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Process Data set: CEM I 42,5 N (st) (en) en de

Key Data Set Information
Location DE
Reference year 2024
Name
CEM I 42,5 N (st)
Use advice for data set Gültigkeitsbereich: Die vorliegende Umwelt-Produktdeklaration bildet die kobilanz der Herstellung des Portlandzements CEM I 42,5 N (st) im Werk Rdersdorf, Deutschland ab. Systemgrenze: Typ der EPD: Wiege-bis-Werkstor. Die gewhlten Systemgrenzen umfassen die Herstellung des Zements einschlielich der Rohstoffgewinnung bis zum fertigen Produkt am Werkstor. Das Produktstadium umfasst: Modul A1: Kalksteinabbau im Tagebau, Brechen des Gesteins, Homogenisierung des Rohstoffes im Rundmischbett, Herstellung und Aufbereitung weiterer Rohstoffe Modul A2: Transport der Rohstoffe zum Werkstor und interne Transporte (z.B. Frderbandwege) Modul A3: Rohmahlung, Klinkerherstellung, Zementmahlung Das Baustadium, das Nutzungsstadium und das Entsorgungsstadium werden in der kobilanz fr Zement nicht bercksichtigt. Die Entwicklung von Szenarien fr diese Stadien muss am Endprodukt (z.B. Beton) erfolgen.
Technical purpose of product or process Cement is mainly used as a binder for concrete, cement screed and cement mortar.
Classification
Class name : Hierarchy level
  • OEKOBAU.DAT: 1.1.01 Mineralische Baustoffe / Bindemittel / Zement
  • IBUCategories: 01 Grundstoffe und Vorprodukte / Zement, Baukalk und andere Bindemittel / Zement
General comment on data set Der Portlandzement CEM I 42,5 N (st) ist ein chromatarmer Normalzement gem EN 197-1. Dieser Zement ist ein hydraulisch erhrtender Baustoff. Er besteht aus einem Gemisch fein aufgemahlener, nichtmetallisch-anorganischer Bestandteile. Nach Zugabe von Wasser entsteht eine Suspension (Zementleim), die aufgrund einsetzender Hydratationsreaktionen sowohl an der Luft als auch unter Wasser erstarrt und erhrtet sowie dauerhaft fest bleibt. Der deklarierte Zement gehrt zur Hauptzementart CEM I und erfllt die Anforderungen an die Zusammensetzung gem der EN 197-1.
Copyright Yes
Owner of data set
Quantitative reference
Reference flow(s)
Material properties of the reference flow
    • gross density: 3.01 kg/m^3
Time representativeness
Data set valid until 2029
Technological representativeness
Technology description including background system The most important raw material component for the production of cement is limestone, which is extracted and crushed in our own opencast mine. The processed limestone is transported to the cement plant, where it is stored in a blending bed and homogenised at the same time. In addition to the limestone, other raw materials, such as silicon, iron, and aluminium carriers, are required as so-called correction components for adjusting the raw material mixture. The raw material components are crushed in a grinding-drying plant and simultaneously dried together. In the first step, the homogenised raw meal is heated to approximately 900 °C in the upstream heat exchanger. It is then burned in the rotary kiln at a peak temperature of 1450 °C to produce so-called clinker. This semi-product clinker is then rapidly cooled in the grate cooler and transported by conveyors to the clinker silos. To control the processing behaviour of the cement, the clinker is always ground with the addition of a sulphate carrier. Depending on the cement types to be produced, additional ground components such as granulated blastfurnace slag or limestone powder are added, and different finenesses of the finished cement are adjusted. The different cement types are kept in separate cement silos for dispatch. In addition to the "bagged cement" filled and palletised in 25 kg bags, the cement is shipped in particular as "bulk cement" in silo trucks.

Indicators of life cycle

IndicatorDirectionUnit Production
A1-A3
Input
  • 27.5
Input
  • 0
Input
  • 27.5
Input
  • 2.14E+3
Input
  • 0
Input
  • 2.14E+3
Input
  • 96.3
Input
  • 1.16E+3
Input
  • 8.3E+2
Input
  • 0.963
Output
  • 0.0727
Output
  • 1.15
Output
  • ND
Output
  • 0
Output
  • 0
Output
  • 0
Output
  • 0
Output
  • 0

IndicatorUnit Production
A1-A3
  • 657
  • 0.0318
  • 657
  • 0.0348
  • 0.0000115
  • 0.911
  • 2.05
  • 3.14
  • 0.0591
  • 0.00393
  • 38.9
  • 0.000103
  • 2.14E+3

IndicatorUnit Production
A1-A3
1This impact category deals mainly with the eventual impact of low dose ionizing radiation on human health of the nuclear fuel cycle. It does not consider effects due to possible nuclear accidents, occupational exposure nor due to radioactive waste disposal in underground facilities. Potential ionizing radiation from the soil, from radon and from some construction materials is also not measured by this indicator.
2The results of this environmental impact indicator shall be used with care as the uncertainties on these results are high or as there is limited experiences with the indicator.
Comparative toxic unit for humans (carcinogenic) (HTP-c) 2
  • 8.01E-7
Comparative toxic unit for humans (noncarcinogenic) (HTP-nc) 2
  • 0.0000121
Incidence of disease due to PM emissions (PM) 2
  • 0.0000206
Human exposure efficiency relative to U235 (IR) 1
  • 13.7
Comparative toxic unit for ecosystems (ETP-fw) 2
  • 50.7
Soil quality index (SQP) 2
  • 501