City Mix Ultra-Lightweight Additive, Bulk Bag (50 Cu.Ft. / 150 Lbs.)

  • CityMix is an extraordinarily lightweight, durable and user-friendly material suitable for blending in a wide variety of concrete, stucco and masonry products. The technology allows varying portions of the heavy sands and gravels common to cement-based mixtures to be replaced with ultra-lightweight CityMix material in order to reduce overall product weight. And since CityMix weighs approximately 3 lbs per cubic foot, even a modest ingredient volume substitution for typically 90-100 lbs per cubic foot conventional fine aggregates can produce a significant weight reduction.

    CityMix also helps enhance certain desirable cement-based product performance characteristics such as flexibility, resilience, freeze-thaw durability, water repellency and crack resistance. The material is composed of approximately 99% pure recycled waste (by volume), thereby creating – to the best of CityMix’s knowledge – the “greenest” and most lightweight additive ever made commercially available for use in concrete products.

    The percentage of CityMix ultra-lightweight synthetic aggregate that may be substituted in any given concrete mixture is fully customizable, so CityMix can serve as a suitable weight-reducing material for a wide variety of both structural and non-structural applications. For example, a structural concrete building panel might only be able to be reduced 5% in weight and still retain its minimum code or engineering requirements, but common non-structural objects like landscape blocks, parking curbs or statuary, for example, might be reduced in weight by as much as 70% and still be fully acceptable for their intended purposes. But regardless of the degree to which any particular product might most effectively incorporate CityMix, the market demand for high-performing, economical, and “green” lightweight concrete products that can dramatically reduce shipping, handling, installation and overall building construction costs is virtually limitless.

    • Cementitious Mixtures Can Be Designed to Specific Unit Weight.
    • Improved Freeze-Thaw Resistance.
    • Increased Flexural Strength.
    • Tailored Compressive Strength.
    • Improved Crack Resistance.
    • Improved Thermal Resistance.
    • Decreased Permeability.
    • Ultra-Lightweight Additive (Appx 2.5 – 3.0 lb/ft3).
    • Non-Static Handling.
    • Mixes Easily & Uniformly.
    • Non-Combustible (ASTM E84 Class A Flame and Smoke Rating).
    • Contains 99% Recycled Content (By Volume).
    • Helps Reduce Transportation, Handling and Installation Costs.
    • Enables Lighter Structure Weight.
  • CityMix is designed to serve as an ultra-lightweight VOLUME SUBSTITUTION MATERIAL for equal parts by volume of natural aggregates and SHOULD ONLY BE MEASURED BY VOLUME, never by weight. Even minor particle size and density variations can have a significant effect upon CityMix weight or bulk density.

  • Measuring or adding the product into a batch mix by WEIGHT is never advised. To begin the mix designing process, the effective volume of CityMix should be regarded as approximately 50% of the bulk volume, which is similar to natural aggregates, such as sand. Test mixing should always be performed to verify or adjust the effective volume factor of CityMix. Minor variations can be expected due to each individual manufacturer’s mixer, materials and/or process.

  • CityMix helps recycle the largest volume consumer waste product in the North American landfill into a lightweight, user-friendly and performance-enhancing additive for use in concrete, the world’s most common building material.

  • Traditional concrete products are typically made with heavy and rurally mined natural aggregates requiring energy-demanding processing, handling and transporting equipment and procedures. Conversely, the use of recycled, ultra-lightweight CityMix containing concrete provides significant potential for net carbon reduction. LEED documentation support and other product sustainability information is available from your CityMix representative.

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