The use of vegetable oil as a rejuvenator for asphalt mixtures

The use of vegetable oil as a rejuvenator for asphalt mixtures. This paper presents a laboratory study to demonstrate the effectiveness of using vegetable oils as rejuvenating agents for aged asphalt mixtures. The work focused on proposing a laboratory aging protocol whereby loose asphalt base course mixtures oven aged at 150 degrees C for a ...

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Asphalt concrete - Wikipedia

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century.

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The aging behavior of reclaimed asphalt mixture with ...

The main chemical composition of waste cooking oil is an important functional component in recovering the properties of the aged binder. Hence, the chemical composition in two types of waste cooking vegetable oils (corn oil and soybean oil) were measured by the gas chromatography-mass spectrometry (GCMS) test, as illustrated in Table 1.One commercial asphalt binder rejuvenator was …

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Mechanical performance of asphalt rejuvenated with various ...

Tung oil is a kind of vegetable oil that has been investigated to be a potential rejuvenator. Yan et al. investigated the physical, rheological properties, and functional groups of reclaimed bitumen rejuvenated by tung oil. The experimental results showed that suitable contents of tung oil can enhance the quality of rejuvenated bitumen.

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US8696806B2 - Asphalt materials containing bio-oil and ...

US8696806B2 US12/772,945 US77294510A US8696806B2 US 8696806 B2 US8696806 B2 US 8696806B2 US 77294510 A US77294510 A US 77294510A US 8696806 B2 US8696806 B2 US 8696806B2 Authority US United States Prior art keywords asphalt oil bio binder weight Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

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THE USE OF VEGETABLE OIL AS A REJUVENATOR FOR …

Figure 1: Effect of thermal aging time on stiffness of asphalt mixtures (red line), and the effect of vegetable oil as a rejuvenator on 10hr oven aged asphalt mixtures (green line). 2.1. Indirect Tensile Fatigue Testing (ITFT) Following initial stiffness testing the specimens were ITFT tested using a Nottingham Asphalt Tester (NAT). Figure 2

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US20100034586A1 - Asphalt rejuvenation - Google Patents

A rejuvenating agent suitable for the rejuvenation of asphalt is disclosed, wherein said rejuvenating agent comprises one or more plant derived oils. The rejuvenating agent can also be used to alter the properties of a (unaged) asphalt mix as well as for the rejuvenation of an aged asphalt.

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Experimental Evaluation of the Potential of the Sap of the ...

42 The rejuvenation of cold recycled asphalt with vegetable oils as rejuvenating agents (a 43 commercial rejuvenating vegetable oil, a grape seed oil, a flaxseed oil and a waste cooking 44 oil) was studied in laboratory and in field tests [1]. The recycled asphalts showed to be 45 susceptible to action of water and curing time.

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IMPACTS OF REJUVENATOR ON PERFORMANCE AND …

Rejuvenating agents can improve the engineering properties of asphalt mixtures containing high contents of RAP. Generally, a rejuvenator is an asphalt additive used for softening the stiffness of the oxidized asphalt mixtures. The rejuvenators typically consist of a high proportion of maltenes which balance the chemical composition of aged

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Effect of Waste Cooking Oil Viscosity on Basic and ...

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.

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Investigation of rheological and chemical properties ...

On the other hand, vegetable oil is a kind of environment-friendly, degradable and volatilisable materials. Vegetable oil is mainly composed of fatty acid ester oil, and the addition of vegetable oil in aged asphalt could increase the content of light oil . Recently, researchers have employed waste cooking oil to rejuvenate aged asphalt.

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A Review on Bitumen Rejuvenation: Mechanisms, Materials ...

This review aims to explore the state of the knowledge and the state-of-the-art regarding bitumen rejuvenation. In particular, attention was paid to clear things up about the rejuvenator mechanism of action. Frequently, the terms rejuvenator and flux oil, or oil (i.e., softening agent) are used as if they were synonymous. According to our knowledge, these two terms refer to substances ...

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Effect of rejuvenating agents on stone matrix asphalt ...

The effects of using waste engine oil (WEO) and waste cooking oil (WCO) as rejuvenators on some engineering properties of asphalt concrete containing reclaimed asphalt pavement (RAP) have been ...

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Research on the development and regeneration performance ...

In order to realize the comprehensive utilization of waste oils and improve performance of aged asphalt, a new type of asphalt rejuvenator was developed using waste engine oil (WEO) and waste cooking oil (WCO) as the basis and the other two additives as auxiliary materials. The n an orthogonal test was designed with four factors and three levels to determine the optimum amount of …

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asphalt milling machine on philippines

Asphalt Milling - Astec. Asphalt milling, also known as cold planing, is the removal or milling up of an asphalt surface to provide an improved surface for repaving or resurfacing. The amount of asphalt removed depends on the condition of the original surface and the intended use.

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REJUVENATORS: Bring Life Back to Aging Asphalt

Waste Vegetable Oil Waste Vegetable Grease Brown Grease Delta S* ... Effect of Rejuvenator on Performance Properties of HMA Mixtures with High RAP and RAS Contents. NCAT Report 12-05. ... Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios [Web page].

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Materials | Free Full-Text | Effect of Rejuvenators on the ...

Based on the effect of rejuvenators on aged asphalt, it seems that the use of rejuvenators can improve the workability of reclaimed asphalt mixtures . It was reported by Ahmad et al. that the vegetable oil-based rejuvenator improved the workability of reclaimed asphalt mixtures due to the reduction in viscosity of aged asphalt .

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Effectiveness of Vegetable Oils as Rejuvenators for Aged ...

Furthermore, the rejuvenator can lower the viscosity and stiffness of the aged asphalt binder with a larger amount of vegetable oil. Overall, the vegetable oil content (6% to 8%) in the rejuvenator is proposed for recovering the aged asphalt binder in consideration of the rutting resistance under high temperatures.

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Effect of Waste Edible Animal Oil on Physical Properties ...

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 (PAV).

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asphalt recycling rejuvenator oil

Jan 30, 2019· And, the rejuvenating effect of bio-oil on aged asphalt was different with different oil sources . Though there is a large amount of research on the recycling of asphalt binder and bio-rejuvenator, there have been limited studies on the bio-rejuvenator generated from sawdust.

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Rheology of Asphalt Binder Combined with High ...

Both samples were transparent, with the 11 day oil slightly darker. Little prior work on the age of the WCO has been reported. Zhang et al. examined a rejuvenated binder with vegetable oil aged for 2, 4, 6, 8, 10, 12, 14, and 16 h. According to Zhang, the performance of the vegetable oil as a rejuvenator deteriorated with time of its use.

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USE OF REJUVENATORS FOR PRODUCTION OF SUSTAINABLE …

Rejuvenators, softening agents, waste vegetable oil, linear amplitude sweep test. INTRODUCTION Reclaimed Asphalt Pavement (RAP) binder properties depend on the composition of the original binder and aging during service. If the aggregates are of good quality, then the main obstacle for increasing the RAP dosage, is the aged RAP binder.

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Evaluation of Sunflower Oil as a Rejuvenator and Its ...

The objectives of this study were to evaluate the effects of asphalt rejuvenators on asphalt binder, to select a suitable healing agent for asphaltic materials, and to develop a synthesis procedure for the production of microencapsulation of asphalt rejuvenators. ... it was concluded that the use of sunflower oil as a rejuvenator was effective ...

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Calcium Alginate Capsules Encapsulating Rejuvenator as ...

48 the crack and repair the damage. The healing agents used for asphalt healing includes 49 vegetable oil, waste cooking oil and bitumen rejuvenator [8-10]. 50 There are various rejuvenator encapsulation methods, such as: 51 1. Melamine-formaldehyde(MMF) modified capsules, Su [11] used MMF modified by 52 methanol to encapsulate rejuvenator.

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Special Issue on Innovation on Paving Materials

waste cooking vegetable oils (corn oil and soybean oil) and compared the rejuvenating effects of vegetable oils with those of a commercial asphalt rejuvenator at different contents. They found that vegetable oil can successfully restore the properties of aged asphalt binder by reducing its viscosity and stiffness. At 6% content, vegetable oil ...

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Effect of Healing Agents on Crack Healing of Asphalt and ...

This study investigated the effect of seven healing agents on crack healing ability of long-term aged asphalt and its mortar. Different healing agents including sunflower oil, aromatic oil, bitumen emulsion, and maltene-based emulsions were used.

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Effect of Aging and Rejuvenation on the Rheological ...

This study evaluates the effect of different types of recycling agents (vegetable oils, aromatic extract, paraffinic oil, bio-oils and tall oil) in improving the properties of asphalt binder blends with high RAP content using rheological, microscopic and chemical tools.

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Investigation of diffusion of rejuvenator in aged asphalt ...

Fig. 10 shows the effect of asphalt type on the coefficient. Two rejuvenator applications to asphalts are compared and analyzed. The diffusion coefficient in asphalt A11 is larger than that in asphalt A7 whichever research method is employed. And the diffusion coefficient of rejuvenator in asphalt A7 is small, especially the SM researching results.

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Effect of Waste Edible Vegetable Oil on High Temperature ...

Based on the asphalt rejuvenation theory and some related studies, waste cooking oil can be used for asphalt regeneration. The objective of this study is to investigate the high temperature properties of aged asphalt binder with waste edible vegetable oil. The materials used for this study included three sources of asphalt (60-80 grad, 40-60 grad, SBS modified asphalt), three sources of ...

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Hot Mix Asphalt Recycling: Challenges and Benefits ...

After validation of the general concept, a thorough study to determine the performance properties of recycled asphalt pavement was undertaken. Six rejuvenators were used in the study: waste vegetable oil, waste vegetable grease, organic …

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