CarbonCure Technologies Inc. and Chicago-based Northfield Block, a division of Oldcastle APG, are leading the green movement sweeping the concrete industry by issuing the first Health Product Declaration (HPD) for any concrete product in North America. This document reveals the health impacts of one of Northfield’s most popular products, Trendstone®, made with CarbonCure’s technology, which includes waste carbon dioxide (CO2) among its dis­closed ingredients.