2015 ZIM - Glass fibers in asphalts
Table of contents
Development and validation of the use of (recycled) glass fibers in asphalts optimizing material characteristics considering the adding of reclaimed asphalt
Subproject: Determination and evaluation of the material characteristics of glass fiber modified asphalt mixes for the calculative pavement design and rutting prediction
Project staff
Contracting authority
Central Innovation Programme for
SMEs - ZIM
Project period
05/2015 - 04/2017
Abstract
Fatigue, stiffness and rutting characteristics have a major influence on the pavement performance. For this reason glass fibers are currently in use to investigate the impact of loose fiber reinforcement on the performance characteristics of asphalt mixtures. Within the project tests are performed to determine the fatigue, stiffness and deformation characteristics of different asphalt mixes. Therefore asphalt base mix AC 22 T S (3 variations), intermediate asphalt course AC 16 B S (9 variations), asphalt concrete (wearing course) AC 8 D S (2 variations) and a stone mastic asphalt SMA 8 S (2 Variations) were chosen to determine the effect of fiber reinforcement on fatigue and rutting performance. The influence of the fiber length as well as the amount of reclaimed asphalt is taken into account. At the end it must be ensured that the glass fiber modified asphalt can be compacted in situ.