CEMENT AND CONCRETE ENVIRONMENTAL PRODUCT DECLARATIONS
Environmental Product Declarations (EPDs) measure a wide range of environmental impacts (for example, greenhouse gas emissions, toxic substances, habitat destruction, water impacts, ozone depletion, etc.) at every step of a product’s life cycle — from raw material extraction and processing, to manufacturing, to distribution and disposal or recycling at end of life. Much like a nutrition label, they provide a standard way to communicate the environmental impact of available products and as such are an important part of the life cycle assessment of construction projects.
EPDs are an important tool not only for providing data and transparency on materials but also to support complex integrated design processes that help maximize the role that materials like concrete can play in advanced energy efficient design.
The Cement Association of Canada has registered EPDs for general use and Portland-limestone cements (Portland-limestone cement is branded as Contempra in Canada) with the CSA Group. The cement EPDs, which were prepared by the Athena Sustainable Materials Insitute, can be viewed on CSA Group’s EPD registry listings.
The Canadian Ready-Mixed Concrete Association will be the first to apply the newly registered EPDs for cement when calculating the Life Cycle Analysis (LCAs) and industry-wide EPDs for participating ready-mixed concrete plants across Canada. The LCAs and EPDs will be published for industry use in the fall of 2016.
The Canadian precast/prestressed concrete sector has already produced and registered EPDs for their precast products.