A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improving porous asphalt mixes by incorporation of additives
Porous asphalt (PA) mixtures have shown a huge range of benefits such as noise reduction, better skid resistance and mitigation of hydroplaning effect. However, due to high voids content, this mixture is prone to ravelling and clogging and therefore its service life is limited. Strong interlock between bitumen and aggregates is an important requirement to keep the aggregate structure intact and thus ravelling in check. Some additives have been widely used in order to enhance the mechanical properties of conventional dense-graded asphalt mixtures (DGAM). Incorporation of additives can improve the stability and cohesion of the porous asphalt mix. In this paper, the suitability of different type of aramid fibers in PA mixtures is analysed with the purpose to improve the durability while maintaining the proper functionality requirements. In this study, volumetric analysis was carried out to assess the effect of five different types of fibers on the functional performance of the porous asphalt mixtures. In addition, dry and wet Cantabro tests were carried out to evaluate the performance of porous asphalt concrete with aramid fiber. Binder drain down tests were also performed in order to assess the potential of fibers to be used as stabilizer additives.
Improving porous asphalt mixes by incorporation of additives
Porous asphalt (PA) mixtures have shown a huge range of benefits such as noise reduction, better skid resistance and mitigation of hydroplaning effect. However, due to high voids content, this mixture is prone to ravelling and clogging and therefore its service life is limited. Strong interlock between bitumen and aggregates is an important requirement to keep the aggregate structure intact and thus ravelling in check. Some additives have been widely used in order to enhance the mechanical properties of conventional dense-graded asphalt mixtures (DGAM). Incorporation of additives can improve the stability and cohesion of the porous asphalt mix. In this paper, the suitability of different type of aramid fibers in PA mixtures is analysed with the purpose to improve the durability while maintaining the proper functionality requirements. In this study, volumetric analysis was carried out to assess the effect of five different types of fibers on the functional performance of the porous asphalt mixtures. In addition, dry and wet Cantabro tests were carried out to evaluate the performance of porous asphalt concrete with aramid fiber. Binder drain down tests were also performed in order to assess the potential of fibers to be used as stabilizer additives.
Improving porous asphalt mixes by incorporation of additives
Gupta, Anik (author) / Rodriguez-Hernandez, Jorge (author) / Slebi-Acevedo, Carlos J. (author) / Castro-Fresno, Daniel (author)
2020-05-28
Conference paper
Electronic Resource
English
DDC:
621
FATIGUE BEHAVIOUR OF POROUS ASPHALT MIXES
| British Library Conference Proceedings | 1999
Performance evaluation of rubberised asphalt mixes containing WMA additives
| Taylor & Francis Verlag | 2018
Performance evaluation of rubberised asphalt mixes containing WMA additives
| Online Contents | 2016