Full Recycling of Asphalt Concrete with Waste Cooking Oil as Rejuvenator and LDPE from Urban Waste as Binder Modifier

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. Therefore, they decided to also include in the asphalt mixtures low density polyethylene (LDPE) from urban waste as a low-cost polymer to improve that weak point and verify if this technique was feasible and with potential as a pavement material. A laboratory plan was conceived to evaluate the mechanical performance of two rejuvenated ACs with WCO and LDPE. Stiffness, water sensitivity, resistance to rutting and fatigue cracking were evaluated. The results showed that, despite some empirical parameters usually indicated in current specifications not being met, the performance of the studied asphalt mixtures was adequate and, thus, there are good expectations about the future use of these solutions in real pavements, particularly for low and intermediate traffic levels. Based on a global analysis of the performance observed, the main conclusion was that full recycling of AC with WCO and LDPE is feasible, and the score obtained was higher than that of a conventional AC used for comparison.

Download Full-text

Rutting and Fatigue Cracking Resistance of Waste Cooking Oil (WCO) Modified Trinidad Asphaltic Materials

New Ideas Concerning Science and Technology Vol. 4 ◽

10.9734/bpi/nicst/v4/6835d ◽

2021 ◽

pp. 12-24

Author(s):

Rean Maharaj ◽

Vitra Ramjattan-Harry ◽

Nazim Mohamed

Keyword(s):

Fatigue Cracking ◽

Waste Cooking Oil ◽

Cracking Resistance ◽

Cooking Oil ◽

Asphaltic Materials

Download Full-text

K+ trapped kaolinite (Kaol/K+) as low cost and eco-friendly basic heterogeneous catalyst in the transesterification of commercial waste cooking oil into biodiesel

Energy Conversion and Management ◽

10.1016/j.enconman.2018.09.083 ◽

2018 ◽

Vol 177 ◽

pp. 468-476 ◽

Cited By ~ 32

Author(s):

Mostafa R. Abukhadra ◽

Mohamed Adel Sayed

Keyword(s):

Heterogeneous Catalyst ◽

Low Cost ◽

Waste Cooking Oil ◽

Cooking Oil

Download Full-text

Performance and Durability of Porous Asphalt Mixtures Manufactured Exclusively with Electric Steel Slags

Materials ◽

10.3390/ma12203306 ◽

2019 ◽

Vol 12 (20) ◽

pp. 3306 ◽

Cited By ~ 11

Author(s):

Marta Skaf ◽

Emiliano Pasquini ◽

Víctor Revilla-Cuesta ◽

Vanesa Ortega-López

Keyword(s):

Mechanical Performance ◽

Asphalt Mixture ◽

Asphalt Mixtures ◽

Electric Steelmaking ◽

Porous Asphalt ◽

Bituminous Mixtures ◽

Abrasion Loss ◽

Water Sensitivity ◽

Electric Arc Furnace Slag ◽

Furnace Slag

Electric arc furnace slag (EAFS) and ladle furnace slag (LFS) are by-products of the electric steelmaking sector with suitable properties for use in bituminous mixtures as both coarse and fine aggregates, respectively. In this research, the production of a porous asphalt mixture with an aggregate skeleton consisting exclusively of electric steelmaking slags (using neither natural aggregates nor fillers) is explored. The test program examines the asphalt mixtures in terms of their mechanical performance (abrasion loss and indirect tensile strength), durability (cold abrasion loss, aging, and long-term behavior), water sensitivity, skid and rutting resistance, and permeability. The results of the slag-mixes are compared with a standard mix, manufactured with siliceous aggregates and cement as filler. The porous mixes manufactured with the slags provided similar results to the conventional standard mixtures. Some issues were noted in relation to compaction difficulties and the higher void contents of the slag mixtures, which reduced their resistance to raveling. Other features linked to permeability and skid resistance were largely improved, suggesting that these mixtures are especially suitable for permeable pavements in rainy regions. In conclusion, a porous asphalt mixture was produced with 100% slag aggregates that met current standards for long-lasting and environmentally friendly mixtures.

Download Full-text

Laboratory investigation on the properties of asphalt concrete containing reclaimed asphalt pavement and waste cooking oil as recycling agent

International Journal of Pavement Engineering ◽

10.1080/10298436.2019.1626387 ◽

2019 ◽

pp. 1-11 ◽

Cited By ~ 2

Author(s):

Hasan Taherkhani ◽

Farid Noorian

Keyword(s):

Laboratory Investigation ◽

Asphalt Concrete ◽

Asphalt Pavement ◽

Waste Cooking Oil ◽

Reclaimed Asphalt Pavement ◽

Reclaimed Asphalt ◽

Cooking Oil ◽

Recycling Agent

Download Full-text

Effect of blending biodiesel produced from waste cooking oil on the properties of residual fuel oil: energy saving and the economic cost

RSC Advances ◽

10.1039/d1ra05450c ◽

2021 ◽

Vol 11 (52) ◽

pp. 33017-33026

Author(s):

Mahmoud Abd El-Aziz Mohamed ◽

Mostafa A. A. Mahmoud ◽

H. A. El Nagy

Keyword(s):

Energy Saving ◽

Low Cost ◽

Economic Cost ◽

Waste Cooking Oil ◽

Fuel Oil ◽

Cooking Oil ◽

Residual Fuel Oil ◽

Wide Range

The mazout properties were improved using ecofriendly ways because of its wide range of applications, abundance and low cost.

Download Full-text

Tinjauan Terhadap Durabilitas Campuran Asphalt Concrete Wearing Course Menggunakan Aspal Tua Dengan Berbagai Bahan Peremaja

Jurnal Sains Teknologi & Lingkungan ◽

10.29303/jstl.v6i2.141 ◽

2020 ◽

Vol 6 (2) ◽

pp. 132

Author(s):

Ratna Yuniarti ◽

Desi Widianty ◽

Rohani Rohani ◽

Hasyim Hasyim

Keyword(s):

Epoxy Resin ◽

Asphalt Concrete ◽

Water Immersion ◽

Asphalt Mixture ◽

Waste Cooking Oil ◽

Engine Oil ◽

Environment Impact ◽

Cooking Oil ◽

Waste Engine Oil ◽

Aged Asphalt

Asphalt concrete wearing course is laid on the top of road pavement so that directly exposed to ultra violet light and other environment impact. The higher temperature at the pavement surface and exposure to atmospheric oxygen accelerated aging cause asphalt to stiffen and become brittle. This aging result decrease the binding of asphalt and aggregate leads various damage of pavement. The aged asphalt rejuvenated and recycled with rejuvenating agent has been developed to reduce the use of virgin material for road maintenance. This article aims to review durability of asphalt concrete wearing course using waste cooking oil, epoxy resin, kerosene and waste engine oil as asphalt rejuvenators. Aging asphalt was prepared by heating in an oven at 85 oC for 120 hours (long term oven aging). Durability was assessed from the value of Marshall immersion which represent the resistance of asphalt mixture at water immersion. Relation between Marshall immersion and voids in mix (VIM), voids in the mineral aggregate (VMA), voids filled with bitumen (VFB) and density are also evaluated. From the analysis, it can be concluded that the use of waste cooking oil, epoxy resin, kerosene and waste engine oil as asphalt rejuvenators increase the durability of asphalt mixture containing the aged asphalt.

Download Full-text

Viability of Using High Amounts of Steel Slag Aggregates to Improve the Circularity and Performance of Asphalt Mixtures

Applied Sciences ◽

10.3390/app12010490 ◽

2022 ◽

Vol 12 (1) ◽

pp. 490

Author(s):

Caroline Moura ◽

Lucas Nascimento ◽

Carlos Loureiro ◽

Mafalda Rodrigues ◽

Joel Oliveira ◽

...

Keyword(s):

Circular Economy ◽

Mechanical Performance ◽

Permanent Deformation ◽

Steel Slag ◽

Cost Effective ◽

Asphalt Mixtures ◽

Raw Material ◽

Water Sensitivity ◽

Natural Aggregates ◽

And Performance

Steel slag is a byproduct generated as waste during the steelmaking process and can be considered a cost-effective and environmentally acceptable alternative to replace natural aggregates. Using steel slag aggregates (SSA) to produce asphalt mixtures promotes sustainability and circular economy principles by using an industrial byproduct as a raw material. Thus, this work mainly aims to design more sustainable asphalt mixtures with high amounts of SSA that fit the circular economy expectations. This work developed two asphalt mixtures with SSA for surface (AC 14 surf) and binder/base (AC 20 bin/base) courses. Initially, the excellent wearing and polishing resistance of SSA and their good affinity with bitumen demonstrated the potential of this byproduct to be used in asphalt mixtures. Then, when analyzing the influence of using two different SSA incorporation rates (50% and a percentage close to 100%) in both asphalt mixtures, it was concluded that the use of SSA should be limited to 75% to avoid excessive air void contents and durability problems. The importance of considering the different particle densities of SSA and natural aggregates was highlighted during the mix design by defining a relationship between an effective and equivalent binder content. Finally, the mechanical performance of AC 14 and AC 20 with 75% SSA incorporation was compared to identical conventional mixtures produced with natural granite aggregates. The results obtained showed that the asphalt mixtures with 75% SSA have some workability problems due to the rough and porous surface of SSA. However, they present an excellent water sensitivity and permanent deformation resistance, surpassing the performance of the conventional asphalt mixtures.

Download Full-text

Mandatory Recycling of Waste Cooking Oil from Residential and Commercial Sectors in Taiwan

Resources ◽

10.3390/resources8010038 ◽

2019 ◽

Vol 8 (1) ◽

pp. 38 ◽

Cited By ~ 11

Author(s):

Wen-Tien Tsai

Keyword(s):

Low Cost ◽

Waste Cooking Oil ◽

Fuel Oil ◽

Feed Additive ◽

Biodiesel Fuel ◽

Cooking Oil ◽

Renewable Feedstock ◽

On Line ◽

Residential And Commercial Sectors

Waste cooking oil (WCO) has been considered a low-cost and renewable feedstock for the production of biodiesel and biobased products if it can be economically and efficiently collected and recycled. The objective of this case study is to review the scientific background of WCO recycling in the literature in connection with the regulatory and promotional measures in Taiwan under the authorization of a legal waste management system. Furthermore, the updated information about the on-line reporting WCO amounts in Taiwan is also analyzed to illustrate its significant increase in the recycling status of WCO officially designated as one of the mandatory recyclable wastes since 2015. Finally, an overview of available utilization of WCO as biodiesel, fuel oil, and non-fuel related uses is briefly addressed in this paper. It shows that the collected amounts of WCO from residential and commercial sectors in Taiwan significantly increased from 1599 tonnes in 2015 to 12,591 tonnes, reflecting on the WCO recycling regulation effective since 2015. Practically, the most important option for this urban mining is to reuse WCO as an energy source for the productions of biodiesel and auxiliary fuel. Other non-fuel related uses include the production of soaps/detergents, C-18 fatty acids, and lubricants. However, the reuse of WCO as a feed additive should be banned to prevent it from re-entering the food chain.

Download Full-text