Project
Performance evaluation of new materials by accelerated pavement testing; Part 1: High modulus bituminous mixtures (VSS1996/035)
Funding origin:
Switzerland
STRIA Roadmaps:
Vehicle design and manufacturing (VDM)
Transport mode:
Road
Project website:
Duration:
Start date: 01/04/1996,
End date: 01/12/2001
Status: Finished
Funding details:
Overview
Objectives:
The main objectives of the project are:
- Assessment of the mechanical performances of high modulus bituminous mixtures;
- Short and long term follow up of their behavior under different loadings;
- Setup of the bases for a new standard (mix design, use, pavement design).
Further objectives of the projects are the following:
- Assessment of the performance and the behavior of pavement with high modulus bituminous subbase layer.
- Assessment of the mechanical behavior and of the rutting susceptibility at a wide range of temperatures and under different loadings with a full-scale accelerated loading facility.
- Development of bases for mixture design, quality control and laying of such high performance materials.
- Propositions for the development of a standard dedicated to these high performance materials, as well as recommendations for the design of new and reinforced pavement with high modulus bituminous mixtures in subbase layer.
Methodology:
Laboratory testing were used to assess the mechanical behaviour of materials at high modulus, in particular with regards to rutting behaviour. The full-scale tests have proved to be particularly useful both to validate the results of modelling calculations and to investigate the behaviour in long term resistance to rutting. The report also provided the elements necessary for the standardisation of asphalt high modulus, both as regards to their wording and their use in standards for sizing or strengthening of asphalt pavements.
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