A more recent version of this data set exists in the database.
Process information
| Key Data Set Information | |
| Location | DK |
| Geographical representativeness description | Denmark |
| Reference year | 2020 |
| Name |
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| Use advice for data set | The system boundary of the EPD follows the modular structure in line with EN 15804. This section describes the modules which are contained within the scope of this study. As the scope of the assessment is up to the point at which the lightweight clay aggregate is manufactured modules A1- A4 have been considered in this LCA |
| Technical purpose of product or process | The EPD describes results for production of lightweight expanded clay aggregate, labelled Leca® letklinker, Leca® 10-20, from the factory in Hinge, Denmark. Lightweight expanded clay aggregate is a granular ceramic material made from natural clay (see process description below). The main characteristic of expanded clay is low density combined with high strength. Leca® letklinker is used in lightweight blocks and slabs, insulation fill, water treatment, lightweight fillings and geotechnical fills for thermal and sound insulation purposes. Thus Leca® letklinker is typically hidden in buildings or cast into concrete. The density of Leca® 10-20 is 0.245 tonnes per m³. The thermal conductivity is 0.095 W/mK. Further information or explanatory material may be obtained by contacting Leca Danmark A/S. The water content of the Leca® letklinker is 0% when the Leca® letklinker is produced at Leca Danmark A/S in Hinge. The storage conditions can change the water content of the Leca® letklinker up to 25%. Different waste are recovered in the production process both as fuels as clay additives. See additional Tech info. Leca® 10-20 is produced by using nearby clay and transported by using a conveyer belt to the factory. Negligible amounts of packaging material is used for raw materials and auxiliaries received at Leca Danmark A/S so the potential environmental impacts from packaging is not included. Furthermore the final product Leca® letklinker is sold in bulk, so no packaging is used. |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | Data quality: Specific data for the product composition are provided by the manufacturer. They represent the production of the declared product and were collected for EPD development in the year of study. Background data is based on registered EPDs according to EN 15804, Ostfold Research databases, ecoinvent and other LCA databases. The data quality of the raw materials in A1 is presented in the table below. Allocation: The allocation is made in accordance with the provisions of EN 15804. Incoming energy and water and waste production in-house is allocated equally among all products through mass allocation. Effects of primary production of recycled materials is allocated to the main product in which the material was used. The recycling process and transportation of the material is allocated to this analysis. Cut-off criteria: All major raw materials and all the essential energy is included. The production processes for raw materials and energy flows with very small amounts (less than 1%) are not included. These cut-off criteria do not apply for hazardous materials and substances. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Time representativeness | |
| Data set valid until | 2025 |
| Time representativeness description | "15.06.2020" - "15.06.2025" |
| Technological representativeness | |
| Technology description including background system | TECHNICAL DATA PARAMETER - TEST METHOD VALUE UNIT GRADING² ------------------------------------------------------------------------------------- Loose bulk density - EN 1097-3 0,67 ton/m³ ... 0-2 0,28 ton/m³ ... 2-4 0,29 ton/m³ ... 4-10 0,24 ton/m³ ... 10-20 ------------------------------------------------------------------------------------- Particle density - EN 1097-6 Annex C & E 1,210 kg/m³ ... 0-2 ..500 kg/m³ ... 2-4 ..560 kg/m³ ... 4-10 ..400 kg/m³ ... 10-20 ------------------------------------------------------------------------------------- Compressibility and confined compressive strength - EN 13055-1 Annex A ..N/A³ MPa ... 0-2 ..N/A³ MPa ... 2-4 1.06 MPa ... 4-10 0.75 MPa ... 10-20 ------------------------------------------------------------------------------------- Thermal conductivity - EN 12667 N/A(4) W/mK... 0-2 0,095 W/mK ... 2-4 0,095 W/mK ... 4-10 0,095 W/mK ... 10-20 ------------------------------------------------------------------------------------- Reaction to fire - A1 All gradings -------------------------------------------------------------------- ² The grading is tested according to EN 933-1 ³ Compressibility and confined compressive strength are not determined for gradings 0-2 and 2-4 (4) Thermal conductivity are not determined for grading 0-2 |
Modelling and validation
| Subtype | specific dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Validation | |||||
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| Compliance Declarations | |||||
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
Administrative information
| Data entry by | |
| Time stamp (last saved) | 2021-12-07T18:59:03 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | 06f4050b-cb0c-4920-978f-9d588f8ce12c |
| Date of last revision | 2020-12-22T15:46:09.1781833Z |
| Data set version | 00.12.000 |
| Registration number | NEPD-2249-1030 |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
Environmental indicators
Indicators of life cycle