Plastic waste as strength modifiers in asphalt for a sustainable environment

Badejo, Adedayo A.; Adekunle, Adebola A.; Adekoya, Olusola O.; Ndambuki, Julius M.; Kupolati, Kehinde Williams; Bada, Babatunde Saheed; Omole, David O.

doi:10.1080/20421338.2017.1302681

Cited by 23 publications

(4 citation statements)

References 5 publications

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“…Fatigue or flow is a measure of the flexibility of the mixture to follow the deformation that occurs due to traffic loads without causing cracks and changes in volume [6,10,16]. Table 4 showed that the more plastic levels increase in the AC-WC mixture, the less flexibility of the mix.…”

Section: Flowmentioning

confidence: 99%

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Effects of HDPE Utilization and Addition of Wetfix-Be to Asphalt Pavement in Tropical Climates

Nawir

2022

Civ Eng J

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Plastic Waste (PW) is one of the primary sources of pollution, leading to drainage system blockages, thereby causing floods and road pavement damage. One of the major ways to reduce pollution due to plastic waste and excessive exploitation of natural resources is through the development of HDPE. It is also important to reduce damage to road pavement structures by improving the quality of the asphalt used during construction. Therefore, this research aims to analyze the effects of using HDPE shale, an ecologically friendly material, and the addition of Wetfix-Be to asphalt pavements in tropical climates. The study results showed that 5.75% of the OAC asphalt using plastic waste raises the stability value and meets the specification requirements. Specimens of AC-WC concrete asphalt mixture were also tested by immersing them in fresh and seawater for 0.5, 24, 72, and 96 hours. In conclusion, using HDPE plastic waste and Wetfix-Be keeps the AC-WC concrete asphalt mixture stable. Doi: 10.28991/CEJ-2022-08-08-010 Full Text: PDF

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Section: Flowmentioning

confidence: 99%

“…Asphalt mix stiffness is also known to diminish as moisture content increases, causing more significant damage than in dry conditions. Water can also impair the link between pavement layers, causing its structure to deteriorate significantly [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of HDPE Utilization and Addition of Wetfix-Be to Asphalt Pavement in Tropical Climates

Nawir

2022

Civ Eng J

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“…Khoo (2019) presented a new perspective on the Life Cycle Assessment (LCA) of plastic waste treatment by including waste treatment plant capacities. Badejo et al, (2017) studied the application of waste plastic as a strength modifier in asphalt for pavement. Jassim (2017) investigated the recycling of polyethylene waste to produce plastic cement.…”

Section: Introductionmentioning

confidence: 99%

Influence of Air-dried Soil Types and Compaction on Eco-bricks Performance Under Uniaxial Compressive Loading

2022

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Researchers have considered the potential utilization of waste plastics in concrete and mortar production. However, there is paucity of research on the use of waste plastic as an encapsulate in the manufacture of eco-bricks. This paper assesses the characterization of eco-bricks under uniaxial compressive loading with respect to soil materials and compaction. Three compaction layers and three types of soil materials (laterite, sharp sand, and stone dust) were used to produce 81 specimens of eco-bricks. The study reveals that the compressive strength of eco-bricks made with laterite has a positive linear relationship with the number of compaction layers, but eco-bricks that are made with sharp sand and stone dust as filler material have a negative linear relationship with the number of compaction layers. The compressive strength of laterite-filled eco-bricks for one, two and three layers of compaction was 31.92 N/mm2, 40.91 N/mm2 and 46.79 N/mm2, respectively. In comparison, stone dust has a density of 12.18 N/mm2, N/mm2, and 6.51 N/mm2 and sharp sand have a density of 3.38 N/mm2, 2.42 N/mm2, and 2.17 N/mm2. The study revealed that at a high level of compaction, laterite bottle bricks are suitable for use as masonry units for construction of walls, while sharp sand and stone dust bottle bricks are only suitable for use as masonry units at a low level of compaction. It is advised to choose filler materials and compaction layers carefully while manufacturing bottle bricks because the performance of eco-bricks depends significantly on these parameters.

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“…e FHWA continues to encourage the use of waste tire rubber for asphalt paving for its cost-effectiveness, easy handling, and better fatigue performance [2]. Plastic waste is relatively a new material recently introduced in the asphalt technology [4]. Another innovative material is the bioasphalt that is considered a breakthrough in renewable pavements.…”

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confidence: 99%

Innovative Materials, New Design Methods, and Advanced Characterization Techniques for Sustainable Asphalt Pavements

Al-Khateeb

Haider

Rahman

et al. 2019

Advances in Materials Science and Engineering

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New and innovative materials are continually being researched and developed by asphalt technologists, particularly in the last decade to find the most economical, efficient, and environmentally friendly product to use on roads. Parallel to that, advanced characterization techniques and methodologies are also being developed to characterize materials for best results. Innovative materials include recycled and waste materials (green materials), low-cost and high-performance materials, and materials that reduce energy consumption. Recycled asphalt pavement (RAP) material is considered among the most common materials used in asphalt pavements. e RAP material is a useful alternative to virgin materials because it reduces the need to use virgin aggregate which has limited resources in some areas of the United States and the World [1]. e FHWA continues to encourage the use of waste tire rubber for asphalt paving for its cost-effectiveness, easy handling, and better fatigue performance [2]. Plastic waste is relatively a new material recently introduced in the asphalt technology [4]. Another innovative material is the bioasphalt that is considered a breakthrough in renewable pavements. e bioasphalt is produced from non-petroleum-based renewable resources such as corn, rice, potato starches, and other plants, which are converted into a type of bitumen binder for the asphalt [3]. In this special issue, published papers are dealing with innovative materials, design methods, and characterization techniques that well agree with the main scope and goals of the special issue. e papers are mainly classified into three main categories: (1) new materials and their behavior and performance, (2) the mechanics and performance of composite paving materials, and (3) new design and characterization methods and modeling.A study by W. S. Brito et al. assessed the reuse of fly ash of Bayer process boilers in geopolymer synthesis. X-ray fluorescence (XRF) and scanning electron microscopy (SEM) techniques were used to characterize the raw materials and geopolymers. e study concluded that synthesized geopolymers have great potential for production of geopolymeric materials with greater mechanical compressive strength. C. Kai et al. utilized silica powder in styrenebutadiene-styrene-(SBS-) modified asphalt. e silica powder was collected from the exhaust gases produced by smelting industrial silicon often used as a cement concrete admixture in China. Rheological tests such as viscosity, dynamic shear rheometer (DSR), and bending beam rheometer (BBR) tests were used to study the behavior of the composite-modified asphalt. e results of the study showed that the high-temperature and low-temperature performances were improved by the increase in silica powder content and ratio of filler-asphalt, and by the increase in the silica powder content with an optimum value of 7%, respectively. However, the increase in the ratio of filler-asphalt reduced the low-temperature cracking resistance of the asphalt. A study by M. Irfan et al. investigated the effect...

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Plastic waste as strength modifiers in asphalt for a sustainable environment

Cited by 23 publications

References 5 publications

Effects of HDPE Utilization and Addition of Wetfix-Be to Asphalt Pavement in Tropical Climates

Effects of HDPE Utilization and Addition of Wetfix-Be to Asphalt Pavement in Tropical Climates

Influence of Air-dried Soil Types and Compaction on Eco-bricks Performance Under Uniaxial Compressive Loading

Innovative Materials, New Design Methods, and Advanced Characterization Techniques for Sustainable Asphalt Pavements

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