Keywords: Asphalt Recycling, Reclaimed Asphalt Pavement, Rejuvenator, Waste Engine Oil, Waste Vegetable Oil 1. Introduction Due to increased environmental awareness and limited resources, researchers are seeking for new methods and technologies to ensure sustainability, efficiency and less greenhouse gases in asphalt industry.
Oct 06, 2020· The authors previously studied full recycling of RAP rejuvenated with waste cooking oil (WCO). The asphalt concrete (AC) manufactured revealed good mechanical behaviour except for rutting resistance.
Oct 18, 2020· Ziari et al. investigated the rutting resistance of recycled asphalt concrete containing 25, 50 and 75% of RAP and rejuvenated by a constant dose of waste cooking oil and found that the resistance against rutting decreases with adding rejuvenator. However, the reduction of rutting resistance can be compensated by adding nano-clay.
The purpose of this study was to investigate the regeneration effect of waste cooking oil (WCO) on aged asphalt with molecular dynamics (MD) simulation, comparing it with a rejuvenator. Firstly, the molecular models of and aged asphalt were established by blending the four components of asphalt (saturate, aromatic, resin, and asphaltenes). Then, different dosages …
At present, the regeneration agent with mineral oil as the main component is widely used. However, its strong volatility, nonrenewability, and other shortcomings restrict the development of regeneration technology. In this study, waste vegetable oil was used as the main component of the regeneration agent to prepare regenerated aging asphalt. The change in microstructure of …
Using Waste Cooking Oil (WCO) is one of the eco-friendly solutions which contains the similar lighter oil components of asphalt and can be used as …
asphalt, aggregates, waste cooking oil, waste engine oil and reclaimed asphalt pavement (RAP) have been used in this research for making the test samples. PG58-16 asphalt cement produced in Pasargad Oil Co. in Iran was used as virigin asphalt in the mixtures. The required specifications were met by the binder.
Olive oil, cooking oil, waste cooking oil, engine oil, and waste engine oil were added to a 30/40 penetration grade aged asphalt binder at …
The styrene-butadiene-styrene (SBS)-modified asphalt pavement has been in growing demand in the road construction field owing to its workable mechanical property and temperature durability. This paper prepared a penetrative rejuvenator (PR) with waste cooking oil (WCO) and emulsified asphalt, then a …
Some research projects have studied full recycling of reclaimed asphalt pavement (RAP). Several additives have been used to rejuvenate the RAP's aged bitumen. The authors previously studied full recycling of RAP rejuvenated with waste cooking oil (WCO). The asphalt concrete (AC) manufactured revealed good mechanical behaviour except for rutting resistance.
asphalt pavement content. However, the selection of an effective rejuvenator based on a comparative study can lead to using the resources more efficiently. In this study, waste cooking oil and waste engine oil are used to rejuvenate three different
Waste cooking oil (WCO), produced during cooking and frying activities, can be used as a good rejuvenator because it contains lighter oil fractions similar to asphalt. Every year, food markets generate huge quantities of waste cooking oil: China generates 826 million gallons, the
5th Eurasphalt & Eurobitume Congress, 13-15th June 2012, Istanbul A5EE-161 THE USE OF VEGETABLE OIL AS A REJUVENATOR FOR ASPHALT MIXTURES Helen K Bailey1, Salah E Zoorob2 1Gaia Enviro Tech Ltd, Charnwood Science Centre, Leicester, LE7 1GQ, UK 2Department of Built Environment, Coventry University, CV1 5FB, UK ABSTRACT
Waste cooking oil was assumed as rejuvenator as well as one of the recycling agent that possible to improve the aged bitumen properties as similar level as the bitumen. Researchers have proved that using rejuvenator in aged bitumen binder can reach target PG grades when the optimum percentage of rejuvenator is achieved.
These tests were significant to classify the bitumen grade based on penetration ranges. Bailey and Philips (2010) have patented for asphalt rejuvenation using waste vegetable oil. The researcher claimed that the waste vegetable oil have the greatest effect to the penetration and softening point value when added to the heated RAP.
Mar 03, 2017· In this study, two rejuvenators with waste cooking vegetable oils (corn oil and soybean oil) to replace heavy oils and a commercial rejuvenator were used to recover the aged asphalt (extracted from RAP materials) with different …
Apr 18, 2018· The objective of this study was to investigate the properties of rejuvenating aged asphalt binder with WCO-based bioasphalt and waste cooking oil. The materials used for this study included one asphalt, aged asphalt (from asphalt by thin film oven test and pressure aging vessel), waste cooking oil and its bioasphalt with five ...
Sheng, Y, Wang, Y & Zhao, K 2016, The effects of using waste cooking oil as a rejuvenator on the properties of naturally aged asphalt binders. in 8th International Conference on Maintenance and Rehabilitation of Pavements, MAIREPAV 2016.
Apr 18, 2019· The optimal rejuvenation dosage for each type of rejuvenator was identified and mix design for the SMA was optimized for evaluating its physical and mechanical properties. Based on the results, the optimum rejuvenator dosage was identified at 6% for waste cooking oil and waste engine oil, while 2% for shredded plastics.
(2020). Comparative laboratory evaluation of waste cooking oil rejuvenated asphalt concrete mixtures for high contents of reclaimed asphalt pavement. International Journal of Pavement Engineering: Vol. 21, No. 11, pp. 1297-1308.
sustainability Article Full Recycling of Asphalt Concrete with Waste Cooking Oil as Rejuvenator and LDPE from Urban Waste as Binder Modifier Carlos Rodrigues 1, Silvino Capitão 1,2,*, Luís Picado-Santos 2 and Arminda Almeida 3,4 1 Instituto Superior de Engenharia de Coimbra, Instituto Politécnico de Coimbra, Rua Pedro Nunes, 3030-199 Coimbra, Portugal; …
Once the asphalt pavement has been properly milled to the desired sieve size for recycling, Cyclogen oil or emulsion is the only additive required. It is available in various viscosity grades and formulations to optimize the consistency of the recycled asphalt mix: For Hot Recycling, Cyclogen agent is added in one of two grades of oil (L and M ...
Waste cooking oils (WCOs) show promise as a rejuvenator for reclaimed asphalt pavement (RAP) binders. Their use helps to make RAP a renewable resource and to address environmental concerns related to WCO disposal. While studies suggest that RAP for pavement is feasible, RAP will likely be combined with a binder and aggregate incrementally in the …
In order to explore the feasibility of waste edible animal oil used as the asphalt rejuvenator, this study investigated the effect of waste edible animal oil on softening point, penetration, ductility and viscosity of aged asphalt binders. The aged asphalt binders were obtained from the indoor simulating aging processes by using Thin Film Oven Test (TFOT) and Pressure Aging Vessel …
This study examines the merits of esterification of waste cooking oil to reduce its acidic content for use as a rejuvenator for aged asphalt. It further examines how acidic compounds in bitumen increases the moisture susceptibility of bituminous composites made from siliceous stones and bitumen. While some acidic compounds are inherent in bitumen, the recent widespread use of …
Bitumen is very important as a binder material in asphalt concrete. However, the cost of the bitumen is relatively high. For this reason, highway professionals are looking for modifiers to decrease the bitumen content used in the asphalt pavement. In this study, waste frying oil (WFO) is used as a modifier to modify the bitumen.
This is a well-written and carefully structured paper that uses the concept of the new molecular dynamics simulation to analyse the behavior of aged bitumen mixed with waste cooking oil as an alternative rejuvenator. I have a few comments that might be usefully addressed to improve the overall quality of the paper:
Sep 17, 2021· The recyclability of waste cooking oil (WCO) as rejuvenator for aged asphalt mixture improved the serviceability of pavement itself. Currently, the researcher is exploring the new potential of WCO as modifier for binder modification. However, the issue of compatibility properties in the modification of binder with WCO arises since the poor mechanical …
The rejuvenator used in this study was waste cooking oil obtained from residences without cost. The waste cooking oil was prepared by means of a simple filtering process. In this process the filter paper, medium filter speed 12.5 cm diameter (Same filter paper to separate the asphaltenes from maltenes for bitumen binder according to ASTM D4124 ...
Nov 10, 2018· Waste Cooking Oil (WCO), which contains the similar lighter oil components of asphalt, can be used as a good rejuvenator in this regard. Recent studies showed that, WCO has an excellent potential to be used as a good rejuvenator in HMA industry.
Apr 18, 2018· Waste cooking oil (WCO) can be used to rejuvenate aged asphalt and restore its properties. However, the influence of WCO properties on rejuvenating behavior of aged asphalt is still unknown. The objective of this study is to investigate the effect of WCO viscosity on basic and rheological properties of aged asphalt.