The Skokie, ILL.-based Portland Cement Association has commissioned research suggesting that the reflectance of concrete satisfies Washington, D.C.-based U.S. Green Building Council LEED requirements for reducing the heat-island effect. Conducted by CTLGroup, Skokie, the research evaluated the reflective properties of concrete using LEED for New Construction Sustainable Sites Credit 7.1 Heat Island Effect: Non-Roof criteria. All 45 sets of concrete samples tested, regardless of the mix, met the required criteria. The cement proved to have more effect on the concrete’s solar reflectance than any other constituent material. This is the first time the solar reflectance of concrete has been examined in relation to LEED points. More information is available at www.cement.org.
In other news, the Silver Spring, Md.-based RMC Research & Education Foundation has released a study about pervious concrete titled “Portland Cement Pervious Concrete Pavement: Field Performance Investigation on Parking Lot and Roadway Pavements.” The report details a long-term field-performance investigation validating that pervious concrete performs well in freeze-thaw environments with little required maintenance. The full report can be downloaded from the foundation’s Web site at www.rmc-foundation.org.