AsPV
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Representative determination of performance-relevant asphalt properties as a basis for new contract conditions
AsPV is funded by:
Federal Ministry of Transport, Building and Urban Affairs (BMVBS)
FE 07.253/2011/ERB
Project duration:
December 2012 to August 2014
Project partners:
- Karlsruhe Institute of Technology, Institute of Road and Railway Engineering
(project management) - Technical University of Munich, Chair of Building Materials Science and Materials Testing
- Hansa-Nord-Labor GmbH, Pinneberg
- Society for Road Construction Technology Dresden mbH
Content and goals
New dimensioning methods for highly loaded road pavements are based on material parameters optimized during asphalt design. Experience has shown that deviations in composition but also in the state of compaction can occur between the material of the initial test and the asphalt actually produced, paved and compacted. These deviations can have considerable effects on the calculated and actual service life.
In order to determine realistic differences between the dimensioning-relevant material parameters of asphalts produced and compacted in the laboratory or in the mixing plant during the initial test and the asphalt layers actually produced in the laboratory, asphalts from 21 test sections are being investigated.
Within the scope of the joint project, the SG Construction and Maintenance of Traffic Routes is responsible for the following tasks in the project:
- Concept for recording the composite action by means of static shear testing.
- Derivation of categories for the service properties stiffness, fatigue resistance, cold crack resistance, deformation resistance and skid resistance
- Dimensioning of traffic route pavements using standardized material categories
- Review of existing safety concepts for the mathematical dimensioning of asphalt pavements