable Flowable Fill

    (Received 10 April 2003; accepted 23 September 2003)

    Published Online: 2004

    CODEN: JAIOAD

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    Abstract

    A high-flow, rapid-set, non-excavatable CLSM mixture called ZOOM was developed for applications where time was critical using normal concrete component materials. The following criteria were established for the ZOOM mixture:

    • Pass the ASTM D 6024 in 6 h or less regardless of subgrade moisture conditions

    • Little or no bleeding or shrinkage

    • Flow as per ASTM D 6103 greater than 222 mm

    • Greater than 207 kPa compressive strength as per ASTM D 4832 in 24 h

    • Be able to perform using a wide variety of Tennessee aggregates

    The development of the ZOOM mixture began in the laboratory in May 2002 using Ohio River Sand (ORS). Subsequently, the mixture proportions were adjusted to produce the desired plastic and hardened properties with other Tennessee fine aggregates. Three successful field demonstrations using different fine aggregates were held across Tennessee in the fall of 2002. ZOOM CLSM met compressive strength development and time of suitability for load application performance criteria at every field demonstration. Plastic properties were adequate but failed to meet the established criteria on two occasions. Fine aggregate properties such as gradation and angularity were found to dictate mixture proportions required to achieve flow, air content, and bleeding characteristics. Average air temperature and CLSM air content were found to be important to time of suitability for load application. The research effort was cosponsored by the Tennessee Department of Transportation and the Tennessee Ready Mixed Concrete Association


    Author Information:

    Crouch, LK
    Professor of Civil Engineering, Tennessee Technological University, Cookeville, TN

    James Dotson, V
    Graduate Research Assistant, Tennessee Technological University, Cookeville, TN

    Clouse, L
    Account Executive, Master Builders Technologies, Knoxville, TN

    Egan, B
    Assistant Engineering Director for Field Operations, Tennessee Department of Transportation Division of Materials and Tests, Nashville, TN

    Hall, SM
    Assistant Engineering Director for Research and Product Evaluation, Tennessee Department of Transportation Division of Materials and Tests, Nashville, TN


    Stock #: JAI11874

    ISSN: 1546-962X

    DOI: 10.1520/JAI11874

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    Author
    Title Rapid Set, High-Early Strength, Non-Excavatable Flowable Fill
    Symposium Innovations in Controlled Low-Strength Material (Flowable Fill), 2003-06-10
    Committee D18