Structural Performance of Waste Plastic Bottles Modified Asphalt: A Review

Shah, Abdul Muqeet; Lodhi, Rida Hameed; Javed, Muhammad Faisal; Jasiński, Michał; Jasińska, Elżbieta; Gono, Miroslava

doi:10.3390/resources12010010

Cited by 10 publications

(3 citation statements)

References 27 publications

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“…These findings offer insights into optimizing plastic-modified asphalt mixes for improved performance. These test results are consistent with previous research findings [35,39,40].…”

Section: Bulk Specific Gravity (Gmb)supporting

confidence: 93%

Plastic roads: asphalt mix design and performance

Shah,

Yousaf,

Khalid

et al. 2024

Discov Appl Sci

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Plastic materials are extensively utilized in various aspects of daily life. However, the substantial amount of plastic waste generated can cause significant global environmental issues without efficient waste management practices. To address this problem, the utilization of waste plastics in high-value applications such as highway construction through hot mix asphalt (HMA) has been deemed ideal. Polyethylene terephthalate (PET), low-density polyethylene (LDPE), and high-density polyethylene (HDPE) are the three most prevalent types of plastic waste found in municipal solid waste. The impact of plastic-type and content on the mechanical, volumetric, and durability properties of hot mixed asphalt (HMA) was investigated by utilizing varying plastic contents of PET, LDPE, and HDPE. Tests were conducted in accordance with ASTM standards on twelve HMA mixtures made with an optimal binder content (OBC) of 4.3%, and plastic contents of 3%, 6%, 9%, and 12% by weight of OBC. Marshall stability and flow tests were conducted to ascertain the optimal plastic content for each tested mixture. The findings indicated that the stability and flow values improved as the plastic content was raised. 9% LDPE mix gave a maximum Marshal stability value of 12 kN. Additionally, as the plastic content increased, the values for air voids and voids filled with asphalt decreased in all 12 mixes tested. This research aligns with the United Nations 2030 sustainable development goals (SDGs), including SDGs 9, 11, 12, 13, 14, and 15, and presents a viable method for implementing the 3Rs approach towards sustainable plastic waste management.

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“…These findings offer insights into optimizing plastic-modified asphalt mixes for improved performance. These test results are consistent with previous research findings [35,39,40].…”

Section: Bulk Specific Gravity (Gmb)supporting

confidence: 93%

Plastic roads: asphalt mix design and performance

Shah,

Yousaf,

Khalid

et al. 2024

Discov Appl Sci

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“…To further study plastic waste, PET bottles were used in combination with bitumen. The test showed a steady increase in Marshall stability with the turning point being at around 12% of PET bottles added [32]. The results are consistent with the previous study on PE carry bags, thus proving that plastic waste is a reliable way to replace virgin material in asphalt pavements.…”

Section: The Performance Of Asphalt and Unbound Layers Containing Was...supporting

confidence: 89%

Potential of Using Waste Materials in Flexible Pavement Structures Identified by Optimization Design Approach

Jelušič,

Gücek,

Žlender

et al. 2023

Sustainability

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This paper presents the design of geosynthetic reinforced flexible pavements and their modification by incorporating waste materials into bonded and unbonded layers of the pavement structure. The optimal design of flexible pavements was achieved by minimizing the construction cost of the pavement. The incorporation of waste materials into the pavement structure affects the material properties. Therefore, along with the traffic load, the effects of the material properties of the asphalt concrete, base layer, sub-base layer, and subgrade were analyzed in terms of pavement structure costs and CO2 emissions of materials used in pavement construction. In addition, a comparison was made between pavements with and without geosynthetic reinforcement in terms of design, optimum construction cost, and CO2 emissions. The use of geosynthetics is even more effective in pavement structures that contain waste materials in an unbound layer, both in terms of cost and CO2 emissions. The minimum value of the California Bearing Ratio of the subgrade was determined at which the use of geosynthetic reinforcement for pavement structure with and without the inclusion of waste materials is economically and sustainably justified. The use of geosynthetics could result in a 15% reduction in pavement structure cost and a 9% reduction in CO2 emissions due to the reduced thickness of unbound layers. In addition, reducing the CBR of the unbound layer from 100% to 30% due to the inclusion of waste materials implies a cost increase of up to 13%. While the present study is based on an empirical pavement design method in which pavement thickness is limited by the pavement thickness index, the same minimum thicknesses are obtained in the optimization process regardless of whether the objective function is the minimum construction cost or minimum CO2 emissions.

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“…Waste plastics, such as polyethylene and polypropylene, are abundantly available and present a valuable opportunity for recycling and reuse [ 11 ]. Utilizing WPA in asphalt mixtures not only diverts plastic waste from landfills but also offers the potential to improve pavement performance through enhanced mechanical properties and resistance to deformation [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Sustainable Asphalt Concrete Materials Utilizing Waste Plastic Aggregate, Epoxy Resin, and Magnesium-Based Additive

Lee

2023

Polymers

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This research addresses the urgent need for sustainable and durable asphalt mixtures by quantitatively investigating the effects of incorporating waste plastic aggregate (WPA) and magnesium-based additives. This study explores WPA content levels of 3%, 5%, and 7% wt of aggregate in combination with a fixed 3% wt epoxy resin content to the asphalt binder, supplemented with the 1.5% wt magnesium-based additive. The novelty of this research lies in its comprehensive analysis of various performance parameters, including deformation strength, indirect tensile strength (ITS), rut depth, and dynamic stability, to assess the impact of WPA, epoxy resin, and the magnesium-based additive on asphalt mixture properties. The results demonstrate significant improvements in key performance aspects with increasing WPA content. The WPA mixtures exhibit enhanced deformation strength, with values of 4.01, 3.7, and 3.32 MPa for 3, 5, and 7% wt WPA content, respectively, compared to the control mixture. Furthermore, the inclusion of WPA and epoxy resin, along with the magnesium-based additive, contributes to improved adhesion, cohesion, and resistance to stripping damage. Notably, the 7% wt WPA mixture showcases exceptional performance, characterized by a final rut depth of 2.66 mm and a dynamic stability of 7519 passes per millimeter, highlighting its superior rutting resistance and load-bearing capacity. This study also reveals the influence of WPA content on ITS and stiffness properties, with the 5% wt WPA mixture achieving an optimal balance between strength and stiffness. Overall, this research highlights the potential of incorporating WPA, epoxy resin, and magnesium-based additives in asphalt mixtures to enhance their performance and durability. By utilizing plastic waste materials and optimizing their combination with epoxy reinforcement, along with the innovative use of magnesium-based additive, the findings contribute to the development of sustainable infrastructure materials and pave the way for further advancements in the field.

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Structural Performance of Waste Plastic Bottles Modified Asphalt: A Review

Cited by 10 publications

References 27 publications

Plastic roads: asphalt mix design and performance

Plastic roads: asphalt mix design and performance

Potential of Using Waste Materials in Flexible Pavement Structures Identified by Optimization Design Approach

Feasibility of Sustainable Asphalt Concrete Materials Utilizing Waste Plastic Aggregate, Epoxy Resin, and Magnesium-Based Additive

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