Process information
| Key Data Set Information | |
| Location | EG |
| Geographical representativeness description | The data set represents production in the El Sokhna plant of Lafarge Egypt in Egypt |
| Reference year | 2024 |
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| Use advice for data set | This document refers to the production of Sulphate resisting cement in the plant of El Sokhna of Lafarge Egypt to be used as a binder in the manufacture of concrete and mortar. Type of EPD: cradle-to-factory gate The system boundaries include the extraction of raw materials through to the finished product at the factory gate. The product stage includes: Module A1: Extraction and processing of the raw materials Module A2: Transport of the raw materials to the factory gate and internal transport Module A3: Manufacture of final Product The construction stage, the use stage and the disposal stages are not taken into account in the life cycle assessment for the final product. |
| Technical purpose of product or process | Sulphate resisting cement is used as a binder in the manufacture of concrete and mortar. |
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| General comment on data set | Sulphate resisting cement is a CEM I 42,5 N SR5 cement which is produced and monitored in accordance with EN 197-1 (ES 4756-1). This cement is a hydraulically hardening binder for the production of concrete and mortar. It consists of a mixture of finely ground, non-metallic, inorganic components. After adding water to the cement, a suspension (cement paste) is formed, which solidifies and hardens both in air and under water due to the onset of a hydration reaction and remains permanently solid. The composition of the product corresponds to the specifications of EN 197-1 (ES 4756-1). |
| Copyright | Yes |
| Owner of data set | |
| Content declaration | |
| Quantitative reference | |
| Reference flow(s) | |
| Biogenic carbon content | |
| Time representativeness | |
| Data set valid until | 2029 |
| Time representativeness description | Annual average; Validity from 21/03/2024 to 20/03/2029 |
| Technological representativeness | |
| Technology description including background system | Sulphate resisting cement is manufactured in the El Sokhna plant. Production of Portland cement clinker Limestone, marl, clay or their natural mixture, are required for the production of Portland cement clinker. These starting materials are mined in quarries, pre-crushed and transported to the nearby cement works. There they are homogenized into an intermediate product, with additional natural or secondary corrective substances being added to fine-tune the chemical composition. In the subsequent heating process, the Portland cement clinker is produced from the intermediate product. The firing process takes place in a rotary kiln, where the material is thermally converted at around 1450 °C and then rapidly cooled. The finished clinker is stored in silos. Cement Production To produce the final cement product, the Portland cement clinker is ground into a fine powder. A sulfate carrier is added to control the setting behavior. |
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Modelling and validation
Administrative information
Environmental indicators