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Process Data set: CEM II/A-L 42,5 R bulk cement (en) en

Key Data Set Information
Location GB
Geographical representativeness description Ireland
Reference year 2023
Name
CEM II/A-L 42,5 R bulk cement
Use advice for data set This LCA covers the Product stage (A1 - A3).
Technical purpose of product or process The cement is manufactured at the Cemcor cement factory at Cookstown, Co. Tyrone, Northern Ireland, in accordance with B.S. EN 197-1:2011, Compositions, specifications and conformity criteria for common cements. The main material components of the cement are clinker, ground limestone and gypsum. A small amount of bypass dust is added as well as a chromate-reducing agent to the cement. A grinding aid is also added to assist in the grinding process. The clinker comprises the firing of the following products in the kiln at 1,500°C: limestone, shale, flue dust, gypsum with small amounts of iron oxide. A1. Raw materials supply The main raw materials for the clinker are limestone and shale. The main raw materials for the cements are clinker, finely ground limestone, gypsum, and minor additional constituents (inorganic, comprising no more than 5% of the cement). A2. Transport This module covers the impacts of the transport of the raw materials and fuels to the production site. A3. Manufacturing The main raw materials for clinker, limestone and shale are quarried on site, crushed to smaller sizes and mixed to create a homogenous mix. These are then pre-heated before being fed into the cement kiln., where they are burned with a mixture of coal, fuel oil, and alternate fuels. The material that emerges from the kiln is clinker. The clinker is then cooled and transported by conveyor belt to the clinker store, and from there to the cement mill, for grinding to the final cement, with other constituents. The cement mill grinds the clinker and additions as the mill rotates on its horizontal axis. The clinker is inter-ground with the limestone and gypsum additions, and other minor additional constituents, chromate-reducing agents, and a grinding aid (to increase grinding efficiency).
General comment on data set The dataset is representative for the production processes used in 2019. The data Quality Level, according to Table E.1 of N15804:2012+A2:2019, Annex E, is 'very good'. Allocation of electricity types and amounts to the various manufacturing processes has been provided by Cemcor Cement Ireland Ltd along with production waste and direct emissions. Allocation of impacts to the products is based on the product composition mass. Flows related to human activities such as employee transport are excluded. The construction of capital assets such as buildings, manufacture of machines and transportation systems are also excluded since the related flows are assumed to be negligible compared to the manufacture of the building material when compared to these systems over a full lifetime of operation. The cut-off criteria of section 6.3.6 of EN15804:2012+A2:2019 have been followed, where 99% of the total energy and materials are included, and the total neglected input flows for the modules reported on in the LCA are less than 5% of the energy usage and mass.
Copyright Yes
Owner of data set
Quantitative reference
Reference flow(s)
Biogenic carbon content
  • Carbon content (biogenic): 1.0 kg
  • Carbon content (biogenic) - packaging: 1.0 kg
Time representativeness
Data set valid until 2028
Technological representativeness
Technology description including background system Main material contents of CEM I 52,5 N bulk cement: Clinker (including gypsum): 80 to 94 % Minor additional constituents: 0 to 5% Limestone: 6 to 20 % Gypsum: 6 to 7 % Recycled material: 1.34% Main technical characteristics of CEM I 52,5 N bulk cement: 28-day strength: 54.9 Specific density (kg/m³): 1,140 Specific surface (m²/kg): 467 setting time (min): 162 Soundness (mm): 0.8

Indicators of life cycle

IndicatorDirectionUnit Raw material supply
A1
 Transport
A2
 Manufacturing
A3
Use of renewable primary energy (PERE)
Input
  • 161.2
  • 1.211
  • 82.17
Use of renewable primary energy resources used as raw materials (PERM)
Input
  • 0
  • 0
  • 0
Total use of renewable primary energy resource (PERT)
Input
  • 161.2
  • 1.211
  • 82.17
Use of non renewable primary energy (PENRE)
Input
  • 2873
  • 72.39
  • 346.6
Use of non renewable primary energy resources used as raw materials (PENRM)
Input
  • 0
  • 0
  • 0
Total use of non renewable primary energy resource (PENRT)
Input
  • 2873
  • 72.39
  • 346.6
Use of secondary material (SM)
Input
  • 0
  • 0
  • 0
Use of renewable secondary fuels (RSF)
Input
  • 0
  • 0
  • 0
Use of non renewable secondary fuels (NRSF)
Input
  • 0
  • 0
  • 0
Use of net fresh water (FW)
Input
  • 0.7241
  • 0.009455
  • 0.05911
Hazardous waste disposed (HWD)
Output
  • 0.003471
  • 0.0001234
  • 0.000003278
Non hazardous waste dispose (NHWD)
Output
  • 12.81
  • 2.036
  • 0.08347
Radioactive waste disposed (RWD)
Output
  • 0.003404
  • 0.0004568
  • 0.000008358
Components for re-use (CRU)
Output
  • 0
  • 0
  • 0
Materials for recycling (MFR)
Output
  • 0
  • 0
  • 0
Materials for energy recovery (MER)
Output
  • 0
  • 0
  • 0
Exported electrical energy (EEE)
Output
  • 0
  • 0
  • 0
Exported thermal energy (EET)
Output
  • 0
  • 0
  • 0

IndicatorUnit Raw material supply
A1
 Transport
A2
 Manufacturing
A3
Abiotic depletion potential - fossil resources (ADPF)
  • 2.71E+3
  • 68.2
  • 321.5
Abiotic depletion potential - non-fossil resources (ADPE)
  • 0.003582
  • 0.00007523
  • 0.0001265
Acidification potential, Accumulated Exceedance (AP)
  • 3.349
  • 0.05609
  • 0.07963
Depletion potential of the stratospheric ozone layer (ODP)
  • 0.00001035
  • 9.902E-7
  • 0.000001257
Eutrophication potential - freshwater (EP-freshwater)
  • 0.009019
  • 0.00005362
  • 0.00006393
Eutrophication potential - marine (EP-marine)
  • 0.6821
  • 0.01101
  • 0.01284
Eutrophication potential - terrestrial (EP-terrestrial)
  • 8.173
  • 0.1238
  • 0.1426
Global Warming Potential - biogenic (GWP-biogenic)
  • -1.231
  • 0.00338
  • -0.01194
Global Warming Potential - fossil fuels (GWP-fossil)
  • 742.1
  • 4.616
  • 22.22
Global Warming Potential - land use and land use change (GWP-luluc)
  • 0.03853
  • 0.001972
  • 0.001564
Global Warming Potential - total (GWP-total)
  • 740.9
  • 4.621
  • 22.21
Global warming potential except emissions and uptake of biogenic carbon (GWP-IOBC/GHG)
No records found.
No records found.
No records found.
Photochemical Ozone Creation Potential (POCP)
  • 1.932
  • 0.03468
  • 0.04153
Water (user) deprivation potential (WDP)
  • 27.54
  • 0.3388
  • 1.909

IndicatorUnit Raw material supply
A1
 Transport
A2
 Manufacturing
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.
Potential Comparative Toxic Unit for ecosystems (ETP-fw) 2
  • 6.69E+3
  • 49.87
  • 136.2
Potential Comparative Toxic Unit for humans - cancer effects (HTP-c) 2
  • 9.385E-8
  • 1.488E-9
  • 5.657E-9
Potential Comparative Toxic Unit for humans - non-cancer effects (HTP-nc) 2
  • 0.000002076
  • 4.691E-8
  • 1.623E-7
Potential Human exposure efficiency relative to U235 (IRP) 1
  • 2.748
  • 0.2935
  • 0.01978
Potential Soil quality index (SQP) 2
  • 627.9
  • 31.62
  • 30.99
Potential incidence of disease due to PM emissions (PM) 2
  • 0.00002239
  • 2.219E-7
  • 3.18E-7