Vertua® concrete groups (based on mix CEM I and CEM III) produced by Cemex Polska

The values determined to calculate A1 (cement) and A3 originate from verified CEMEX LCI inventory data. A1 values (raw materials) were prepared considering specific EPDs, Ecoinvent data and economic allocation data processed for ashes. The allocation rules used for this EPD are based on general requirements provided in ITB PCR A and EN 15804. As no co-products are produced, the flow of materials and energy and the associated release of substances and energy into the environment are related exclusively to the concrete mix produced. Cements (produced by 3 cement plants of CEMEX in Poland) were used identified as the weighted average mass of production for each plant. In the case of fly ash, eco-product from electricity production used as a cement constituent, economic allocation was applied. Minimum 99.5% of impacts from the production lines were allocated to product covered by this declaration. Emissions allocated in clinker/cement production (module A1) are assessed using international methods for ETS system declaration. The specific prices for fly ash declared by the producer were used for the economic allocation. Calculations for GWP indicator are made taking into account gross and net emissions. The indicated gross value includes the CO2 emissions from waste incineration (excluding biomass fraction of fuels), net-value excluding impacts from alternative waste-based fuels. In this assessment, all information gathered from data collection for the production of concrete has been modelled, i.e. all raw materials used, the electrical energy and other fuels used, use of ancillary materials and all direct production waste. Transport data on input was considered. No cut-offs have been made in accordance with EN 15804. The machines and facilities (capital goods) required for and during production are excluded, as is transportation of employees. Calculations for GWP indicator are made taking into account gross and net emissions.

Concrete is specified and supplied in accordance with EN 206. Delivered to site on a just-in-time basis, mixed concrete may be cast into any conceivable shape with almost no limit on volume. When hardened, concrete can carry substantial compressive loads by itself, but is more frequently reinforced to substantially increase its tensile and flexural strength. Concrete is used for site-mixed structures, precast structures and structural precast products in buildings prefabricated structures and structural prefabricated products in buildings and buildings. Cemex products specified in accordance with the documents: PN-EN 206, PN-S-9612, PN-EN 14227-1, PN-EN 14227-3, PN-EN 14227-5, PN-EN 998-2 and National Technical Assessments of Cemex products cited on the website www.cemex.com