The mechanical response of dry-process polymer wastes modified asphalt under ageing and moisture damage

Radeef, Hasanain Radhi; Hassan, Norhidayah Abdul; Katman, Herda Yati; Mahmud, Mohd Zul Hanif; Abidin, Ahmad Razin Zainal; Ismail, Che Ros

doi:10.1016/j.cscm.2022.e00913

Cited by 7 publications

(11 citation statements)

References 42 publications

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“…Overall, the outcomes of the ITS tests signify that the asphalt mixtures performed better in dry conditions compared to the modified and control mixtures in wet conditions. The reduced ITS values observed in the wet samples can be primarily attributed to the negative impact of water on the asphalt binder adhesion properties [37].…”

Section: Indirect Tensile Strength (Its)mentioning

confidence: 93%

Performance of Hybrid Asphalt Mixture through the Stability and Tensile Strength

Sani,

Jaya,

Masri

2023

TOCIEJ

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Introduction: The stability and tensile strength of asphalt mixtures play a crucial role in pavement durability, primarily due to the challenges associated with cracking. This study investigates the utilization of a hybrid asphalt mixture comprising hybrid materials: Palm Oil Fuel Ash (POFA), garnet waste and sawdust to enhance the modified asphalt performance. Aims: The objective is to examine the hybrid materials’ influence towards the mechanical properties of the hybrid asphalt mixture, specifically focusing on the Indirect Tensile Strength (ITS) as well as the Marshall stability test. Methods: To achieve this, hybrid materials were finely ground and sieved to 25µm before being incorporated into the mixture. The Marshall mix design procedure was conducted, utilizing hybrid binders at concentrations of 0% (control), 3% 6%, and 9%. The effects of the hybrid asphalt mixture on stability, flow, stiffness, and ITS were assessed at the optimal binder content. Results: The findings indicate that the hybrid asphalt mixture reveals enhanced Marshall stability, stiffness, flow, and ITS values compared to conventional asphalt mixtures. Notably, hybrid asphalt mixtures with 6% binder concentration demonstrate the most significant enhancement in terms of Marshall stability and ITS. Conclusion: This correlation suggests that the incorporation of POFA, garnet waste, and sawdust as hybrid materials in the hybrid asphalt mixture possesses a positive effect on the overall mechanical properties of the pavement. Highlights: • POFA, garnet waste, and sawdust increased the stability of the hybrid asphalt mixture. • POFA, garnet waste, and sawdust increased the tensile strength of the hybrid asphalt mixture. • Hybrid asphalt mixture performs positively towards flow and stiffness.

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Section: Indirect Tensile Strength (Its)mentioning

confidence: 93%

Performance of Hybrid Asphalt Mixture through the Stability and Tensile Strength

Sani,

Jaya,

Masri

2023

TOCIEJ

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“…In the preparation of our composite material, we employed a dry mixing process that entailed heating the aggregates to 170-180 °C [32] for 30-45 min. This elevated temperature caused the plastic materials, including PET and HDPE, to soften without traditional melting, rendering them more pliable and conducive to adhering to the aggregates during mixing.…”

Section: Mixing Processmentioning

confidence: 99%

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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“…Because of the substantial volume of plastic produced and mishandled WPs, along with the paving industryʹs successful track record of reusing waste materials in road construction, utilizing WPs for paving purposes presents itself as a viable alternative solution. Many recent research works have been conducted to evaluate the feasibility of WP addition into hot mixture asphalt (HMA) [7][8][9][10][11]. In this case, WP can be used to modify the asphalt binder [7,8,11], to replace a portion of the aggregates in the mixture [7,9], as a mixture modifier (additive) [7], or a combination of these [7,10].…”

Section: Introductionmentioning

confidence: 99%

“…Many recent research works have been conducted to evaluate the feasibility of WP addition into hot mixture asphalt (HMA) [7][8][9][10][11]. In this case, WP can be used to modify the asphalt binder [7,8,11], to replace a portion of the aggregates in the mixture [7,9], as a mixture modifier (additive) [7], or a combination of these [7,10]. Although promising results have been found, many knowledge gaps remain regarding the optimized use of WPs in HMA.…”

Section: Introductionmentioning

confidence: 99%

Waste Plastic in Asphalt Mixtures via the Dry Method: A Bibliometric Analysis

Bueno,

Teixeira

2024

Sustainability

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Although waste plastic (WP) application as a paving material has drawn increasing attention from scholars, there is a lack of studies that summarize the latest development of WP research. Considering there is no standard procedure to incorporate WPs in asphalt mixtures, it is important to document the major findings from the available literature to identify knowledge gaps to tackle in future research and advance knowledge on this subject. Using a bibliometric analysis method, this study carries out a holistic review of WP articles published from 2003 to 2023, focusing on incorporating WP in asphalt mixtures via the dry method. This study particularly focused on identifying and evaluating individual types of WP mostly used in asphalt mixtures via the dry method and how their most common characteristics (size, shape, and melting point) affect the mixing procedure and the overall mixture’s performance. The analysis highlighted China, the USA, and India as leading countries in WP-related publications. Typically, low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polyethylene terephthalate (PET) were the most utilized WPs in the dry method. Smaller WP particle sizes (<2.36 mm) were considered more suitable in asphalt mixtures. In general, studies employing procedures involving WP melting, typically by introducing WP to pre-heated aggregates at temperatures surpassing its melting point, resulted in improved asphalt mixtures with enhanced resistance to rutting, cracking, and moisture damage. In this context, positive performance outcomes were notably observed in studies using HDPE or LDPE, potentially because of their low melting point. The key knowledge gaps identified were the lack of a consistent procedure applicable across studies, a feasibility assessment for scaling laboratory-based procedures to field applications, and laboratory evaluations utilizing advanced performance tests as suggested in the Balance Mix Design (BMD) approaches.

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The mechanical response of dry-process polymer wastes modified asphalt under ageing and moisture damage

Cited by 7 publications

References 42 publications

Performance of Hybrid Asphalt Mixture through the Stability and Tensile Strength

Performance of Hybrid Asphalt Mixture through the Stability and Tensile Strength

Plastic roads: asphalt mix design and performance

Waste Plastic in Asphalt Mixtures via the Dry Method: A Bibliometric Analysis

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