| Key Data Set Information | |
| Location | CN |
| Reference year | 2004 |
| Name |
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| Use advice for data set | Users of this dataset should consider the inclusion of external resource input and pollutant emissions in their assessment. The dataset is based on a functional unit of 1kg of 42.5 grade Portland cement assessing the in-plant production process and its surrounding environment. Remember to account for the preprocessing of raw materials, raw meal grinding, calcination, clinker milling, and cement homogenization processes. The methodological applicability of using industrial by-products such as slag and fly ash in the input mix should be reflected accordingly. |
| Technical purpose of product or process | This dataset describes the production of ordinary Portland cement with a strength class of 42.5MPa, using a dry process that incorporates mixed solid wastes, specifically slag and fly ash. Slag and fly ash are used as substitutes for clay in the cement production process. The described cement is applicable for general construction purposes including the construction of buildings, bridges, roads, and other infrastructure projects where high strength and durability are required. |
| Classification |
Class name
:
Hierarchy level
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| General comment on data set | Typical cement production process. Slag and fly ash replace clay for cement production. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Technological representativeness | |
| Mathematical model | |
| Model description | The study used 1kg of 42.5 grade Portland cement as the functional unit for evaluation. The scope of evaluation is defined as the in-plant production process of cement products and its surrounding environment. Among them, the in-plant production process refers to the entire production process in which raw materials undergo pretreatment, raw meal grinding, calcination, clinker mill, cement homogenization and other processes and finally become cement products. The surrounding environment of the cement production process refers to the input of external resources and energy and the emission of pollutants. |
| LCI method and allocation | |||||
| Type of data set | Unit process, black box | ||||
| Deviation from LCI method principle / explanations | None | ||||
| Deviation from modelling constants / explanations | None | ||||
| Data sources, treatment and representativeness | |||||
| Deviation from data cut-off and completeness principles / explanations | None | ||||
| Deviation from data selection and combination principles / explanations | None | ||||
| Deviation from data treatment and extrapolations principles / explanations | None | ||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Completeness of product model | No statement | ||||
| Validation | |||||
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| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2024-03-19T21:18:09+08:00 |
| Publication and ownership | |
| UUID | ecd82560-93f4-4dfa-a11a-89372efe82ea |
| Date of last revision | 2024-04-20T14:40:33.972934+08:00 |
| Data set version | 00.01.005 |
| Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=ecd82560-93f4-4dfa-a11a-89372efe82ea&version=01.00.000&stock=TianGong |
| Owner of data set | |
| Copyright | No |
| License type | Free of charge for all users and uses |
Inputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Product flow | Materials production / Other mineralic materials | 1073.7 kg | 1073.7 kg | ||||||
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| Product flow | Materials production / Other mineralic materials | 51.1 kg | 51.1 kg | ||||||
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| Product flow | Materials production / Metals and semimetals | 28.5 kg | 28.5 kg | ||||||
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| Waste flow | Wastes | 98.0 kg | 98.0 kg | ||||||
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| Waste flow | Wastes / Post consumer waste | 137.6 kg | 137.6 kg | ||||||
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| Product flow | Energy carriers and technologies / Hard coal based fuels | 100.957 kg | 100.957 kg | ||||||
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| Product flow | Energy carriers and technologies / Electricity | 347.76 MJ | 347.76 MJ | ||||||
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Outputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.255 kg | 0.255 kg | ||||||
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| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.3501 kg | 0.3501 kg | ||||||
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| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.419 kg | 1.419 kg | ||||||
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| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 807.3 kg | 807.3 kg | ||||||
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| Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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