Oldcastle APG is committed to the continual development of high-quality products that facilitate green design and sustainability, creating products that have less environmental impact and lower life-cycle building costs.
Specifying Chicago Green can make a significant contribution toward achieving LEED® Materials and Resources Credits for Recycled Materials 4.1 and 4.2. The recycled content in each single 4-inch cmu is equivalent to 8 glass bottles. The glass aggregates are then incorporated into the masonry unit mix designs.Ĭhicago Green masonry units deliver excellent performance, and consistent high-quality that exceed industry standards.Įach 4-inch Chicago Green concrete masonry unit (cmu) contains up to 20% post-consumer recycled glass aggregate (by weight). The glass is first sterilized at high heat temperatures, and then ground by a proprietary process into very fine glass aggregates. Northfield works closely with the glass recycler to create a very specific aggregate gradation of glass.
Recycled glass that originates from the City of Chicago’s waste stream can now be added to these masonry units. Since early 2009, Northfield, a subsidiary of Oldcastle APG, a CRH company, has been investing in research and development to find the optimum recycled material to add to pre-finished concrete masonry units.
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