Process information
| Key Data Set Information | |
| Location | DE |
| Reference year | 2014 |
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| Use advice for data set | Scope: The EPD applies for member companies of the Bundesverband der Gipsindustrie e.V. in accordance with the current list of members on www.gips.de for the products manufactured in Germany. The Life Cycle Assessment considers specific information supplied by the manufacturers and suppliers of components exclusively for the production stage from the cradle to the plant gate. This document is translated from the German Environmental Product Declaration into English. It is based on the German original version EPD-BVG-20140074-IAG1-DE. The verifier has no influence on the quality of the translation. System boundary: Type of EPD: cradle to gate Modules A1-A3 (product stage) include the production of raw materials and transport thereof, the provision of energy and manufacturing processes required for production. |
| Technical purpose of product or process | Gypsum binders can be manufactured for various applications which are indicated by the respective name in accordance with European standards or traditional, possibly deviating, names combined with applications indicated by the manufacturer only. An overview is provided by the Gypsum Data Book issued by the Bundesverband der Gipsindustrie e.V. /Gypsum Data Book/ and the IGB Stucco Manual /IGB/ published by the building plaster industrial group of the Bundesverband der Gipsindustrie e.V.. |
| Classification number | 1.4.04 |
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| General comment on data set | Gypsum binder in accordance with /DIN EN 13279-1/ is the base product for industrial manufacturing of various gypsum plasters but also for all prefabricated elements made of gypsum. It is extracted through calcination of calcium sulphate dihydrate (CaSO4 2 H2O) and comprises calcium sulphate in its various hydrate phases, e.g. hemi-hydrate (CaSO4 ½ H2O) and anhydrite (CaSO4). Gypsum binder is a bindable material ground to powder whose curing process is triggered by the addition of water. This can be carried out at the construction site (gypsum plaster, gypsum filler and gypsum-based adhesive) or in the plant within the framework of board production. Gypsum binder forms the basis for manufacturing gypsum plaster (for automatic or manual plastering), gypsum filler material and gypsum-based adhesives as well as for model plaster, stucco and fixing plaster. |
| Copyright | No |
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| Quantitative reference | |
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| Time representativeness | |
| Data set valid until | 2019 |
| Technological representativeness | |
| Technology description including background system | During the manufacturing process, raw gypsum is burned as gypsum binder where it is available as hemi-hydrate, anhydrite III and anhydrite II gypsum phases. Gypsum plaster is also admixed with powdered limestone, sand or perlite, and additives such as binding retarders or cellulose derivatives which are added in dry form to the calcined calcium sulphates. Technical data: The technical data is based on the following standards: Requirements on gypsum binders in accordance with /DIN EN 13279-1/. /DIN EN 13963/ also applies for filler, fine filler and jointing compound. Additional technical data refers to the hardened products after finishing with water at the construction site. This technical construction data, which refers to the down-stream processing after the plant gate, results from following the manufacturer's information for construction of the building. As this LCA only considers the production stage, these properties are not listed here for systematic reasons. If necessary, more information is available in the standards, the Gypsum Data Book issued by the Bundesverband der Gipsindustrie e.V. /Gypsum Data Book/ and information supplied by the manufacturer (member companies of the Bundesverband der Gipsindustrie e. V. on www.gips.de). Declared unit: This declaration refers to 1 kg material in the respective delivery form (powder product, not mixed with water). Material requirements and yield are indicated in the product information or can be obtained from the manufacturer. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators