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    Utilization of Recycled Glass as Aggregate in Controlled Low-Strength Material (CLSM)

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    Incoming glass from curbside recycling programs is successfully being utilized as aggregate replacements. The colored glass that can not be used by local bottle manufacturers is crushed to a 1/2 in. (12.5mm) material and used in various construction projects. The most successful use of processed glass aggregate (PGA) to date, has been in replacing up to 100% of the aggregate in controlled low-strength material (CLSM). It has proven to be successful and has gained acceptance by contractors in the Boulder, Colorado area.


    CLSM, flowable fill, back fill, construction, pipe, glass, recycling, recycled glass, PGA

    Author Information:

    Ohlheiser, TR
    Vice President — General Manager, Western Mobile Denver Aggregate Division, Denver, CO

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP13062S