Close Go back Collapse all sections
Process Data set: Mastic asphalt screed (en) en de

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 2023
Name
Mastic asphalt screed
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
  • oekobau.dat: 1.5.02 Mineral building products / Asphalt / Mastic asphalt
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)
Material properties of the reference flow
    • gross density: 2400.0 kg/m^3
Time representativeness
Data set valid until 2026
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.

Indicators of life cycle

IndicatorDirectionUnit Production
A1-A3
 Transport
C2
 Disposal
C4
Input
  • 0.1183
  • 0.006516
  • 0.09009
Input
  • 0
  • 0
  • 0
Input
  • 0.1183
  • 0.006516
  • 0.09009
Input
  • 1.83
  • 0.05888
  • 0.5958
Input
  • 3.87
  • 0
  • -3.87
Input
  • 5.7
  • 0.05888
  • -3.274
Input
  • 0
  • 0
  • 0
Input
  • 0
  • 0
  • 0
Input
  • 0
  • 0
  • 0
Input
  • 0.00003134
  • 0.000006087
  • 0.0001363
Output
  • 4.139E-10
  • 2.866E-12
  • 1.473E-10
Output
  • 0.008503
  • 0.000009955
  • 1.195
Output
  • 0.00001195
  • 9.372E-8
  • 0.000008408
Output
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0

IndicatorUnit Production
A1-A3
 Transport
C2
 Disposal
C4
  • 0.1456
  • 0.004597
  • 0.03549
  • 0.00106
  • 0.00002138
  • 0.00009018
  • 0.1444
  • 0.004489
  • 0.03527
  • 0.00007974
  • 0.00008625
  • 0.0001299
  • 2.264E-13
  • 1.416E-15
  • 1.164E-13
  • 0.0002981
  • 0.00001475
  • 0.0001455
  • 0.0002582
  • 0.00001562
  • 0.0002111
  • 0.0008735
  • 0.00008139
  • 0.000499
  • 1.125E-7
  • 1.221E-8
  • 0.00002024
  • 0.00007944
  • 0.000007211
  • 0.00004544
  • 0
  • 0.00003214
  • 0.004557
  • 1.509E-8
  • 7.61E-10
  • 2.304E-9
  • 6.474
  • 0.05888
  • 0.5958