Process information
| Key Data Set Information | |
| Location | DE |
| Reference year | 2014 |
| Name |
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| Use advice for data set | Scope: This validated declaration authorises the holder to bear the official stamp of the Institut Bauen und Umwelt e.V. It applies solely to rendering mortar – normal/finishing render as mineral pre-made mortar for factories in Germany, and is valid until five years after being issued. This is an association EPD whereby the product – which demonstrated the highest environmental impact of the group – was selected from that group for calculating the Life Cycle Assessment of the product. The members of the association can be found on the homepage of the association. System boundary: The lifecycle analysis of the products being examined encompasses the production of the mortar incl. raw material extraction and the provision of energy sources up to the packaged, finished product (module A1-A3), the application of the product incl. transportation to the construction site (module A4-A5), the usage phase (module B1), and disposal of the mortar (module C4). For silo-based goods, the proportionate applications for transportation and manufacturing of the silo are taken into account. Credit for packaging, including energy recovery (module D) is also incorporated into the Life Cycle Assessment. |
| Technical purpose of product or process | Rendering mortar produced in the factory for use as a base coat or finishing render on walls, ceilings, piers, and separating walls of structures which comply with the applicable standards, or on similar primers (e.g. in existing buildings). Normal render for the production of internal plaster and external render without special properties. |
| Classification number | 1.4.04 |
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| General comment on data set | Mineral pre-made mortars are mortars whose constituent substances are mixed at the factory and not at the construction site. According to how the mortar is being used, it can be categorised into three types of pre-made mortar: masonry mortar, rendering mortar, and screed material. Mineral rendering mortars are mixtures of one or more mineral binders, aggregates, water, and additions or admixtures, if necessary, for the production of external render or internal plaster. Rendering mortars are applied to walls and ceilings in one or more layers as required. In addition to the aesthetic design of the surface, they are used as an external render for guarding against the effects of the weather and as internal plasters for providing an even substrate when applying paint coats or wallpaper. In the case of reinforced-concrete ceilings and stairs, renders are also used for fire protection, as well as for thermal protection with the addition of porous aggregates. Depending on the technical data, the base materials and processing aids used, and the practical application, rendering mortars can be categorised in the product groups of normal/finishing render, normal/finishing render with special properties, lightweight render, Reinforcement Fibre Plaster, and insulating render with an especially high proportion of lightweight aggregates. |
| Copyright | No |
| Owner of data set | |
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| Data set valid until | 2019 |
| Technological representativeness | |
| Technology description including background system | Mineral rendering mortars are made in mixing plants in the following steps: Filling of the inventory or weighing containers Conveyance of ingredients and substances being mixed in the mixer Mixing Conveyance of finished products Packaging Loading and shipping of the finished productThe raw materials – sand, binder, lightweight aggregates, processing aids, admixtures, and additions (see base materials) – are stored at the manufacturing plant in silos. From the silos, the raw materials are gravimetrically dosed and intensely mixed according to the respective formulation. The mixture is then packaged and shipped dry as pre-made dry mortar in containers. Declared unit: This declaration refers to the production of one kilogram of typical rendering mortar of the normal/finishing render product group. Only dry mortars are taken into consideration. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators