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The product is 150mm Wide prestressed concrete T-beam, manufactured by Atlas Concrete and supplied to the United Kingdom construction market for use as a structural floor and roof element within precast concrete systems.
The T-beam is produced using high-strength prestressing steel and structural concrete, cast in reusable moulds and cured under controlled factory conditions prior to dispatch. The beams are designed to provide efficient structural performance in combination with concrete infill blocks or slabs, and are typically installed using crane-assisted lifting methods.
The main material components vary on each site, with Silloth mixing concrete on site, using; varied aggregates, ad-mix, water and CEM I, and Manchester using ready-mix concrete. Both use the same prestressing wires. A full breakdown of material contributions can be found in the Additional Technical Information.
Manufacture of the declared product is undertaken using two alternative production routes within the Atlas Concrete supply chain. in two production sites Silloth and Manchester.
The Global Warming Potential total (GWP-total) variation between the two sites at Product Stage (Modules A1-A3) is 18.10%, and 16.96% from Product Stage to End-of-Life excluding Module D (Modules A1-C4).
The environmental performance declared in this EPD therefore represents a weighted average across both manufacturing routes and sites, based on their respective contributions to total annual production. This approach ensures that the declared results are representative of the average product placed on the market, in accordance with EN 15804 and EPD Ireland Product Category Rules.
