Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation on influence of nanoclay addition on rheological performance of asphalt binder
Organo-modified nanoclay has got considerable attention in recent years to improve the performance of asphalt binders. However, various aspects such as rutting performance using Multiple Stress Creep Recovery (MSCR) test, fatigue performance using Linear Amplitude Sweep (LAS) test and ageing resistivity potential using advanced rheological parameter are still unexplored for better rheological characterisation. The present study deals with rutting, ageing resistivity potential and fatigue performance of asphalt binder (AC-10) modified with organo-modified nanoclay (CL-30B). Different percentages (0, 2, 4 and 6% by weight of binder) of CL-30B were mixed with AC-10 using a high-shear mixer. Different rheological studies, such as Brookfield viscosity, Superpave performance grading, time–temperature sweep, MSCR and LAS tests, were conducted on CL-30B-modified asphalt binders. Effects of CL-30B on performance were observed to be predominant in intermediate to high-temperature range as obtained from the master curve. The ageing resistivity of asphalt binder increased with the addition of CL-30B. The Superpave rutting parameter (G*/Sinδ) increased and non-recoverable creep compliance (Jnr) estimated from MSCR decreased with inclusion of CL-30B, indicating a better rutting performance of asphalt binders. The number of cycles to fatigue estimated from the LAS test showed improvement in fatigue performance of asphalt binder with addition of CL-30B. The high-temperature performance grade of CL-30B-modified binder was found to be higher compared to virgin binder. The relationship between Jnr and G*/Sinδ, and recovery (R) and storage modulus (G′) parameters are presented in this paper. In addition, ranking of asphalt binder based on various parameters (i.e. G*/Sinδ, AI, Jnr, R, Nf) is discussed in this paper.
Investigation on influence of nanoclay addition on rheological performance of asphalt binder
Organo-modified nanoclay has got considerable attention in recent years to improve the performance of asphalt binders. However, various aspects such as rutting performance using Multiple Stress Creep Recovery (MSCR) test, fatigue performance using Linear Amplitude Sweep (LAS) test and ageing resistivity potential using advanced rheological parameter are still unexplored for better rheological characterisation. The present study deals with rutting, ageing resistivity potential and fatigue performance of asphalt binder (AC-10) modified with organo-modified nanoclay (CL-30B). Different percentages (0, 2, 4 and 6% by weight of binder) of CL-30B were mixed with AC-10 using a high-shear mixer. Different rheological studies, such as Brookfield viscosity, Superpave performance grading, time–temperature sweep, MSCR and LAS tests, were conducted on CL-30B-modified asphalt binders. Effects of CL-30B on performance were observed to be predominant in intermediate to high-temperature range as obtained from the master curve. The ageing resistivity of asphalt binder increased with the addition of CL-30B. The Superpave rutting parameter (G*/Sinδ) increased and non-recoverable creep compliance (Jnr) estimated from MSCR decreased with inclusion of CL-30B, indicating a better rutting performance of asphalt binders. The number of cycles to fatigue estimated from the LAS test showed improvement in fatigue performance of asphalt binder with addition of CL-30B. The high-temperature performance grade of CL-30B-modified binder was found to be higher compared to virgin binder. The relationship between Jnr and G*/Sinδ, and recovery (R) and storage modulus (G′) parameters are presented in this paper. In addition, ranking of asphalt binder based on various parameters (i.e. G*/Sinδ, AI, Jnr, R, Nf) is discussed in this paper.
Investigation on influence of nanoclay addition on rheological performance of asphalt binder
Ashish, Prabin Kumar (Autor:in) / Singh, Dharamveer (Autor:in) / Bohm, Siva (Autor:in)
Road Materials and Pavement Design ; 18 ; 1007-1026
03.09.2017
20 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Nanoclay for binder modification of asphalt mixtures
| British Library Conference Proceedings | 2009
Recycling of RAP using nanoclay modified asphalt binder
| Springer Verlag | 2021