Investigating the Effect of anti Stripping Agents (ASAs) on Fatigue and Rutting Properties of Stone Matrix Asphalt (SMA) Mixtures Modified by Ground Tire Rubber (GTR) and Waste Polyethylene Terephthalate (PET)

EasyChair Preprint 3112

Abstract

The current study assessed the influence of Anti Stripping Agents (ASA), Ground Tire Rubber (GTR) and waste polyethylene terephthalate (PET) on performance behavior of binder and Stone Matrix Asphalt (SMA) mixtures. Through this paper the 85/100 penetration grade bitumen was utilized as original bitumen. Also, three liquid ASA’s (ASA (A), ASA (B), ASA (C)) were used as mixture modifier. For this purpose, softening point, penetration, rotational viscosity, Dynamic Shear Rheometer, Multi Stress Creep Recovery (MSCR) and Linear Amplitude Sweep (LAS) tests were implemented to investigate the rheological properties of modified bitumen. For evaluating the behavior of modified mixtures several tests such as; Resilient Modulus, Tensile Strength, dynamic creep, wheel track and four point beam fatigue tests were implemented. Based on MSCR test results, utilization of mentioned polymers enhanced the elasticity of bitumens and therefore the permanent deformation resistance of binders increases. Also by addition of PET percentage, the rutting resistance improves. Results indicated that utilization of ASAs, PET and Crumb Rubber (CR) enhance the Resilient Modulus (Mr), Indirect Tensile Strength (ITS), rutting resistance, fatigue life and Fracture Energy (FE) of asphalt mixtures.  Also based on results, modification of binder by PET/CR with ratio of 50%/50% and ASA (B) have the highest fatigue life which indicates that this mixture have highest resistance against fatigue cracking.

Keyphrases: Anti Stripping Agents (ASA), Fatigue, Ground tire rubber (GTR), Rutting, Stone Matrix Asphalt (SMA), waste polyethylene terephthalate (PET)

@booklet{EasyChair:3112,
  author    = {Alireza Ameli and Javad Maher and Amir Mosavi and Narjes Nabipour and Rezvan Babagoli and Navid Norouzi},
  title     = {Investigating the Effect of anti Stripping Agents (ASAs) on Fatigue and Rutting Properties of Stone Matrix Asphalt (SMA) Mixtures Modified by Ground Tire Rubber (GTR) and Waste Polyethylene Terephthalate (PET)},
  howpublished = {EasyChair Preprint 3112},
  year      = {EasyChair, 2020}}