Characteristics of asphalt modified by waste engine oil / polyphosphoric acid: Conventional, high-temperature rheological, and mechanism properties

2021 ◽  
pp. 129844
Author(s):  
Ziming Liu ◽  
Song Li ◽  
Yongdan Wang
Keyword(s):  
High Temperature ◽  
Polyphosphoric Acid ◽  
Engine Oil ◽  
Waste Engine Oil

scholarly journals Physical properties of bitumen containing diatomite and waste engine oil

2019 ◽  
Vol 15 (4) ◽  
pp. 528-531
Author(s):  
Norhidayah Abdul Hassan ◽  
Nur Azni Ruzi ◽  
Nurul Athma Mohd Shukry ◽  
Ramadhansyah Putra Jaya ◽  
Mohd Rosli Hainin ◽  
...  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Softening Point ◽  
Road Construction ◽  
Engine Oil ◽  
Modified Bitumen ◽  
Waste Engine Oil ◽  
Unmodified Sample

The addition of modifier, either to replace bitumen or as an additive, could potentially improve the performance of conventional bitumen used in road construction. This study characterizes the physical properties of bitumen 80/100 penetration grade modified with diatomite powder and waste engine oil (WEO). Different percentages of WEO i.e. 1%, 2%, and 3%, were added with 1% diatomite to the bitumen. The conventional and modified bitumen samples were tested for penetration, softening point, viscosity, and loss on heating. Results showed that the increase of WEO content, particularly at 3% in the modified bitumen, has softened the bitumen with lower softening point and higher loss on heating than the unmodified sample. In contrast, the diatomite powder has shown potential in reinforcing the bitumen structure at high temperature based on higher viscosity obtained at 165°C compared to conventional bitumen.

High temperature property and modification mechanism of asphalt containing waste engine oil bottom

2020 ◽  
Vol 261 ◽  
pp. 119977
Author(s):  
Wentong Wang ◽  
Meng Jia ◽  
Wei Jiang ◽  
Baowen Lou ◽  
Wenxiu Jiao ◽  
...  
Keyword(s):  
High Temperature ◽  
Engine Oil ◽  
Temperature Property ◽  
Waste Engine Oil ◽  
High Temperature Property

scholarly journals Evaluation of High-Temperature and Low-Temperature Performances of Lignin–Waste Engine Oil Modified Asphalt Binder and Its Mixture

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 52
Author(s):  
Xue Xue ◽  
Junfeng Gao ◽  
Jiaqing Wang ◽  
Yujing Chen
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Engine Oil ◽  
Bending Beam Rheometer ◽  
Modified Asphalt ◽  
Waste Engine Oil ◽  
Modified Asphalt Binder ◽  
Maximum Tensile Strain

This research aims to explore the high-temperature and low-temperature performances of lignin–waste engine oil-modified asphalt binder and its mixture. For this research, the lignin with two contents (4%, 6%) and waste engine oil with two contents (3%, 5%) were adopted to modify the control asphalt binder (PG 58-28). The high-temperature rheological properties of the lignin–waste engine oil-modified asphalt binder were investigated by the viscosity obtained by the Brookfield viscometer and the temperature sweep test by the dynamic shear rheometer. The low-temperature rheological property of the lignin–waste engine oil-modified asphalt binder was evaluated by the stiffness and m-value at two different temperatures (−18 °C, −12 °C) obtained by the bending beam rheometer. The high-temperature and the low-temperature performances of the lignin–waste engine oil-modified asphalt mixture were explored by the rutting test and low-temperature bending beam test. The results displayed that the rotational viscosity and rutting factor improved with the addition of lignin and decreased with the incorporation of waste engine oil. Adding the lignin into the control asphalt binder enhanced the elastic component while adding the waste engine oil lowered the elastic component of the asphalt binder. The stiffness of asphalt binder LO60 could not meet the requirement in the specification, but the waste engine oil made it reach the requirement based on the bending beam rheometer test. The waste engine oil could enhance the low-temperature performance. The dynamic stabilities of LO40- and LO60-modified asphalt mixture increased by about 9.05% and 17.41%, compared to the control mixture, respectively. The maximum tensile strain of LO45 and LO65 increased by 16.39% and 25.28% compared to that of LO40 and LO60, respectively. The high- and low-temperature performances of the lignin–waste engine oil-modified asphalt LO65 was higher than that of the control asphalt. The dynamic stability had a good linear relationship with viscosity, the rutting factor of the unaged at 58 °C, and the rutting factor of the aged at 58 °C, while the maximum tensile strain had a good linear relationship with m-value at −18 °C. This research provides a theoretical basis for the further applications of lignin–waste engine oil-modified asphalt.

Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 145-153 ◽  
Author(s):  
Chengua Yu ◽  
Feng Wang ◽  
Shiyu Fu ◽  
Lucian Lucia
Keyword(s):  
Contact Angle ◽  
Freeze Drying ◽  
Engine Oil ◽  
High Porosity ◽  
Water Mixture ◽  
Waste Engine Oil ◽  
Hydrophobically Modified ◽  
Static Contact ◽  
Oil Water ◽  
Hydrophobic Material

A very low-density oil-absorbing hydrophobic material was fabricated from cellulose nanofiber aerogels–coated silane substances. Nanocellulose aerogels (NCA) superabsorbents were prepared by freeze drying cellulose nanofibril dispersions at 0.2%, 0.5%, 0.8%, 1.0%, and 1.5% w/w. The NCA were hydrophobically modified with methyltrimethoxysilane. The surface morphology and wettability were characterized by scanning electron microscopy and static contact angle. The aerogels displayed an ultralow density (2.0–16.7 mg·cm-3), high porosity (99.9%–98.9%), and superhydrophobicity as evidenced by the contact angle of ~150° that enabled the aerogels to effectively absorb oil from an oil/water mixture. The absorption capacities of hydrophobic nanocellulose aerogels for waste engine oil and olive oil could be up to 140 g·g-1 and 179.1 g·g-1, respectively.

Investigation on the mechanism and performance of asphalt and its mixture regenerated by waste engine oil

2021 ◽  
Vol 313 ◽  
pp. 125411
Author(s):  
Anqi Chen ◽  
Ziang Hu ◽  
Mingliang Li ◽  
Tao Bai ◽  
Guangjian Xie ◽  
...  
Keyword(s):  
Engine Oil ◽  
Waste Engine Oil ◽  
And Performance

scholarly journals Rheology of Asphalt Binder Modified with 5W30 Viscosity Grade Waste Engine Oil

2018 ◽  
Vol 8 (7) ◽  
pp. 1194 ◽  
Author(s):  
Touqeer Shoukat ◽  
Pyeong Jun Yoo
Keyword(s):  
Asphalt Binder ◽  
Thermal Cracking ◽  
Engine Oil ◽  
Test Results ◽  
Colloidal Systems ◽  
Oxidative Aging ◽  
Waste Engine Oil ◽  
Performance Grade ◽  
Oil Fraction ◽  
Rotational Viscosity

The pavement structure tends to shrink under low temperature conditions and cracks will appear upon crossing threshold binder stiffness. Decreasing the binder viscosity at such low temperatures, by introducing additional oil fraction (aromatics and saturates) in asphalt colloidal systems, may result in improved resistance to thermal cracking. A single multi-grade engine oil (5W30) was used in this study to analyze the rheological properties imparted to binders. Rotational Viscosity (RV) test revealed that after Rolling Thin Film Oven (RTFO) aging, fresh oil and waste oil have a similar effect on decreasing the viscosity of binder and construction temperatures, reducing them by 5~8 °C. Fourier Transform Infrared Spectroscopy (FTIR) test results showed an abrupt increase of carbonyl concertation when fresh engine oil was used for rejuvenation while waste engine oil was less susceptible to oxidative aging. Dynamic analysis of modified binders proved that engine oil has better thermal cracking resistance but relaxation ability of binders and rutting resistance was impaired. Filtered waste engine oil resulted in a 35% decrement in the stiffness of binder compared to virgin asphalt after short term aging but upper Performance Grade (PG) was compromised by 1~3 °C with 2.5% oil inclusion. Unfiltered waste engine oil proved to have the least overall performance compared to fresh and filtered waste engine oil.

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