Abstract
Literature has shown positive results to using waste plastic as an alternative source for PMBs where considerable interest in using waste High-density polyethylene (HDPE) has been highlighted on improving rutting resistance. Most importantly, using a waste polymer for an application has benefits (i.e., maintenance, environmental) by improving the durability and quality of our roads and by avoiding polymers from landfill or incineration. This research uses the Multiple Stress Creep Recovery (MSCR) test to assess the performance of a binder modified with waste HDPE polymer. The outcomes of this research highlights that a HDPE content of 2–4% shows a substantial increase in rutting resistance and an improvement in elastic recovery. The elastic recovery reported does improve from previous research results however it does underperform in comparison with the Styrene butadiene styrene (SBS) polymer counterpart. Furthermore, it can be indicated by the aging index that a HDPE content of greater than 4% can be detrimental to the aging effects leading to fatigue cracking. It is recommended that a combination of both waste HDPE and an elastomeric polymer such as crumb rubber is to be used in future test work to improve the elastic recovery and address the effects of fatigue cracking.
Highlights
Referred to as permanent deformation is a common occurrence in the North West of Australia where pavement is subjected to higher trafficable loading from an increase usage of road trains under hot climatic conditions [2]
It has been proven to meet the requirements for optimal performance in modern pavement construction and coatings; it appears to be a practical, logical, and economical approach compared to other approaches [3,5]
The aim of this research is to investigate the effect of High-density polyethylene (HDPE) waste polymer to enhance the rutting performance of a bituminous binder
Summary
Rutting is one of the main issue in pavement engineering [1]. Referred to as permanent deformation is a common occurrence in the North West of Australia where pavement is subjected to higher trafficable loading from an increase usage of road trains under hot climatic conditions [2]. The main cause for rutting is apparent when a binder becomes sensitive to stress at high temperatures due to the softness of the binder [3]. Polymer Modified Binder’s (PMBs) are a popular way to enhance the binder’s performance against both fatigue and rutting. The application of polymer-modified bitumen enhances the pavement’s service life length, especially in severe conditions such as parking areas tolerating heavy traffic loads, deformed road base, and stress-relieving interlayer. It has been proven to meet the requirements for optimal performance in modern pavement construction and coatings; it appears to be a practical, logical, and economical approach compared to other approaches [3,5]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
