Enhancing sustainability in pavement Engineering: A-state-of-the-art review of cement asphalt emulsion mixtures

Lu, Dong; Jiang, Xi; Tan, Zhifei; Yin, B.B.; Leng, Zhen; Zhong, Jing

doi:10.1016/j.clema.2023.100204

Cited by 18 publications

(2 citation statements)

References 119 publications

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“…The polymer modification of bitumen has been the subject of several review papers. The interactions between organic-inorganic composites were extensively reviewed by [26], together with their impact on the functionality of cement asphalt emulsion mixtures, while [27] thoroughly examined the wet and dry procedures used to remove different forms of waste plastic from asphalt surfaces. Some of the review papers concentrated on the impact of mixing conditions and the consequent modified bitumen properties, whereas others concentrated on elastomers in the road sector [28].…”

Section: Introductionmentioning

confidence: 99%

The Use of Waste Polymers in Asphalt Mixtures: Bibliometric Analysis and Systematic Review

Jwaida,

Dulaimi,

Mydin

et al. 2023

J. Compos. Sci.

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Asphalt is widely employed in road construction due to its durability and ability to withstand heavy traffic. However, the disposal of waste polymers has emerged as a significant environmental concern. Recently, researchers have used polymer waste to modify asphalt pavements as a new approach. This approach aims to improve pavement performance and address the environmental concerns of polymer waste. Researchers have demonstrated that incorporating polymeric waste into asphalt mixtures can lead to performance improvements in asphalt pavements, particularly in mitigating common distresses including permanent deformation and thermal and fatigue cracking. The current comprehensive review aims to summarize the recent knowledge on the usage of waste polymers in asphalt mixtures, encompassing their impact on performance properties and mixture design. The review also addresses different types of waste polymers, their potential benefits, challenges, and future research directions. By analyzing various studies, this review offers insights into the feasibility, effectiveness, and limitations of incorporating waste polymers into asphalt mixtures. Ultimately, this contributes to the advancement of sustainable and environmentally friendly road construction practices.

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Section: Introductionmentioning

confidence: 99%

The Use of Waste Polymers in Asphalt Mixtures: Bibliometric Analysis and Systematic Review

Jwaida,

Dulaimi,

Mydin

et al. 2023

J. Compos. Sci.

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“…However, due to the non-renewable nature of natural mineral aggregate resources, there is a shortage of natural mineral aggregate in many areas [16]. With the research and exploration of road materials by many researchers, it has been found that using recycled aggregate to replace natural mineral aggregate is one of the most effective ways to achieve the sustainable development of asphalt pavement [17,18]. For waste tire rubber, a large number of application practices showed that rubber powder-modified asphalt can improve the high and low-temperature performance of pavement, reduce pavement cracks, and extend the service life of pavement [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Innovative Use of Waste PET-Derived Additive to Enhance Application Potentials of Recycled Concrete Aggregates in Asphalt Rubber

Chen,

Peng,

Yang

et al. 2023

Polymers

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Polyethylene terephthalate (PET) drinking bottles, rubber tires, and concrete are the very common municipal solid wastes, which are usually disposed of at landfills and stockpiles and cause continuous damage to the environment. Some studies have indicated that waste PET can be chemically converted into an additive for improving the overall properties of asphalt pavement incorporating natural aggregates, especially the moisture-induced damage resistance. However, it is not clear whether this PET additive still works for asphalt rubber containing recycled concrete aggregates (RCA). To well reveal this issue, this study first adopted a similar way to chemically recycle waste PET into the additive for modifying crumb rubber modified asphalt (CRMA) binder and then mixed the binder with the 13 mm maximum aggregate stone matrix asphalt containing 100% coarse RCA for preparing the mixtures. After a series of physicochemical characterizations of the PET additive, the moisture resistance, rutting resistance, low-temperature cracking resistance, and fatigue resistance of the mixture were systematically evaluated. The results showed that the PET additive is capable of improving the resistance to moisture and high-temperature deformation of asphalt rubber and helps greatly reduce the moisture-induced damage to the interfacial bonding layer. To be more detailed, the residual Marshall stability (RMS) value of RCA-CRMAM/1PET after 72 h of immersion is higher than 85% by contrast to that of RCA-CRMAM (77.1%), while the tensile strength ratio (TSR) value of RCA-CRMAM/1PET shows more than 80% compared to that of 65.2%. In addition, only 1% PET additive can enhance the high-temperature resistance of asphalt rubber containing RCA to rut and allow it to maintain higher resistance to rut after moisture-induced damage. 1% PET additive can help improve the bearing capacity of RCA-CRMAM under a low-temperature environment and delay its fatigue life at small stresses. Generally, with the successful introduction of PET additives to asphalt rubber containing RCA, more durable and sustainable highway pavement can be produced and applied in practice to alleviate the negative impacts caused by waste PET, waste tire rubber, and waste concrete.

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Fire-Retarding Asphalt Pavement for Urban Road Tunnels: A State-of-the-Art Review and Beyond

Jiang,

Zhu,

Yan

et al. 2024

Fire Technol

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With the rapid urbanization and development of metropolises, urban road tunnels have been constructed at an increasing rate, significantly alleviating urban traffic pressure, and improving urban resilience. Fire hazards have become a major threat to modern road tunnels due to the growing popularity of electric vehicles and high-density transportation of goods, particularly flammable materials. Asphalt pavements, as an essential component of road tunnels, may release harmful effluences and smoke under high temperatures, exacerbating the fire and adding risk to life safety. It is hence critical to investigate fire-retarding asphalt materials and their potential use in urban road tunnels pavements. This paper provides a comprehensive review of fire-retarding asphalt pavements for urban road tunnel pavements. The review covers tunnel fire generation mechanisms, evaluation methods, flame retardants for asphalt pavements, and recent developments in flame retardant technologies. By investigating these aspects, this paper aims to better understand the flammability of asphalt mixtures and asphalt pavements in urban road tunnels, promote the research of flame-retardant technology, and ultimately reduce the damage and loss caused by asphalt road tunnel fire accidents. Additionally, this study identifies the limitations of current research and provides an outlook for future research to contribute to the resilience of urban road tunnel structures and the longer service life of asphalt pavement in semi-closed road tunnels.

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Enhancing sustainability in pavement Engineering: A-state-of-the-art review of cement asphalt emulsion mixtures

Cited by 18 publications

References 119 publications

The Use of Waste Polymers in Asphalt Mixtures: Bibliometric Analysis and Systematic Review

The Use of Waste Polymers in Asphalt Mixtures: Bibliometric Analysis and Systematic Review

Innovative Use of Waste PET-Derived Additive to Enhance Application Potentials of Recycled Concrete Aggregates in Asphalt Rubber

Fire-Retarding Asphalt Pavement for Urban Road Tunnels: A State-of-the-Art Review and Beyond

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