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Greener Building Blocks

A BuildingGreen Top 10 Product: Pozzotive Plus CMUs and Concrete Brick from Kingston Block

Posted on Nov 16 2009 by Daniel Morrison

--From BuildingGreen's 2009 Top-10 Products list

Pozzotive Plus concrete masonry units (CMUs) and concrete facing brick are manufactured using up to 30% post-consumer recycled glass as a portland cement substitute and an average of 50% post-consumer recycled masonry aggregate from local sources in the Northeast. The recycled glass pozzolan (with the tradename Pozzotive), made by Empire Resource Recycling, LLC, is ground to about 15 microns (a finer powder than portland cement) and used in place of the cement, saving about one ton of CO2 for every ton of cement replaced.

Pozzotive Plus CMUs have been made with up to 90% recycled aggregate, though 50% is typical. Compared to conventional CMUs and brick, Pozzotive Plus products require less energy to produce, are stronger, and have greater moisture and chemical resistance, according to the company. Both products meet and exceed ASTMAmerican Society for Testing and Materials. Not-for-profit international standards organization that provides a forum for the development and publication of voluntary technical standards for materials, products, systems, and services. Originally the American Society for Testing and Materials. C-90 for Loadbearing Concrete Masonry Units and C-129 for Nonloadbearing Concrete Masonry Units, and the brick meets and exceeds ASTM C-1634 for concrete facing brick. The company’s brick is manufactured with a standard bed depth of 3-5/8" and is available in three sizes: Modular (2-1/4" x 7-5/8"); Ledge (2-1/4" x 15-5/8"); and Royal (3-3/4" x 15-5/8"). In addition a Partition brick is available for interior applications (5-5/8" x 3-3/4" x 15-5/8"). Architectural CMUs are available in a wide range of shapes and sizes. Both the brick and CMU come in nine standard colors, in either ground-face or suede finish.

More information:
Kingston Block & Masonry Supply, LLC
270 North Ave., Suite 200
New Rochelle, NY 10801
Phone: 914-633-3393

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