WRAP has launched an Open Tender inviting bids to carry out a Life Cycle Assessment of Aggregates.The purpose of this is to develop a Life Cycle Inventory and Assessment for aggregates produced from both primary and recycled resources. The study will make a comparison between processing options for aggregates for unbound applications, aggregates for concrete, and those for asphalt.
The study will look at all aspects of extraction and processing of primary resources through to the point of their dispatch as aggregates. The excess production of fines where sales and production are out of balance will be investigated as well as the washing processes that enable the further processing of fines.
The resources that will be examined are: igneous rocks, sedimentary rocks, sand and gravel deposits (land and marine), recycled unbound inert waste, recycled concrete, and recycled asphalt.