Academic literature on the topic 'Asphalt pavement sustainability'

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Journal articles on the topic "Asphalt pavement sustainability"

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Kleizienė, Rita, Ovidijus Šernas, Audrius Vaitkus, and Rūta Simanavičienė. "Asphalt Pavement Acoustic Performance Model." Sustainability 11, no. 10 (May 23, 2019): 2938. http://dx.doi.org/10.3390/su11102938.

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Low-noise pavements are used as an effective method of traffic noise mitigation. Low-noise pavements reduce the noise that arises due to interactions between tires and road surfaces (tire/road) via the implementation of three main components: low pavement roughness, negative pavement texture, and a high pavement air-void content. The tire/road noise reduction capabilities of the wearing layer vary depending on the aggregate type, gradation, bitumen and air-void content, and density. Consequently, the demand for an accurate tire/road noise prediction model has arisen from the design of asphalt mixtures. This paper deals with how asphalt mixture components of the wearing layer influence tire/pavement noise reduction and presents a model for tire/road noise level prediction based on the asphalt mixture composition. The paper demonstrates that the noise reduction level of low-noise asphalt pavements is dependent on the composition of the asphalt mixture. Asphalt wearing layer mixture composition parameters were tested in the laboratory from cores taken from 18 road sections, where acoustic properties were measured using a close-proximity (CPX) method. The proposed linear model is based on the bitumen amount, the air-void content of the mixture and aggregate shape and involves materials that comply with the general requirements for high-quality asphalt mixtures. The model allows for the prediction of the tire/road noise level at the asphalt mixture design stage using asphalt mixture components and volumetric properties. The proposed model is the first stage in the building of a complex model with a much wider range of low-noise asphalts components, pavement profile depth and CPX-value relationships.
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Alamri, Mohammed, Qing Lu, and Chunfu Xin. "Preliminary Evaluation of Hot Mix Asphalt Containing Reclaimed Epoxy Asphalt Materials." Sustainability 12, no. 9 (April 26, 2020): 3531. http://dx.doi.org/10.3390/su12093531.

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Designing long-life pavements and pavement recycling with reclaimed asphalt pavement (RAP) are two important strategies for improving the sustainability of asphalt pavements. Epoxy asphalt, as a proven long-life pavement material, is attracting attention from the pavement community for its use in road pavements. The recyclability of epoxy asphalt mixtures, however, has never been studied and has now become one concern in promoting the use of epoxy asphalt in road pavements. This study attempts to explore the performance of hot mix asphalt (HMA) containing reclaimed epoxy asphalt materials. Reclaimed epoxy asphalt was fabricated in the laboratory and incorporated into regular asphalt mixtures at various contents. Specimens were prepared and tested for their performance in comparison with mixtures without RAP. It was found that replacing the coarse aggregates in HMA with epoxy RAP up to 80% did not negatively affect its Marshall stability, tensile strength, and moisture resistance. The plastic deformation at failure of HMA, however, may increase with the increase in epoxy RAP content. At the current stage, the results from this study do not provide evidence to invalidate the use of epoxy RAP in HMA, at least at a coarse aggregate replacement rate of less than 40%.
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Puccini, Monica, Pietro Leandri, Andrea Luca Tasca, Lavinia Pistonesi, and Massimo Losa. "Improving the Environmental Sustainability of Low Noise Pavements: Comparative Life Cycle Assessment of Reclaimed Asphalt and Crumb Rubber Based Warm Mix Technologies." Coatings 9, no. 5 (May 26, 2019): 343. http://dx.doi.org/10.3390/coatings9050343.

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Increasing environmental awareness is pushing towards sustainable approaches to the design and management of transport infrastructures. A life cycle assessment of low noise pavements is carried out here, with the aim to evaluate and compare the use of warm mix asphalts containing crumb rubber (CR) from end-of-life tires (ELTs) and reclaimed asphalt pavement (RAP). Different scenarios have been considered, taking into account production, construction, maintenance activities, and end-of-life of the pavement, according to a cradle to grave approach. Hot mix asphalt (HMA) was used as a reference wearing course. Results show that the simultaneous implementation of warm asphalt technologies and recycled materials can lead to a 50% reduction of the environmental burdens, compared to the standard scenario. The difference is mainly ascribed to the material depletion, the energy consumption, and the emissions associated with the frequency of maintenance of the wearing course. The use of asphalt rubber is environmentally advantageous, if compared to polymer modified binders (PMB); moreover, rubberized open-graded mixtures require the lowest bitumen content and maintenance. The findings of this research support the use of recycled materials and warm technologies as a way to improve the environmental sustainability of low noise pavements.
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Bozkurt, Tarık Serhat, and Ahmet Sertaç Karakaş. "Investigation of Asphalt Pavement to Improve Environmental Noise and Water Sustainability." Sustainability 14, no. 22 (November 11, 2022): 14901. http://dx.doi.org/10.3390/su142214901.

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Controlling environmental noise and reducing excessive noise is necessary to protect human health and provide auditory comfort. People are frequently exposed to traffic noise in their daily life and traffic noise is a considerable problem on the city scale. This study investigates the sound absorption coefficient in asphalt pavements so as to reduce traffic and environmental noise. The important parameters affecting the sound absorption coefficient in asphalt pavement, such as the use of porous asphalt pavements, clogging pores, the mixture content change, the thickness change, and getting wet, were identified. It is stated that the sound absorption coefficient in the asphalt layer can be increased with the use of a porous asphalt layer, and by changing the thickness and mixture content. In addition, with the effects of global warming, water supply problems are observable in cities. In this context, the use of rainwater is of vital importance. Permeability of the asphalt layer and storage of rainwater in the lower layer are recommended. The accumulation of rainwater with the aid of drainage in porous asphalt pavements has been investigated and the use of rainwater within the scope of recycling is explored. Within the scope of the research, the construction of porous asphalt pavements is suggested in a system that can store water, reuse rainwater with a new system proposal, and reduce environmental noise by increasing sound absorption performance. Accordingly, it will be possible to reduce the environmental noise level and to use rainwater within the scope of recycling. According to varying thicknesses, porous asphalt pavements were modeled using the finite element method, and the Von Mises stress and vertical deformation results of different thicknesses were compared.
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Oreto, Cristina, Francesca Russo, Rosa Veropalumbo, Nunzio Viscione, Salvatore Antonio Biancardo, and Gianluca Dell’Acqua. "Life Cycle Assessment of Sustainable Asphalt Pavement Solutions Involving Recycled Aggregates and Polymers." Materials 14, no. 14 (July 11, 2021): 3867. http://dx.doi.org/10.3390/ma14143867.

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The pursuit of sustainability in the field of road asphalt pavements calls for effective decision-making strategies, referring to both the technical and environmental sustainability of the solutions. This study aims to compare the life cycle impacts of several pavement solution alternatives involving, in the binder and base layers, some eco-designed, hot- and cold-produced asphalt mixtures made up of recycled aggregates in substitution for natural filler and commercial recycled polymer pellets for dry mixture modification. The first step focused on the technical and environmental compatibility assessment of the construction and demolition waste (CDW), jet grouting waste (JGW), fly ash (FA), and reclaimed asphalt pavement (RAP). Then, three non-traditional mixtures were designed for the binder layer and three for the base layer and characterized in terms of the stiffness modulus. Asphalt pavement design allowed for the definition of the functional units of Life Cycle Assessment (LCA), which was applied to all of the pavement configurations under analysis in a “from cradle to grave” approach. The LCA results showed that the best performance was reached for the solutions involving a cold, in-place recycled mixture made up of RAP and JGW in the base layer, which lowered all the impact category indicators by 31% on average compared to those of the traditional pavement solution. Further considerations highlighted that the combination of a cold base layer with a hot asphalt mixture made up of CDW or FA in the binder layer also maximized the service life of the pavement solution, providing the best synergistic effect.
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Bilema, Munder, Mohamad Yusri Aman, Norhidayah Abdul Hassan, Zubair Ahmed Memon, Hend Ali Omar, Nur Izzi Md Yusoff, and Abdalrhman Milad. "Mechanical Performance of Reclaimed Asphalt Pavement Modified with Waste Frying Oil and Crumb Rubber." Materials 14, no. 11 (May 24, 2021): 2781. http://dx.doi.org/10.3390/ma14112781.

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Researchers are exploring the utilisation of reclaimed asphalt pavement (RAP) as a recycled material to determine the performance of non-renewable natural aggregates and other road products such as asphalt binder, in the construction and rehabilitation stage of asphalt pavements. The addition of RAP in asphalt mixtures is a complex process and there is a need to understand the design of the asphalt mixture. Some of the problems associated with adding RAP to asphalt mixtures are moisture damage and cracking damage caused by poor adhesion between the aggregates and asphalt binder. There is a need to add rejuvenators to the recycled mixture containing RAP to enhance its performance, excepting the rutting resistance. This study sought to improve asphalt mixture performance and mechanism by adding waste frying oil (WFO) and crumb rubber (CR) to 25 and 40% of the RAP content. Moreover, the utilisation of CR and WFO improved pavement sustainability and rutting performance. In addition, this study prepared five asphalt mixture samples and compared their stiffness, moisture damage and rutting resistance with the virgin asphalt. The results showed enhanced stiffness and rutting resistance of the RAP but lower moisture resistance. The addition of WFO and CR restored the RAP properties and produced rutting resistance, moisture damage and stiffness, which were comparable to the virgin asphalt mixture. All waste and virgin materials produce homogeneous asphalt mixtures, which influence the asphalt mixture performance. The addition of a high amount of WFO and a small amount of CR enhanced pavement sustainability and rutting performance.
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Alharbi, Fawaz, Fahad Alshubrumi, Meshal Almoshaogeh, Husnain Haider, Ahmed Elragi, and Sherif Elkholy. "Sustainability Evaluation of Cold In-Place Recycling and Hot Mix Asphalt Pavements: A Case of Qassim, Saudi Arabia." Coatings 12, no. 1 (January 1, 2022): 50. http://dx.doi.org/10.3390/coatings12010050.

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The construction of conventional hot mix asphalt (HMA) pavements results in a number of economic and environmental issues, such as the cost of new overlays and associated impacts on natural resources. Although the cold recycling with an emulsified asphalt-recycling agent holds certain benefits over the HMA, its implementation on different road types, ranging from farm-to-market roads to expressways, is yet contentious due to the need for sophisticated equipment and trained workforce. The present research developed a methodology to evaluate all the three dimensions of sustainability, including economic (construction cost), environmental (natural resource depletion), and social (need for advanced equipment and skilled labor) of various scenarios of RAP and conventional asphalt pavements. The present study evaluated an equivalent thickness of the Cold In-place Recycling (CIR) pavement, which behaves similar to HMA pavement under the influence of different traffic loads. Fifty CIR and HMA scenarios for different traffic volumes and pavement layers thicknesses were developed. Finally, the sustainability of all the scenarios was evaluated for traffic designation in Saudi Arabia using fuzzy-based multicriteria analysis. Ranking of scenarios found CIR as a more sustainable overlay option for the feeders, collectors, main urban streets, expressways, and heavily trafficked highways in industrial areas where ESALs (Equivalent Single Axle Loads) range between 2,000,000 and >31,000,000. Considering the limited availability of advanced equipment and skilled labor for CIR pavements, HMA was found be a more sustainable option for farm-to-market roads with the “very light” traffic class. The methodology will help the pavement managers in decision making regarding the selection of sustainable pavement technologies for different road types in Saudi Arabia and the rest of the world.
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Al-Saffar, Zaid Hazim, Haryati Yaacob, Herda Yati Katman, Mohd Khairul Idham Mohd Satar, Munder Bilema, Ramadhansyah Putra Jaya, Ahmed Salama Eltwati, and Hassanain Radhi Radeef. "A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators." Sustainability 13, no. 16 (August 11, 2021): 8970. http://dx.doi.org/10.3390/su13168970.

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Reclaimed asphalt pavement (RAP) has received much attention recently due to its increased use in hot mix asphalt (HMA) pavements to enhance pavement sustainability. The use of aged asphalt in RAP, which is highly oxidised and has lost its properties due to exposure to traffic loads and climatic conditions throughout its lifespan, can cause asphalt mixtures to stiffen and embrittle, thus negatively affecting the behaviour of asphalt mixtures. This issue may be resolved by including rejuvenating agents that can restore both physical and rheological properties of aged asphalt by increasing maltene fractions and decreasing asphaltene. However, the high restoration capacity of any kind of rejuvenating agent does not assure the durability of restored aged asphalt. This study explored the performance and durability of rejuvenated asphalt mixtures embedded with several types of rejuvenators identified from the extensive literature review. The study serves as a significant reference to predict future challenges in rejuvenating aged asphalt.
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Rafi, Javaria, Mumtaz Kamal, Naveed Ahmad, Murryam Hafeez, Muhammad Faizan ul Haq, Syeda Aamara Asif, Faisal Shabbir, and Syed Bilal Ahmed Zaidi. "Performance Evaluation of Carbon Black Nano-Particle Reinforced Asphalt Mixture." Applied Sciences 8, no. 7 (July 10, 2018): 1114. http://dx.doi.org/10.3390/app8071114.

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Applications of nanotechnology in the pavement industry have increased rapidly during the last decade in order to enhance a pavement’s sustainability and durability. Conventional asphalt binder generally does not provide sufficient resistance against rutting at high temperatures. Carbon black nano-particles (CBNPs, produced by perennial mountain trees’ carbonization) were mixed into the performance grade (PG) 58 asphalt binder in this study. Conventional asphalt binder tests (penetration, ductility and softening point), frequency sweep, performance grading, and bitumen bond strength tests were conducted to study the enhancement in the properties of asphalt binder. Dynamic modulus and wheel tracking tests were also performed to investigate the effect of CBNPs on asphalt mixture properties. Experimental results demonstrated that preferred dosage of CBNPs in asphalt is 10% by weight of the bitumen. Results of scanning electron microscopy (SEM) and storage stability tests validated homogenous and stable dispersion of CBNPs in the asphalt binder. Asphalt mixtures became stiffer and resistant to rutting at high temperatures by addition of CBNPs in asphalt binder. Significant improvement in bitumen aggregate bond strength was also observed by incorporating CBNPs. It is concluded that CBNPs can be used to effectively enhance the high-temperature performance and consequently the sustainability of flexible pavements.
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Cota, José, Cynthia Martínez-Lazcano, Marco Montoya-Alcaraz, Leonel García, Alejandro Mungaray-Moctezuma, and Alejandro Sánchez-Atondo. "Improvement in Durability and Service of Asphalt Pavements through Regionalization Methods: A Case Study in Baja California, Mexico." Sustainability 14, no. 9 (April 24, 2022): 5123. http://dx.doi.org/10.3390/su14095123.

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The objective of this research is to develop a pavement design procedure that allows calibrating the design variables of asphalt pavements using regionalized conditions, to obtain efficient pavement performance for developing countries with limited resources and data. This study analyzes the roads of the state of Baja California, Mexico; where type structures are determined and the performance grade of the binder used in the manufacture of asphalt concrete is regionalized according to the weather conditions altitude, traffic, and quality of the available materials. In a complementary way, the economic incidence of pavements during its service life is analyzed, projecting the analysis with different pavement structures and damage coefficients. The results show that this approach favors the asphalt pavements that comply with the projected in its service life, reducing maintenance interventions and costs.
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Dissertations / Theses on the topic "Asphalt pavement sustainability"

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Filho, Wilson Unger. "Estudo de mistura asfáltica reciclada a frio produzida com 100% de revestimento asfáltico fresado e agente de reciclagem emulsionado." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3138/tde-25032019-102457/.

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A restauração de pavimentos flexíveis ocasiona, em todo o mundo, problemas ambientais em função do descarte dos materiais provenientes da demolição do pavimento existente, um dos motivos pelo qual a reciclagem de pavimentos tem se mostrado, cada vez mais, uma técnica sustentável e necessária, tanto na manutenção quanto na construção de novas estruturas. Na atualidade, existem as mais diversas técnicas de reciclagem. Neste trabalho, avaliou-se a reciclagem do revestimento asfáltico fresado (RAP) com a adição de agente de reciclagem emulsionado (ARE), estudando a viabilidade de seu emprego em bases asfálticas de pavimentos novos. Por meio de um programa laboratorial de ensaios, foi realizada a análise da estocagem, cura e compactação de uma mistura produzida em uma usina de reciclagem a frio. Para tanto, utilizou-se os parâmetros de módulo de resiliência (MR), resistência à tração por compressão diametral (RTCD) e dano por umidade induzida (DUI). A compactação da mistura no laboratório foi realizada com o Compactador Giratório SUPERPAVE (CGS) e com o Compactador Marshall, sendo avaliada a influência do tempo de estocagem, que é o tempo transcorrido entre a mistura e a compactação (na condição solta), e o tempo de cura após a compactação dos corpos de prova. Os resultados indicam que os parâmetros de MR, RTCD e DUI aumentaram quando a mistura solta permaneceu estocados, pela provável interação entre o agente de reciclagem emulsionado e o ligante asfáltico oxidado do RAP. Foi observado ainda um ganho substancial nos valores de MR e RTCD durante o período de cura, o qual foi pouco influenciado pela estocagem prévia do material. Quanto ao efeito do tipo de compactação, foi possível observar que os corpos de prova produzidos no CGS apresentaram maiores valores de RTCD, MR e DUI em relação aos corpos de prova do compactador Marshall, chegando, inclusive, a dobrar o valor de RTCD após 56 dias de cura. Também foi realizada a construção de dois trechos experimentais com a mistura reciclada estudada, visando o acompanhamento da execução, assim como, o monitoramento do desempenho da mistura, em campo, ao longo do tempo. Constatou-se que foi possível atingir a densidade obtida na compactação Marshall desde que sejam utilizados rolos compactadores adequados e que a espessura da camada seja limitada em até 8 cm. Já os levantamentos deflectométricos realizados durante o monitoramento confirmaram o comportamento mecânico observado em laboratório, indicando o ganho de rigidez da base reciclada ao longo do tempo. Conclui-se, portanto, que o emprego da mistura a frio de RAP com agente de reciclagem emulsionado é uma alternativa viável para a construção de bases de pavimentos rodoviários novos.
Asphalt pavements maintenance produces worldwide residues from milling of deteriorated pavements. Therefore, pavement recycling is a sustainable and necessary technique for new pavement construction and rehabilitation. Nowadays, there many technologies to apply recycling to pavement maintenance. This study evaluated the reuse of the reclaimed asphalt pavement (RAP) mixed with emulsified asphalt recycling agent and its viability to be used as an asphalt base course in new pavements. A laboratory program was used to assess the storage, the cure and compaction of a mix of RAP - emulsified asphalt recycling agent produced in a cold central plant recycling plant (CCPR). The resilient modulus (MR), the indirect tensile strength (ITS) and the moisture induced damage (MID), were used. The compaction at the laboratory was performed using de Superpave Gyratory Compactor (SGC) and the Marshall compactor. The storage period is referred as the time elapsed between the mix and the compaction, in the loose condition. On the other hand, the curing period is associated to the period elapsed after compaction of the specimens. Results showed that the storage period has little effect on the MR, ITS and MID parameters. However, this period was important to likely allow the emulsified asphalt recycling agent to interact with the aged asphalt binder from the RAP. It was observed a substantial increase of MR and ITS parameters during the curing and, again, the storage period had little effect on this. Regarding the compaction method, the SGS specimens had higher values at ITS, MR and MID values, when compared to the Marshall specimens. At the curing time of 56 days, the ITS was doubled at the SGS specimens. Additionally, this study performed the construction of two trial sections with the studied mix. The goal was to register the execution and assess its performance in field during a period. It was verified that in field is possible to reach Marshall densities, since adequate roller compactors are used with specific thickness. The performance of the trial sections was done from FWD testing. These results confirmed the laboratory mechanical behavior of the recycled cold mix, showing that the curing increase of the stiffness. Therefore, it is concluded that the cold mix using emulsified asphalt recycling agent is a viable alternative for the base course construction of new road pavements.
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Mantalovas, Konstantinos. "Increasing the Circularity of asphalt mixtures: Integrated Sustainability and Circularity Assessment as a progress monitoring tool towards more Circular and Sustainable asphalt pavements." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/482219.

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Sustainability and Circular Economy (CE) are two concepts that lately have been profoundly linked to each other. The road engineering industry has gradually been adapting practices that are considered both circular and sustainable. However, not all of these practices entirely consider the whole life environmental and circularity assessment and implications of asphalt mixtures.; which in turn leads to doubtfully circular and sustainable approaches. For this reason in this thesis, after analysing the ways that National Road Authorities implement and communicate CE through questionnaires and web searches, a Material Circularity Index quantifying framework, based on the proposed methodology of the Ellen MacArthur Foundation, for asphalt mixtures was developed to assess their circularity. Within this framework, aspects relevant to the mechanical performance of the asphalt mixtures have also been incorporated. Furthermore, in order to also include the aspect of sustainability, a combined circularity and environmental sustainability assessment framework and indicator for asphalt mixtures with reclaimed asphalt was developed; by utilising the Material Circularity index methodology and the well-established framework of Life Cycle Assessment. The development of the frameworks was followed by case studies that verified the models and projected their usefulness towards more informed decisions when it comes to more circular and sustainable asphalt mixtures. Results of this thesis highlight that National Road Authorities are still facing a plethora of challenges towards the implementation and communication of CE, along with lack of knowledge and incentives. They do implement CE principles such as recycling and preventive maintenance, but they do not utilise metrics to assess their performance. By utilising the proposed indicator and frameworks circular and sustainable recommendations could be drawn along with a knowledge development map for the involved stakeholders. Most importantly, it was deduced that practices that are considered sustainable and highly circular, after the combined sustainability and circularity assessment , were actually found not to be what believed so far. Thus, when it comes to asphalt mixtures and their life cycles, during the decision-making process, each CE-related action must be thoroughly investigated case by case.
Sustainability and Circular Economy (CE) are two concepts that lately have been profoundly linked to each other. The road engineering industry has gradually been adapting practices that are considered both circular and sustainable. However, not all of these practices entirely consider the whole life environmental and circularity assessment and implications of asphalt mixtures.; which in turn leads to doubtfully circular and sustainable approaches. For this reason in this thesis, after analysing the ways that National Road Authorities implement and communicate CE through questionnaires and web searches, a Material Circularity Index quantifying framework, based on the proposed methodology of the Ellen MacArthur Foundation, for asphalt mixtures was developed to assess their circularity. Within this framework, aspects relevant to the mechanical performance of the asphalt mixtures have also been incorporated. Furthermore, in order to also include the aspect of sustainability, a combined circularity and environmental sustainability assessment framework and indicator for asphalt mixtures with reclaimed asphalt was developed; by utilising the Material Circularity index methodology and the well-established framework of Life Cycle Assessment. The development of the frameworks was followed by case studies that verified the models and projected their usefulness towards more informed decisions when it comes to more circular and sustainable asphalt mixtures. Results of this thesis highlight that National Road Authorities are still facing a plethora of challenges towards the implementation and communication of CE, along with lack of knowledge and incentives. They do implement CE principles such as recycling and preventive maintenance, but they do not utilise metrics to assess their performance. By utilising the proposed indicator and frameworks circular and sustainable recommendations could be drawn along with a knowledge development map for the involved stakeholders. Most importantly, it was deduced that practices that are considered sustainable and highly circular, after the combined sustainability and circularity assessment , were actually found not to be what believed so far. Thus, when it comes to asphalt mixtures and their life cycles, during the decision-making process, each CE-related action must be thoroughly investigated case by case.
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"Performance Evaluation of Reclaimed Asphalt Pavement in Hot Mix Asphalt Modified with Organosilane." Master's thesis, 2018. http://hdl.handle.net/2286/R.I.49319.

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abstract: Use of Recycled Asphalt Pavement (RAP) in newly designed asphalt mixtures is becoming a common practice. Depending on the percentage of RAP, the stiffness of the hot mix asphalt (HMA) increases by incorporating RAP in mixes. In a climatic area such as the City of Phoenix, RAP properties are expected to be more oxidized and aged compared to other regions across the US. Therefore, there are concerns about the cracking behavior and long-term performance of asphalt mixes with high percentage of RAP. The use of Organosilane (OS) in this study was hypothesized to reduce the additional cracking potential and improve resistance to moisture damage of the asphalt mixtures when using RAP. OS has also the potential to improve the bond between the aggregate and asphalt binder. The use of OS also reduces the mixing and compaction temperatures required for asphalt mixtures, making it similar to a warm mix asphalt (WMA), Six asphalt mixes were prepared with three RAP contents, 0%, 15% and 25%, with and without Organosilane. The mixing temperature was reduced by 10°C and the compaction temperature was reduced by 30°C. Mix designs were performed, and the volumetric properties were compared. The mixture laboratory performance was evaluated for all mixtures by conducting Dynamic Modulus, Flow Number and Tensile Strength Ratio tests. The study findings showed that mixtures achieved better compaction at a reduced temperature of 30°C. Mixtures modified with Organosilane generally exhibited softer behavior at the extreme ends of lower and higher temperatures. The lower moduli are to reduce the potential for cracking. For the Flow Number test, the RAP mixtures with OS passed the minimum required at all traffic levels. Tensile Strength Ratio results increased with the increase in RAP percentage, and further increase was observed when OS was used. The OS reduced the sticking nature of the binder to the molds and equipment, which reduced the efforts in cleaning them. Finally, the future use of RAP by the City of Phoenix would positively contributes to their sustainability aspiration and initiatives. The use of Organosilane may even facilitates higher percentage of RAP usage; it definitely improves the moisture resistance of asphalt mixtures, especially when lower mixing and compaction temperatures are desired or used.
Dissertation/Thesis
Masters Thesis Civil, Environmental and Sustainable Engineering 2018
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"Pavement Temperature Effects on Overall Urban Heat Island." Master's thesis, 2013. http://hdl.handle.net/2286/R.I.17862.

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abstract: In recent years, an increase of environmental temperature in urban areas has raised many concerns. These areas are subjected to higher temperature compared to the rural surrounding areas. Modification of land surface and the use of materials such as concrete and/or asphalt are the main factors influencing the surface energy balance and therefore the environmental temperature in the urban areas. Engineered materials have relatively higher solar energy absorption and tend to trap a relatively higher incoming solar radiation. They also possess a higher heat storage capacity that allows them to retain heat during the day and then slowly release it back into the atmosphere as the sun goes down. This phenomenon is known as the Urban Heat Island (UHI) effect and causes an increase in the urban air temperature. Many researchers believe that albedo is the key pavement affecting the urban heat island. However, this research has shown that the problem is more complex and that solar reflectivity may not be the only important factor to evaluate the ability of a pavement to mitigate UHI. The main objective of this study was to analyze and research the influence of pavement materials on the near surface air temperature. In order to accomplish this effort, test sections consisting of Hot Mix Asphalt (HMA), Porous Hot Mix asphalt (PHMA), Portland Cement Concrete (PCC), Pervious Portland Cement Concrete (PPCC), artificial turf, and landscape gravels were constructed in the Phoenix, Arizona area. Air temperature, albedo, wind speed, solar radiation, and wind direction were recorded, analyzed and compared above each pavement material type. The results showed that there was no significant difference in the air temperature at 3-feet and above, regardless of the type of the pavement. Near surface pavement temperatures were also measured and modeled. The results indicated that for the UHI analysis, it is important to consider the interaction between pavement structure, material properties, and environmental factors. Overall, this study demonstrated the complexity of evaluating pavement structures for UHI mitigation; it provided great insight on the effects of material types and properties on surface temperatures and near surface air temperature.
Dissertation/Thesis
M.S. Civil and Environmental Engineering 2013
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Books on the topic "Asphalt pavement sustainability"

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Ill.) International Airfield and Highway Pavements Conference (2019 Chicago. Airfield and Highway Pavements 2019: Innovation and sustainability in highway and airfield pavement technology : selected papers from the International Airfield and Highway Pavements Conference 2019, July 21-24, 2019, Chicago, Illinois. Reston, Virginia: American Society of Civil Engineers, 2019.

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Oeser, Markus, Michael Wistuba, Pengfei Liu, and Di Wang, eds. Temperature Reduction Technologies Meet Asphalt Pavement: Green and Sustainability. MDPI, 2023. http://dx.doi.org/10.3390/books978-3-0365-6519-4.

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Mohammad, Louay. Advancement in the Design and Performance of Sustainable Asphalt Pavements: Proceedings of the 1st GeoMEast International Congress and Exhibition, Egypt 2017 on Sustainable Civil Infrastructures. Springer, 2017.

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Book chapters on the topic "Asphalt pavement sustainability"

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Das, Animesh. "Economic Sustainability Considerations in Asphalt Pavement Design." In Sustainability Issues in Civil Engineering, 61–71. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1930-2_5.

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Sufian, A., M. Hossain, and G. Schieber. "Optimum Tack Rate for Hot-Mix Asphalt Bonding." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 419–28. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_27.

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Khoury, Issam, Shad Sargand, Roger Green, Benjamin Jordan, and Paul Cichocki. "Rutting Resistance of Asphalt Mixes Containing Highly Modified Asphalt (HiMA) Binders at the Accelerated Pavement Load Facility in Ohio." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 429–39. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_28.

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Sha, Aimin, Jie Wang, Liqun Hu, and Xiaolong Zou. "Analysis of Dynamic Response of Asphalt Pavement in Heavy Vehicle Simulator Tests." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 291–308. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_19.

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Arraigada, Martin, Federico Perrotta, Christiane Raab, Gabriele Tebaldi, and Manfred N. Partl. "Use of APT for Validating the Efficiency of Reinforcement Grids in Asphalt Pavements." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 509–21. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_33.

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Liu, Liping, Yu Yuan, and Lijun Sun. "Study of In-Service Asphalt Pavement High-Temperature Deformation Based on Accelerated Pavement Test." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 461–73. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_30.

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Huang, Yucheng, Fred Hugo, W. JvdM Steyn, Haocheng Xiong, and Linbing Wang. "Comparative Evaluation of Performance of Warm Mix RAP Asphalt Under Accelerated Unidirectional Wheelload Trafficking." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 847–61. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_55.

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Wu, Jinting, Fen Ye, Frederick Hugo, Yinting Wu, Feng Wang, and Xinhui Ding. "Behavior Evolution on Performance of UV-Irradiation Aged Asphalt Mixtures Under Reduced-Scale Accelerated Trafficking." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 373–91. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_24.

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Solaimanian, Mansour, Ghassan Chehab, and Marcelo Medeiros. "Evaluating Resistance of Hot Mix Asphalt Overlays to Reflective Cracking Using Geocomposites and Accelerated Loading." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 407–18. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_26.

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Greene, James Howard, and Bouzid Choubane. "Thickness and Binder Type Evaluation of a 4.75-mm Asphalt Mixture Using Accelerated Pavement Testing." In The Roles of Accelerated Pavement Testing in Pavement Sustainability, 475–90. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42797-3_31.

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Conference papers on the topic "Asphalt pavement sustainability"

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Sarsam, Saad. "Reserving the Sustainability of Flexible Pavement In Terms Of Microcrack Healing." In INTERNATIONAL CONFERENCE ON ARCHITECTURAL AND CIVIL ENGINEERING 2020. Cihan University-Erbil, 2021. http://dx.doi.org/10.24086/aces2020/paper.195.

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The fatigue life of Asphalt concrete pavement consists of two components, namely the resistance to fracture and crack, and the ability to heal the micro cracks. Both processes changes with temperature and time. Such processes exhibit the sustainability potential of asphalt concrete pavement. Repeated traffic loading and environmental impact causes deterioration in asphalt concrete pavement mixes and exhibit micro cracking and decreases its stiffness. However, due to the crack healing phenomena effect, asphalt mixes can demonstrate strength recovery and prolongs the fatigue life of asphalt mixtures. Many studies have been conducted to characterize the asphalt healing and its mechanisms. The approach to study this potential requires implementation of proper additives to the asphalt cement which can improve the self healing property of asphalt concrete and reserve the quality of the pavement. The aim of this work is to thoroughly understand the cracking and healing mechanisms and to define appropriate laboratory tests and type of additives which can increase the healing potential and can be used for a reliable performance-related selection and characterization of the asphalt binders, and the suitable asphalt concrete mixture based on the traffic loading and the environment issues. It was felt that it is essential to evaluate whether it is possible to achieve accelerated healing in asphalt mixtures within laboratory conditions, which could represent the actual behavior in the field. It was concluded that the process of healing is a sustainable measure and can be used to balance the damage process. The influence of several additives on the microcrack healing concept was discussed. The amount and rate of healing of asphalt cement which depend on several properties such as; its healing potential, stiffness, and surface free energy was also analized.
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Strömberg, Larissa, Lev Khazanovich, and Staffan Hintze. "Enhancement of sustainable road design towards compatibility between pavement materials." In 12th International Conference on Concrete Pavements. International Society for Concrete Pavements, 2021. http://dx.doi.org/10.33593/jqo388gl.

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The need for correctly made comparisons of different pavement materials, regarding cost-efficiency to reduce the climate impact, is increasing, especially in connection with new types of climate-neutral materials, so that sub-optimizations and oblique competition do not arise. Both the Swedish and USA's authorities are beginning to demand the Environmental Product Declaration (EPDs) as a certificate of the pavements' environmental performances from the contractors. There are some methodological difficulties to use the EPDs for comparison of the environmental impacts between different asphalt mixes or between the asphalt- and concrete pavements. This paper has analyzed two new standards which propose to extend the declaration to several aspects of sustainability: technical, environmental and economic performance. In this article, we have investigated if these standards can be used to form a framework to create an extended sustainability declaration of road pavements allowed a multidisciplinary comparison of different materials based on technical performance, Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA).
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Sun, Lihui, William G. Buttlar, Behzad Behnia, and Henrique Reis. "Acoustic Emission Low-Temperature Performance Grade Evaluation of Asphalt Roadways Materials." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86067.

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Low-temperature cracking is a major form of distress in asphalt concrete pavements located in cold regions. A review of the background and fundamental aspects of the Acoustic Emission (AE) based approach with a brief overview of its application to estimate low-temperature performance of unaged, short-term, and long-term aged binders as well as asphalt concrete materials are presented. A comparison of the cracking temperatures estimated using the traditional rheological-based method and the embrittlement temperatures obtained using the proposed AE-based method is presented and discussed. In addition, embrittlement temperatures of asphalt concrete samples extracted from field cores are also presented and discussed. Results indicate that the AE-based method is faster and more accurate than the traditionally used methods. Moreover, results suggest that AE could be considered as a viable rapid, inexpensive, yet precise characterization approach for pavement materials, which could be effectively used towards enhancing pavement sustainability and resiliency.
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"Characterization of Recycled Asphalt Pavement as Aggregate for Concrete." In SP-355: Recent Advances in Concrete Technology and Sustainability Issues. American Concrete Institute, 2022. http://dx.doi.org/10.14359/51736031.

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"Concrete vs Asphalt: Pavement and Lighting Costs in Italian Road Tunnels." In SP-326: Durability and Sustainability of Concrete Structures (DSCS-2018). American Concrete Institute, 2018. http://dx.doi.org/10.14359/51711054.

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Rafiq, Waqas, Muhammad Humair, Madzlan Bin Napiah, Muslich Hartadi Sutanto, Muhammad Ali Musarat, and Abdul Muhaimin Memon. "Performance Evaluation of Rutting and Moisture Damage containing Warm Mix Asphalt Mixtures with Recycled Asphalt pavement." In 2020 Second International Sustainability and Resilience Conference: Technology and Innovation in Building Designs. IEEE, 2020. http://dx.doi.org/10.1109/ieeeconf51154.2020.9319960.

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Anwar, Mohammad Ibna, Md Arifuzzaman, Md Kamrul Islam, and Uneb Gazder. "Using Sulfur Extender to Evaluate the Environmental Effects and Energy Demand of Reclaimed Asphalt Pavement." In 2021 Third International Sustainability and Resilience Conference: Climate Change. IEEE, 2021. http://dx.doi.org/10.1109/ieeeconf53624.2021.9668014.

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Anwar, Mohammad Ibna, Md Arifuzzaman, and Muhammad Muhitur Rahman. "Assessment of Environmental Impact and Energy Demand of Sulfur Modified Asphalt in Road Pavement." In 2020 Second International Sustainability and Resilience Conference: Technology and Innovation in Building Designs. IEEE, 2020. http://dx.doi.org/10.1109/ieeeconf51154.2020.9319983.

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Ozer, Hasan, Punit Singhvi, Rebekah Yang, Imad L. AL-Qadi, and Ibrahi Abuawad. "A Sustainability Evaluation of Hot-In-Place Asphalt Recycling Technique." In Eighth International Conference on Maintenance and Rehabilitation of Pavements. Singapore: Research Publishing Services, 2016. http://dx.doi.org/10.3850/978-981-11-0449-7-131-cd.

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Cooper, Jr., Samuel B., Louay N. Mohammad, and Mostafa A. Elseifi. "Infrastructure Sustainability: The Use of Recycled Asphalt Shingles in Flexible Pavements." In Geo-Shanghai 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413418.008.

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Reports on the topic "Asphalt pavement sustainability"

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Saadeh, Shadi, and Pritam Katawał. Performance Testing of Hot Mix Asphalt Modified with Recycled Waste Plastic. Mineta Transportation Institute, July 2021. http://dx.doi.org/10.31979/mti.2021.2045.

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Plastic pollution has become one of the major concerns in the world. Plastic waste is not biodegradable, which makes it difficult to manage waste plastic pollution. Recycling and reusing waste plastic is an effective way to manage plastic pollution. Because of the huge quantity of waste plastic released into the world, industries requiring a large amount of material, like the pavement industry, can reuse some of this mammoth volume of waste plastics. Similarly, the use of reclaimed asphalt pavement (RAP) has also become common practice to ensure sustainability. The use of recycled waste plastics and RAP in HMA mix can save material costs and conserve many pavement industries’ resources. To successfully modify HMA with RAP and waste plastic, the modified HMA should exhibit similar or better performance compared to conventional HMA. In this study, recycled waste plastic, linear low-density polyethylene (LLDPE), and RAP were added to conventional HMA, separately and together. The mechanical properties of conventional and modified HMA were examined and compared. The fatigue cracking resistance was measured with the IDEAL Cracking (IDEAL CT) test, and the Hamburg Wheel Tracking (HWT) test was conducted to investigate the rutting resistance of compacted HMA samples. The IDEAL CT test results showed that the cracking resistance was similar across plastic modified HMA and conventional HMA containing virgin aggregates. However, when 20% RAP aggregates were used in the HMA mix, the fatigue cracking resistance was found to be significantly lower in plastic modified HMA compared to conventional HMA. The rutting resistance from the HWT test at 20,000 passes was found to be similar in all conventional and modified HMA.
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