A superceding data set exists.
| Tags | Dieser Datensatz ist Bestandteil der ÖKOBAUDAT. |
Process information
| Key Data Set Information | |||
| Location | DE | ||
| Geographical representativeness description | The data set represents the country specific situation in Germany, focusing on the main technologies, the region specific characteristics and / or import statistics. | ||
| Reference year | 2021 | ||
| Name |
| ||
| Use advice for data set | This dataset refers to the production of 1 kg mastic asphalt screed. The bulk density is 2400 kg/m³. Thermal conductivity 0.9 W/mK, the compressive strength depends on the specific construction. The dataset can be used approximately for the estimation of bulk densities of 2200 - 2600 kg. Cold bitumen can not be estimated with this data set. The data set represents a cradle to gate inventory. It can be used to characterise the supply chain situation of the respective commodity in a representative manner. Combination with individual unit processes using this commodity enables the generation of user-specific (product) LCAs. | ||
| Technical purpose of product or process | Mastic asphalt screed is used as a leveling and base layer in the floor structure. Characteristics: fast readiness for covering (after a few hours), high internal damping (sound insulation), waterproof (against rising damp). Mastic asphalt is theoretically materially reusable (recycling). | ||
| Classification number | 1.5.02 | ||
| Classification |
Class name
:
Hierarchy level
| ||
| General comment on data set | This data set has been modeled according to the European Standard EN 15804+A2 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle. | ||
| Uncertainty margins | 20 | ||
| Description | Product system depicted except for a few missing processes / flows. Technological, temporal and geographic representativeness partly given. | ||
| Copyright | Yes | ||
| Owner of data set | |||
| Quantitative reference | |||
| Reference flow(s) |
| ||
| Biogenic carbon content |
| ||
| Time representativeness | |||
| Data set valid until | 2022 | ||
| Time representativeness description | Annual average | ||
| Technological representativeness | |||
| Technology description including background system | For the production of mastic asphalt screed, rock (grit, sand, rock flour) is mixed with bitumen and heated to 220 - 250 ° C. The use of bitumen, minerals and thermal energy have a roughly equal, relevant impact on the life cycle assessment (in terms of GWP). The thermal energy for maintaining the temperature during delivery to the construction site was neglected. In the disposal phase, a mechanical dismantling (asphalt cutter) is accounted for in module C1, taking into account both the consumption of chisle and diesel consumption. It is assumed that the dismantled asphalt will reach the end of waste status immediately after the dismantling. This means that loads for re-use (heating and mixing) are shown in module D. The transport in module C2 to the asphalt mixing plant takes place with a truck (50km). Module D assumes a material loss of 3%. The mixing and heating is also balanced in module D. There will be a credit for the net amount of material (amount recovered minus processing losses) for the substitution of an asphalt track bed. | ||
Modelling and validation
| Subtype | generic dataset | ||||||||
| Data sources, treatment and representativeness | |||||||||
| Data source(s) used for this data set | |||||||||
| Completeness | |||||||||
| Validation | |||||||||
| |||||||||
| Compliance Declarations | |||||||||
| Compliance |
Compliance system name
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
|
Methodological compliance
|
Review compliance
|
Documentation compliance
|
Quality compliance
|
Administrative information
| Data entry by | |
| Time stamp (last saved) | 2021-04-28T21:02:42+01:00 |
| Data set format(s) | |
| Data entry by | |
| Publication and ownership | |
| UUID | 40ef1e7b-920d-4fe4-a8ec-3a540ef93c65 |
| Data set version | 20.21.060 |
| Preceding Data set version | |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | The license conditions as stated on https://www.oekobaudat.de/ apply. |
Environmental indicators
Indicators of life cycle