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Process Data set: Cement DYNAMIK CEM II/A-M (S-LL) 52,5 N from Kujawy Cement Plant (en) en

Key Data Set Information
Reference year 2023
Name
Cement DYNAMIK CEM II/A-M (S-LL) 52,5 N from Kujawy Cement Plant
Technical purpose of product or process The main component of cements according to EN 197-1 is clinker. It is produced from raw materials such as limestone and clay, silica or other waste materials which are crushed, homogenized and fed into a rotary kiln. The raw materials are sintered at a temperature of 1450°C to form new compounds. Clinker consists mainly of oxides of calcium, silicon, aluminum and iron. In a second phase calcium sulfates and possibly additional cementitious or inert materials are added to the clinker. All constituents are ground leading to a fine and homogenous powder. The natural raw materials for cement production are mainly calcareous materials such as limestone, sand and aluminacontaining materials such as clay or shale, which are widespread. Alternative raw materials, such as different type of ash, slag or other waste materials are used in the process as substitutes for natural ones. Raw resource is preheated using input gases and then fired in a rotary kiln at a temperature of approximately 1450°C. Currently one of the main fuels used in the process is alternative fuel that is derived from waste and its share is growing. Cement production through the use of alternative fuels, tries to reduce environmental impact, which is one of the basic strategic assumptions of the company. Clinker is ground together with setting time regulator and other additives. The LCA assessment encompassed the production phase (A1-A3, see Table 3) and the following processes/modules: A1 – raw material production: fuel mining, raw material mining, electricity generation, alternative fuel production; A2 – transport: raw material transport; A3 – production of the product: raw meal production, consumption of fuel for firing, electricity consumption for grinding.
General comment on data set The values determined to calculate A3 originate from verified manufacturer inventory data. A1 values (raw materials) were prepared considering GCCA data. The allocation rules used for this EPD are based on general ITB PCR A. Production of cement is a line process. Mass based allocation was used. Minimum 99.5% of impacts from the production lines were allocated to product covered by this declaration. Energy supply was inventoried and allocated to the product assessed on the mass basis. Emissions allocated in clinker production are assessed by Lafarge using international methods for emission system declaration. 99.0% materials and 100% energy consumption were inventoried in a factory and were included in calculation. In the assessment, all significant parameters from gathered production data are considered, i.e. all raw material used per formulation, utilized energy, and electric power consumption, direct production waste, and available emission measurements. The following processes were excluded from the LCA study: use of grinding balls. The total of neglected input flows per module A1-A3 does not exceed the permitted maximum of 1% of energy usage and product mass. Tires consumption for transport was not taken into account. The components like: dyes, foils, papers, labels, tapes with a percentage share of less than 0.1% were not included in the calculations. It is assumed that the total sum of omitted processes does not exceed 1% of all impact categories. In accordance with EN 15804 machines and facilities (capital goods) required for and during production are excluded, as is transportation of employees.
Copyright Yes
Owner of data set
Quantitative reference
Reference flow(s)
Time representativeness
Data set valid until 2028
Technological representativeness

Indicators of life cycle

IndicatorDirectionUnit Production
A1-A3
Input
  • 424
Input
  • 0
Input
  • 424
Input
  • 945
Input
  • 0
Input
  • 945
Input
  • 317
Input
  • 1.33E+3
Input
  • 2.07E+3
Input
  • 0.448
Output
  • 0
Output
  • 0
Output
  • 0
Output
  • 4.24
Output
  • 3.13
Output
  • 0
Output
  • 0
Output
  • 0

IndicatorUnit Production
A1-A3
  • 945
  • 0.000136
Acidification potential (AP)
  • 1.12
  • 0.0278
  • 492
Ozone Depletion Potential (ODP)
  • 0.00000435
Photochemical Ozone Creation Potential (POCP)
  • 0.984