Aggregate is a natural resource extracted from the ground and can be crushed and screened to produce different sized aggregates. Aggregates can be used in readymix concrete, asphalt or as fill material for civil engineering and landscaping applications. Technical Information Property Value Unit Aggregate proper es vary by material type, grain size and - - regularity/shape EPD Number: BREG EN EPD 000105 Date of issue: 11 March 2016 Expiry Date: 10 March 2021 BF1331ECOP Rev 0.3 Page 3 of 10 © BRE Global Ltd 2016 Product Contents Material/Chemical Input % Crushed Rock 58.1% Sand & Gravel 35.3% Slag aggregate 6.6% Manufacturing Process Aggregates covered in this EPD are produced via three main routes: Aggregates from quarries that are extracted from the ground (with machinery and in some cases explosives), marine aggregates that are dredged from the seabed and recycled or slag aggregates that are produced by crushing slags produced by the steel industry. Electricity, fuels and water are used on site in order to produce aggregates. Aggregate is transported either directly to the customer or may be transported to a Tarmac operated rail loading depot prior to distribution. The process flow diagram is shown below: EPD Number: BREG EN EPD 000105 Date of issue: 11 March 2016 Expiry Date: 10 March 2021 BF1331ECOP Rev 0.3 Page 4 of 10 © BRE Global Ltd 2016 Construction Installation Aggregate is assumed to be transported to the customer by lorry. Aggregate is an intermediate product and the use of the aggregate itself is not expected to result in impacts during construction or installation. Use Information Given the nature of the product and its application, there are no anticipated impacts associated with the use phase of aggregate. Reference Service Life The reference service life will be equal to the lifetime of the individual structure in which the aggregate is used. For the purposes of this study a reference service life for a building of 60 years has been modelled. End of