The University of Washington, College of Built Environments, Department of Architecture developed this Product Category Rule (PCR) for ISO 14025 Type III Environment Product Declarations (EPDs) and/or GHG Protocol Conformant Product ‘Carbon Footprint’ of Concrete. This product category rule (PCR) covers the product ‘concrete’ and enables the quantification and reporting of the environmental impacts associated with the production of that product from cradle-to-gate.
This PCR was developed specifically for use in North America. Care should be used if adapting for use in other regions, as policies regarding energy use and waste allocation are not globally consistent.
This PCR can be used to model the environmental impacts of the concrete component of products that use concrete including, but not limited to, cast in place concrete, precast concrete, concrete masonry units and concrete pavements, provided that the life cycle impacts of all additional materials and processes are accounted for and the information is integrated into a comprehensive LCA.
The goal of this PCR is to encourage concrete producers to quantify, report, better understand and reduce the environmental impacts of concrete production and to enable the creation of mixture-specific EPDs. The rules are designed to provide meaningful and applicable standards that enable producers and specifiers to:
- Quantify the environmental impacts of specific concrete mixture designs;
- Encourage the reporting of supply chain-specific EPDs for upstream constituent materials;
- Enable concrete producers to track and reduce the environmental impacts of their operations and products;
- Enable environmental impacts to be used as additional performance metrics for concrete
|PCR Concrete Version 1.0|