oldcastle building envelope indianapolis

The NCMA/CTL Group final test summary has been published, and is available from Oldcastle APG. Oldcastle APG has conducted extensive research and testing with the Concrete Technologies Laboratory (CTL Group) in Skokie, Illinois and the National Concrete Masonry Association Research and Development Laboratory (NCMA) in Herndon, Virginia. 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.

Oldcastle building envelope indianapolis