Mechanical Properties of Bio-Asphalt on Recycled Asphalt Pavement Binder

Sihombing, Atmy Verani Rouly; Subagio, Bambang Sugeng; Hariyadi, Eri Susanto; Yamin, Anwar

doi:10.1007/978-3-030-48679-2_50

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Apart from that, in previous research, processing bio asphalt from coconut shells (BioCS) and BitutechRAP with asphalt binder material pen 60/70 and Aged from the extraction of recycled asphalt pavement (RAP) showed the results that bio asphalt can improve the mechanical performance of asphalt binder aged close to pen. 60/70 as controller [34]. In addition, the use of bioCS as a RA binding rejuvenation agent can be used and research can be continued on a field scale [35].…”

Section: Introductionmentioning

confidence: 99%

Performance Characteristics of Nano Palm Shell Ash (NPSA) in Asphalt Mixture

Fitra Ramdhani,

Bambang Sugeng Subagio,

Harmein Rahman

et al. 2024

ARASET

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One innovation in creating new materials that have superior properties compared to large-sized materials is to use nanotechnology. The uniqueness of nano materials is that the smaller the size of the material, the greater the surface area and performance characteristics of the material in the asphalt mixture. This research develops nano technology in asphalt pavement construction by making nano material from palm shell ash waste. The aim of this research is to determine the effect of adding palm shell ash nano material as a substitute for asphalt in the AC-WC mixture. The research method was carried out by testing the morphological characterization of the palm shell ash nano material using X-Ray Fluorescence (XRF) testing and Scanning Electron Microscope (SEM) testing, then continuing with testing the characteristics of the mixture using the Marshall testing method. The nano material used is palm shell ash material obtained from palm shell burning waste originating from Riau which is then processed into Nano Palm Shell Ash (NPSA) material using a ball mill. The asphalt used is Pen 60/70 asphalt produced by Pertamina. The use of NPSA material in asphalt modification with NPSA variations of 1%, 2% and 3% can improve the performance of marshal characteristics compared to conventional asphalt mixtures. It can be seen that the stability, flow, VFA and MQ values increase with increasing NPSA percentage in asphalt. Meanwhile, the VIM and VMA values decreased along with the increase in the NPSA percentage in asphalt. In addition, increasing the percentage of NPSA in asphalt can reduce the use of optimum asphalt content compared to conventional asphalt mixtures. Utilizing palm shell ash waste is the best alternative for improving the performance of asphalt in mixtures and is environmentally friendly and economical.

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Section: Introductionmentioning

confidence: 99%

Performance Characteristics of Nano Palm Shell Ash (NPSA) in Asphalt Mixture

Fitra Ramdhani,

Bambang Sugeng Subagio,

Harmein Rahman

et al. 2024

ARASET

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“…There are many kinds of materials that can be used as modifiers, and the current research mainly includes the following aspects. Some researchers use biomaterials as modifiers to prepare bio-asphalt [ 6 , 7 , 8 ], such as beans [ 9 ], waste cooking oil [ 10 , 11 ], biochar [ 12 , 13 ], and so on. Forestry resources and animal excreta are liquefied and separated to prepare modifiers.…”

Section: Introductionmentioning

confidence: 99%

Study of the Microscopic Mechanism of Natural Rubber (Cis-1, 4-Polyisoprene, NR)/Polyethylene (PE) Modified Asphalt from the Perspective of Simulation

Chen

et al. 2022

Polymers

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This paper aims to study the interaction mechanism of waste tire/plastic modified asphalt from the microscopic perspective of molecules. Based on BIOVIA Materials Studio, a classic four-component asphalt model consisting of asphaltene (C149H177N3O2S2), resin (C59H85NOS), aromatic (C46H50S), and saturate (C22H46) was constructed. Waste tires are represented by natural rubber (NR), which uses cis-1, 4-polyisoprene as a repeating unit. In contrast, waste plastics are characterized by polyethylene (PE), whose optimum degree of polymerization is determined by the difference in solubility parameters. Then, the above molecular models are changed to a stable equilibrium state through the molecular dynamics process. Finally, the interaction process is analyzed and inferred using the indexes of radial distribution function, diffusion coefficient, and concentration distribution; further, the interaction mechanism is revealed. The results show that the optimal degree of polymerization of PE is 12, so the solubility parameter between PE and NR-modified asphalt is the lowest at 0.14 (J/cm3) 1/2. These models are in agreement with the characteristics of amorphous materials with the structures ordered in the short-range and long-range disordered. For NR-modified asphalt, the saturate moves fastest, and its diffusion coefficient reaches 0.0201, followed by that of the aromatic (0.0039). However, the molecule of NR ranks the slowest in the NR-modified asphalt. After the addition of PE, the diffusion coefficient of resin increased most significantly from 0.0020 to 0.0127. NR, PE, and asphaltene have a particular attraction with the lightweight components, thus changing to a more stable spatial structure. Therefore, using NR and PE-modified asphalt can change the interaction between asphalt molecules to form a more stable system. This method not only reduces the large waste disposal task but also provides a reference for the application of polymer materials in modified asphalt.

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