Environmental Product Declaration. Long products of hot rolled structural non-alloy steel coming from electric furnace: ribbed bars.

Transcription

1 ECO PLATFORM EN Environmental Product Declaration Long products of hot rolled structural non-alloy steel coming from electric furnace: ribbed bars. Designation Code: ECO EPD Ref. nº: 059 Date of first issue: Date of this issue: Expiry date: VERIFIED EN ISO 14025:2010 EN 15804:2012

2 CONTENTS 1 General information 2 Product 3 Life cycle assessment 4 Verification 2

3 1 General information 1.1. Identification and description of the organisations carrying out the declaration. This (EPD) has been developed by the Spanish Association for Sustainable Steel called Asociación Sostenibilidad Siderúrgica for the following organisations: A.G. Siderúrgica Balboa, S.L., Grupo Alfonso Gallardo. Jerez de los Caballeros, Badajoz (Spain) ArcelorMittal Gipuzkoa SLU (Zumárraga), Grupo ArcelorMittal. Zumárraga, Guipúzcoa (Spain) ArcelorMittal Zaragoza, S.A., Grupo ArcelorMittal. La Cartuja Baja, Zaragoza (Spain) Celsa Atlantic, S.L., Celsa Group. Laracha, La Coruña (Spain) Cía. Española de Laminación, S.L. CELSA, Celsa Group. Castellbisbal, Barcelona (Spain) Corrugados Azpeitia, S.L., Grupo Alfonso Gallardo. Azpeitia, Guipúzcoa (Spain) Corrugados Getafe, S.L., Grupo Alfonso Gallardo. Getafe, Madrid (Spain) Megasa Siderúrgica, S.L., Grupo Megasa. Narón, La Coruña (Spain) Nervacero, S.A., Celsa Group. Valle de Trapaga, Vizcaya (Spain) Siderúrgica Sevillana, S.A., Rivagroup. Alcalá de Guadaira, Sevilla (Spain) SN Maia, S.A., Grupo Megasa. Maia (Portugal) SN Seixal, S.A., Grupo Megasa. Seixal (Portugal) 1.2. Identification of the product Long products of hot rolled structural non-alloy steel coming from electric furnace: ribbed bars Declared unit The declared unit is kg of product Name of the program AENOR GlobalEPD Program Génova Madrid (Spain) Tlf.: AENOR is a founding member of the Association ECO Platform of European EPD Program Operators Conformity This has been developed and verified in accordance with EN ISO 14025:2010 and EN 15804:

4 1.6. Identification of the Product Category Rules (PCR) PCR descriptive title Panel that approved this PCR PCR registration date and code PCR version number PCR public enquiry period Long products of hot rolled structural non-alloy steel coming from electric furnace STEEL RCP-001-AENOR GlobalEPD EN 15804:2012 serves as the core PCR 001 PCR approval date PCR valid until Program operator to Asociación Española de Normalización y Certificación C/ Génova Madrid (Spain) 1.7. Date of issue of the declaration and validity period This EPD is issued on and will be valid for 5 years Information modules This EPD covers the product stage cradle to gate. It includes all the life cycle stages of the product stage: raw material supply, transport, manufacturing and associated processes (defined in the information modules A1, A2 and A3). This EPD does not cover the Construction Process stage (information modules A4 and A5), the Use stage (information modules B1-B5) or the End of Life stage (information modules C1-C4). It does not cover module D EPD representativity Steel production of the participating steel mills represents over 95 % of the market for ribbed bars in Spain and Portugal Where can more information on this EPD be found? The following websites may be consulted for more information on this EPD: 4

5 2 Product 2.1. Product description This EPD applies to ribbed bars (long products of hot rolled structural non-alloy steel coming from electric furnace) for reinforcing of concrete Product application Ribbed bars are used for the reinforcement of concrete structures. They are used for creating the reinforcing steel products that are placed in casts or formwork before the pouring of concrete. In both shapes of straight bar and coil they are used for the making of reinforcing steel, welded fabric and lattice girders Product components Steel is composed mainly of iron (over 95 %), with a small content of carbon (usually less than 2 %) and a very small content of other materials (see EN Definition and classification of grades of steel). The minimum levels of composition for certain elements that define non-alloy steel are found in the standard EN The chemical composition and properties of steel wire rod are established in the following standards: Figure 1. Ribbed bars (straight bars and coils) These products are supplied to the market in the shape of bars or coils and their generic name is ribbed bars. Ribbed bars have a circular, or almost circular, solid section. In order to improve the bonding properties with the concrete, they have projections on their surface called ribs. UNE Ribbed bars of weldable steel with special characteristics of ductility for the reinforcement of concrete. UNE Ribbed bars of weldable steel for the reinforcement of concrete. EN Steel for the reinforcement of concrete - Weldable reinforcing steel General. None of the components of steel as a final product are included in the List of Candidate Substances of Very High Concern subject to authorization. 5

6 3 Results of the life cycle assessment (LCA) This EPD is based on a Life Cycle Assesment cradle to gate complying with the standard ISO Environmental management-life cycle assessment-requirements and guidelines (Reference: Report Lyfe Cycle Assesment of long products of hot rolled structural non-alloy steel coming from electric furnace, Environmental Resources Management (ERM), July 2013). The specific data of the production process used in the LCA comes from the steel mills involved in the elaboration of the EPD and correspond to the years 2009 and For non-specific data (i.e.: raw material production) the data base of Ecoinvent 2.2 was used. The tool SimaPro 7.3. was used to create the model and for calculating. The chosen calculation rule procedures were a combination of the principal methods used in LCA studies: ReciPe, CML and Cumulative Energy Demand System boundaries. Information modules This EPD covers the following stages and information modules within the life cycle (Figure 2): Product Stage (information modules A1-A3) BUILDING LIFE CYCLE INFORMATION A1 - A3 A4 - A5 B1 - B7 C1 - C4 D PRODUCT STAGE A1 A2 A3 A4 CONSTRUCTION PROCESS STAGE A5 B1 B2 USE STAGE B3 B4 B5 C1 END OF LIFE STAGE C2 C3 C4 Benefits and loads beyond the system boundary Raw material supply Transport Manufacturing Transport Construction Installation process Use Maintenance B6 B7 Repair Replacement Refurbishment Operational energy use Operational water use De-construction / demolition Transport Waste processing Disposal Information modules included in EPD Figure 2. Life cycle stages and information modules for the building assessment. 6

7 The following stages and processes are included in the system boundaries: þ A1 Raw material supply This EPD applies to ribbed bars, long products of hot rolled structural non-alloy steel coming from electric furnace. The raw material is mostly scrap metal (88,5 %), together with small quantities of pig iron (<1 %) and direct-reduced iron 1 ( <1 %) as additional iron provision. Other raw materials used (approximately 10 %) in the manufacturing of steel are lime (quicklime and dolomitic lime), coal, ferro-alloys, fluorite and calcium carbide. This information module includes the manufacturing of raw materials covering: Extraction of resources Transport to the steel mill Energy and fuel consumption Consumption of other resources (e.g. water) The generation of waste, air emissions and release into water and soil This information module also includes the previous treatment that steel scrap undergoes to be suitable for steelmaking in the following processes: transport to steel mills, classification by quality classes and compaction. Steel scrap can be classified in base of its origin as pre-consumer 2 and post-consumer 3. 19,2 % of scrap steel used to manufacture this product is pre-consumer and 80,8 % is post-consumer. þ A2 Transport of raw material to mill The transport of all raw and ancillary materials has been taken into account from the production sites (suppliers) to the steel mills. In each case the different types of transport have been considered, whether boat, truck or train. The internal transport within the steel mills has also been taken into consideration. þ A3 Manufacturing The manufacturing process has two clearly differentiated parts: The electric furnace mill where steel is produced and refined until the suitable chemical composition is obtained. In this part the billet is produced by a continuous casting process. The hot rolling of billets which produces the end product. The final performance characteristics are reached by thermo-mechanical processes. In this stage the following are considered: consumption of materials (including ancillary materials), energy consumption, release into water and soil due to the manufacturing process, and waste that is generated in this life cycle stage. As a result of this manufacturing process some products like slag, mill dust and rolling scabs are generated and are either sold or given away for another use. 1 Direct-reduced iron (DRI) is produced from direct reduction of iron ore. 2 Steel scrap produced during the manufacturing of steel parts and components such as machine shavings, tools, press and guillotine cuttings, etc. 3 Steel scrap coming from the dismantling of steel structures of buildings, industrial plants, ships, automobiles, home appliances, etc. 7

8 3.2. Declaration of environmental parameters derived from LCA: The environmental parameters derived from LCA for this product category are listed below Impact indicators The data is included in the following table: LIFE CYCLE STAGES PRODUCT STAGE IMPACT CATEGORY PARAMETER UNIT TOTAL A1 A2 A3 Global warming Global warming potential kg CO 2 equiv 545,67 123,65 55,26 366,76 Ozone depletion Ozone depletion potential kg CFC 11 equiv 4,89E-05 1,06E-05 0,83E-05 3,00E-05 Acidification for soil and water Acidification potential of soil and water kg SO 2 equiv 2,59 0,56 0,38 1,65 Eutrophication Eutrophication potential kg (PO 4 )3- equiv 0,63 0,25 0,06 0,32 Photochemical ozone formation Photochemical ozone formation potential kg Ethene equiv 0,15 0,04 0,01 0,10 Depletion of abiotic resources-elements Abiotic depletion potential for non fossil resources kg Sb equiv -3,24E-02 1,13E-04 1,15E-07-3,25E-02 Depletion of abiotic resources fossil fuels Abiotic depletion potential for fossil resources MJ (Net Calorific Value) 8.749, ,44 819, ,46 Table 1. Parameters describing environmental impacts Key: A1. Raw materials supply. A2. Transport. A3. Production 8

9 Use of resources The data is included in the following table: PARAMETER UNIT LIFE CYCLE STAGES PRODUCT STAGE TOTAL A1 A2 A3 Use of renewable primary energy excluding renewable primary energy resources used as raw materials MJ, net calorific value 1.139,65 80,79 1, ,23 Use of renewable primary energy used as raw materials MJ, net calorific value Total use of renewable primary energy (primary energy and primary renewable energy resources used as raw materials) Use of non renewable primary energy, excluding non-renewable primary energy resources used as raw material Use of non renewable primary energy used as raw materials Total use of non renewable primary energy resources (primary energy and primary energy resources used as raw materials) MJ, net calorific value 1.139,65 80,79 1, ,23 MJ, net calorific value 8.749, ,45 819, ,46 MJ, net calorific value MJ, net calorific value 8.749, ,45 819, ,46 Use of renewable secondary fuels MJ, net calorific value Use of non-renewable secondary fuels MJ, net calorific value Use of secondary material kg 1.127, ,55 Net use of fresh water resources m 3 2,62 0,96 0,05 1,61 Table 2. Parameters describing use of resources Key: A1. Raw materials supply. A2. Transport. A3. Production 9

10 Waste and output flow categories. The data is included in the following table: LIFE CYCLE STAGES PARAMETER UNIT PRODUCT STAGE Hazardous waste disposed kg 7,23 Non hazardous waste disposed kg 29,57 Radioactive waste disposed kg 0 Note 1: The material generated during the manufacturing process and considered as waste is sent to the dump for its final disposal (non reusable materials, non recycled and/ or non recovered materials). The dust generated by the mill belongs to the category of hazardous waste and is sent to the dump. The slag produced during the process of fusion and refining (white and black respectively) belongs to the category of non-hazardous waste. Table 3. Parameters describing waste categories LIFE CYCLE STAGES PARAMETER UNIT PRODUCT STAGE Components for re-use kg 140,07 Materials for recycling kg 0 Materials for energy recovery kg 0 Exported energy MJ per energy carrier 0 Note 2: The category of components for re-use includes all of those that are destined for a different use in another plant rather than the original use in the original manufacturing plant. Components for re-use are mill dust and slag, which may be used to recover zinc, or for the production of other steel products (for example for sintering), or as aggregates in different applications. Another component for re-use are the rolling scabs which are used in different installations because of their high iron content. Table 4. Parameters describing other output flows 10

11 4 Verification CEN standard EN serves as the core PCR Independent verification of the declaration and data, according to EN ISO 14025:2010 internal external Third-party verifier: Note 1: This EPD may not be comparable to other EPDs developed in other programs. Note 2: Construction product EPDs may not be comparable to others if they do not comply with European Standard EN

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