41b7a5cf-f509-4b0d-bd9b-0fa2b470741bLime sand brick Silka - Xella Baustoffe GmbH (Module A1 - A3)technology mixsingle producer, 17 production sitesdensity 1000 - 2400 kg/m³, average 1800 kg/m³Trade mark SilkaSystemsConstructionThis data set contains the results for the modules A1-A3 according to EN 15804. It includes the preparation of the precursor materials through to raw material extraction and processing, their transport to the factory and the production itself, including the provision of all supplies and materials, energy, and the complete waste treatment or the residual waste during the stage of production.
A comparison with other products is only allowed by a similar application in the building. In principle, a comparison or evaluation of EPD data is only possible if all the datasets are created to be compared to EN 15804 and the product-specific features are considered.01 m³ Silka (1800 kg/m³)The data set represents the Xella specific situation, focusing on the main technologies and the legislative boundary conditions. The production of Silka takes place in 17 plants in Germany.Foreground system:
Lime sand bricks are produced in the following steps: 1. Mixing of raw materials (sand, quicklime, water) 2. Intermediate storage with exotherm reaction, due to the reaction of quicklime to hydrated lime using water 3. Compression anf forming 4. Hardening while steam curing at approx. 200°C under pressure 16 bar in autoclave (about 6 to 12 hours) 5. cooling, packaging and shipping
Background system:
Electricity: Electricity is modelled according to the individual country-specific situations. The country-specific modelling is achieved on multiple levels. Firstly, individual energy carrier specific power plants and plants for renewable energy sources are modelled according to the current national electricity grid mix. Modelling the electricity consumption mix includes transmission / distribution losses and the own use by energy producers (own consumption of power plants and "other" own consumption e.g. due to pumped storage hydro power etc.), as well as imported electricity. Secondly, the national emission and efficiency standards of the power plants are modelled as well as the share of electricity plants and combined heat and power plants (CHP). Thirdly, the country-specific energy carrier supply (share of imports and / or domestic supply) including the country-specific energy carrier properties (e.g. element and energy content) are accounted for. Fourthly, the exploration, mining/production, processing and transport processes of the energy carrier supply chains are modelled according to the specific situation of each electricity producing country. The different production and processing techniques (emissions and efficiencies) in the different energy producing countries are considered, e.g. different crude oil production technologies or different flaring rates at the oil platforms.
Thermal energy, process steam: The thermal energy and process steam supply is modelled according to the individual country-specific situation with regard to emission standards and considered energy carriers. The thermal energy and process steam are produced at heat plants. Efficiencies for thermal energy production are by definition 100% in relation to the corresponding energy carrier input. For process steam the efficiency ranges from 85%, 90% to 95%. The energy carriers used for the generation of thermal energy and process steam are modelled according to the specific import situation (see electricity above).
Transports: All relevant and known transport processes are included. Ocean-going and inland ship transport as well as rail, truck and pipeline transport of bulk commodities are considered.
Energy carriers: The energy carriers are modelled according to the specific supply situation (see electricity above).
Refinery products: Diesel fuel, gasoline, technical gases, fuel oils, lubricants and residues such as bitumen are modelled with a parameterised country-specific refinery model. The refinery model represents the current national standard in refining techniques (e.g. emission level, internal energy consumption, etc.) as well as the individual country-specific product output spectrum, which can be quite different from country to country. The supply of crude oil is modelled, again, according to the country-specific situation with the respective properties of the resources.not reinforced construction elements, bricks used for construction purposes such as load-bearing walls and non-load-bearing wallsLCI resultAttributionalNoneAllocation - market valueAllocation - net calorific valueAllocation - exergetic contentAllocation - massNot applicableForeground system: Aerated concrete waste is used in input and occurs in output. The mentioned wastes are processed in order to be used in the production again. Expenditures for processing are included within the overall production data. Aerated concrete waste flows are modelled as closed-loop.
Background system: For the combined heat and power production, allocation by exergetic content is applied. For the electricity generation and by-products, e.g. gypsum, allocation by market value is applied due to no common physical properties. Within the refinery allocation by net calorific value and mass is used. For the combined crude oil, natural gas and natural gas liquids production allocation by net calorific value is applied.
For details please see the document "GaBi Databases Modelling Principles"Foreground system: none
Background system: All data used in the calculation of the LCI results refer to net calorific value.NoneGaBi Modelling PrinciplesGaBi Water Modelling PrinciplesIBU-Deklaration Xella: (EPD-XEL-20140217-CAD1-DE) Silka Kalksandsteine, 2015Cut-off rules for each unit process: Coverage of at least 95 % of mass and energy of the input and output flows, and 98 % of their environmental relevance (according to expert judgement).
For further details please see the document "GaBi Databases Modelling Principles"NoneLCI modelling is fully consistent. For details please see the document "GaBi Databases Modelling Principles"NoneFor details please see the document "GaBi Databases Modelling Principles"NoneGaBi Modelling PrinciplesIBU-Deklaration Xella: (EPD-XEL-20140217-CAD1-DE) Silka Kalksandsteine, 201595.0n/an/aThe database used for this model is based on data recordings from the year 2013. The observation period is 12 months.n/aA1-A3: The environmental profile includes expenses for the life cycle stages cradle-to-gate (module A1-A3). The production of the packaging has been taken into account within the modules A1-A3.No statementCML2001 - Apr. 2013, Freshwater Aquatic Ecotoxicity Pot. (FAETP inf.)CML2001 - Apr. 2013, Human Toxicity Potential (HTP inf.)CML2001 - Apr. 2013, Marine Aquatic Ecotoxicity Pot. (MAETP inf.)CML2001 - Apr. 2013, Terrestric Ecotoxicity Potential (TETP inf.)CML2001 - Apr. 2013, Abiotic Depletion (ADP elements)CML2001 - Apr. 2013, Global Warming Potential (GWP 100 years), excl biogenic carbonCML2001 - Apr. 2013, Global Warming Potential (GWP 100 years)CML2001 - Apr. 2013, Abiotic Depletion (ADP fossil)CML2001 - Apr. 2013, Eutrophication Potential (EP)CML2001 - Apr. 2013, Photochem. Ozone Creation Potential (POCP)CML2001 - Apr. 2013, Acidification Potential (AP)CML2001 - Apr. 2013, Ozone Layer Depletion Potential (ODP, steady state)CML2001 - Apr. 2013, Global Warming Potential (GWP 100), incl bio. C, incl LUC, no norm/weightCML2001 - Apr. 2013, Global Warming Potential (GWP 100), excl bio. C, incl LUC, no norm/weightCML2001 - Apr. 2013, Global Warming Potential (GWP 100), Land Use Change only, no norm/weightThe LCI method applied is in compliance with ISO 14040 and 14044. The documentation includes all relevant information in view of the data quality and scope of the application of the respective LCI result / data set. The dataset represents the state-of-the-art in view of the referenced functional unit.Sphera Solutions GmbHIABP-GaBiFraunhofer IBPOverall quality according to different validation schemes
GaBi = 1,8 interpreted into "good overall quality" in the GaBi quality validation scheme
ILCD = 1,9 interpreted into "basic overall quality" in the ILCD quality validation scheme
PEF = 1,8 interpreted into "very good overall quality" in the PEF quality validation schemeThe dataset and systems, which are provided with our software and databases for public use into a broad user community, are constantly used, compared, benchmarked, screened, reviewed and results published in various external, professional and third party LCA applications in industry, academia and politics. So user feedback via the online GaBi forum or direct via user information is a standard routine in the maintenance and update process and leads to stable quality and constant control and improvement of data, if knowledge or technology improves or industrial process chains develop or change.IBUXella Baustoffe GmbHThis is a cradle-to-gate dataset (A1-A3)Sphera Solutions GmbH2022-03-01T00:00:00.000ILCD format 1.1Sphera Solutions GmbHNo official approval by producer or operator2022-03-01T00:00:00.00000.00.001Data set finalised; entirely publishedGaBi databasesSphera Solutions GmbHtrueOtherThe EPD owner has agreed to add LCI information corresponding to the EPD to the GaBi databases. The data set can be used free of charge by anybody to perform LCA studies with GaBi software and databases. Any use of the LCI data outside of the GaBi software and databases should not be considered before having received any written permission from Sphera. GaBi (source code, database including extension databases modules and single data sets, documentation) remains property of Sphera Solutions GmbH. Sphera Solutions GmbH delivers GaBi licenses comprising data storage medium and manual as ordered by the customer. The license guarantees the right of use for one installation of GaBi. Further installations using the same license are not permitted. Additional licenses are only valid if the licensee holds at least one main license. Licenses are not transferable and must only be used within the licensee's organisation. Data sets may be copied for internal use. The number of copies is restricted to the number of licenses of the software system GaBi the licensee owns. The right of use is exclusively valid for the licensee. All rights reserved.Sand-lime brick SilkaOutput1.01.00.000Mixed primary / secondaryMeasuredvaluable