Process information
| Key Data Set Information | |||
| Location | GR | ||
| Reference year | 2024 | ||
| Name |
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| Use advice for data set | Scope: This core-EPD relates to 1kg of SikaTard®-930 (admixture group Retarder) applied into the building, manufactured at Sikas plant in Sika Hellas Kalochori 57009,Thessaloniki and is representative for the year 2022. The results in this core-EPD were calculated using an LCA-tool verified by IBU in 2023. System boundary: Declaration type with respect to life cycle stages covered according to clause 5.2 EN 15804+A2 is cradle to gate with modules C1–C4 and module D (A1–A3, A4, A5, C and D). Modules taken into account: • A1 Production of preliminary products • A2 Transport to the plant • A3 Production including provision of energy, production of auxiliaries and consumables and waste treatment • A4 Transport from the construction site to the installation site • A5 Installation, admixtures applied into the building during A5 phase operations. At this stage, an impact of the production and treatment of installation residue equal to 1% of the product is considered. • C1-C2-C4-D The building deconstruction (demolition process) takes place in C1 module which considers energy production and consumption in terms of diesel and all the emissions connected with the fuel-burning process. After the demolition, the admixture is transported to the end-of-life processing (C2 module) where all the impacts related to the transport processes are considered. One scenario is considered for the final treatment of the waste: • 100% disposal (C4), modelled by landfill process where admixtures end their life cycle. Module D accounts for benefits that are beyond the defined system boundaries. Credits are generated during the incineration of the installation scrap in module A5. | ||
| Technical purpose of product or process | SikaTard®-930 finds its primary application in both wet and dry spray shotcrete, serving to delay the cement hydration process until needed. This capability allows for the stabilization of mixed concrete over extended periods, spanning hours or even days, ideal for applications such as tunnelling projects. SikaTard®-930 is mainly used in wet and dry spray shotcrete where cement hydration of the concrete mix is prevented until it is required. It is therefore possible to stabilise mixed concrete for hours or even days i.e. in tunnelling work. The product needs a declaration of performance taking into consideration EN 934-2:2009+1:2012, Admixtures for concrete, mortar and grout – Part 2: Concrete admixtures – Definitions, requirements, conformity, marking and labelling and the CE- marking. For the application and use the respective national provisions apply. | ||
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| General comment on data set | SikaTard®-930 is an admixture developed for the control of cement hydration. SikaTard®-930 stabilises concrete mixes without setting for extended periods and without negatively influencing their quality. | ||
| Copyright | Yes | ||
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| Time representativeness | |||
| Data set valid until | 2029 | ||
| Technological representativeness | |||
| Technology description including background system | SikaTard®-930 finds its primary application in both wet and dry spray shotcrete, serving to delay the cement hydration process until needed. This capability allows for the stabilization of mixed concrete over extended periods, spanning hours or even days, ideal for applications such as tunnelling projects. SikaTard®-930 is mainly used in wet and dry spray shotcrete where cement hydration of the concrete mix is prevented until it is required. Technical data: SikaTard®-930 is set according to EN 934-2:2009+1:2012, Admixtures for concrete, mortar and grout – Part 2: Concrete admixtures – Definitions, requirements, conformity, marking and labelling, Declaration of Performance 20929148 and provided with the CE Marking. Declared unit: The EPD refers to the declared unit of 1kg of concrete admixture (retarder) applied into the building with a density of 1.12 g/ml in accordance with IBU PCR 04-2023 part B | ||
Modelling and validation
| Subtype | specific dataset | ||||
| LCA methodology report | |||||
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| Documentation of data quality management | |||||
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| Compliance Declarations | |||||
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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| Compliance |
Compliance system name
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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Administrative information
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| Data generator | |
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| Time stamp (last saved) | 2024-06-20T00:00:00 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | 2981c3cc-43e0-450d-9e2c-9fcbb922cded |
| Data set version | 00.04.000 |
| Registration authority | |
| Registration number | EPD-SIK-20240179-CBA2-EN |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
Environmental indicators
Indicators of life cycle