| Dieser Datensatz ist Bestandteil der ÖKOBAUDAT. |
Process information
| Key Data Set Information | |
| Location | DE |
| Reference year | 2015 |
| Name |
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| Use advice for data set | Scope: This EPD is an association EPD for all member companies of the Bundesverband der Gipsindustrie e.V. and the Industriegruppe Estrichstoffe in accordance with the list of members on www.gips.de. The LCA result comprises the manufacture of screed with calcium sulphate binding agents in Germany and can be used in particular for planning purposes prior to awarding contracts. The market for screeds with calcium sulphate as a binding agent is well covered by the members of the Bundesverband der Gipsindustrie e.V. and the Industriegruppe Estrichstoffe. The technical data was taken from the publications of the Bundesverband der Gipsindustrie e.V. and the Industriegruppe Estrichstoffe currently available as well as the manufacturers represented there. This document is translated from the German Environmental Product Declaration into English. It is based on the German original version EPD-BVG-20150175-IAG1-DE. The verifier has no influence on the quality of the translation. System boundary: The declaration type corresponds with an EPD from the cradle to construction of the building structure. The following information modules have been considered according to DIN EN 15804: raw material supply (Module A1), transport (Module A2) and manufacture (Module A3), including supply of all substances, products and energy. Information for Modules A4 and A5 is taken from the product declaration of the Industrieverband Werkmörtel e.V. (IWM). |
| Technical purpose of product or process | Calcium sulphate flowing screed and conventional calcium sulphate screeds are used in the installation of large screed surfaces without joints. These products can be used for various screed constructions, e.g. as compound screed /DIN 18560-3/, screed on separation layer /DIN 18560-4/, screed on insulation layer /DIN 18560-2/, heated screed /DIN 18560-2/, screed on hollow floors /DIN EN 13213/. |
| Classification number | 1.1.03 |
| Classification |
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| General comment on data set | This declaration refers to calcium sulphate flowing screed and conventional calcium sulphate screed. 1 kg of the dry mixture prior to adding water on the construction site is used as the declared unit. This dry mixture displays a dry bulk density > 1500 kg/m3. The primary binding agent is represented by bindable calcium sulphate which is hydrated as flowing screed (liquid) or conventional screed (moist) by adding water on the construction site, independent of the processing consistency. The declaration is independent of delivery as a premixed dry mortar, ready-mixed mortar or binder compound only requiring the addition of aggregate or water. Regardless of the fact that cement can also be added as an aggregate, this declaration does not apply for cement screed where cement is used as the primary binding agent. This declaration only applies for screed and binding compounds delivered loose in transport containers, i.e. not in bags. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Data set valid until | 2020 |
| Technological representativeness | |
| Technology description including background system | Various manufacturing processes can be used for the products. The plant with the greatest capacity for using natural anhydrite, alpha-hemihydrate, thermal anhydrite and HF anhydrite, respectively, as primary binding agents was modelled for this EPD. The following (simplified) manufacturing processes were selected: 1. Screed made from natural anhydrite 2. Screed made from alpha-hemihydrate 3. Screed made from thermal anhydrite 4. Screed made from HF anhydrite * New LCA by KIWA GmbH TBU /KIWA screed/ [Legend:] Alpha-Halbhydrat* - Alpha-hemihydrate* Naturanhydrit - Natural anhydrite Thermischer Anhydrit - Thermal anhydrite Zement - Cement Transport - Transport Strom Mix - Electricity mix Mischer - Mixer Sondermüll - Hazardous waste Staub - Dust Hausmüll - Household waste Estrich Naturanhydrit - Screed made from natural anhydrite HF-Anhydrit - HF-anhydrite Kalksteinsplitt - Limestone grit Gesteinskörnungen - Aggregate particles Gipsabfall - Gypsum waste Estrich Alpha-Halbhydrat - Screed made from alpha-hemihydrate Estrich Thermischer Anhydrit - Screed made from thermal anhydrite Estrich HF-Anhydrit - Screed made from HF anhydrite Technical data: Technical construction data can be derived from information supplied by the manufacturers and the designated screed constructions, e.g. regarding the nominal screed thickness. As the declaration applies only until delivery to the construction site, this technical data is not listed here. Reference is made to the leaflet “Calciumsulfat-Fließestriche” (Calcium sulphate flowing screeds) which provides information for planning /IGE Planning/. Declared unit: These calculations refer to the arithmetic mean of data initially recorded separately for: - 1 kg natural anhydrite screed - 1 kg alpha-hemihydrate screed - 1 kg thermal anhydrite screed - 1 kg HF anhydrite screed |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators