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Iran Rocha Segundo, Elisabete Freitas, Salmon Landi, Jr., Manuel F. M. Costa and Joaquim O. Carneiro
Nowadays, there is increasing concern in transportation engineering about the use of techniques less harmful to the environment and also about road safety. Heterogeneous photocatalysis based on the application of semiconductor materials onto asphalt mixt...
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Caroline Moura, Lucas Nascimento, Carlos Loureiro, Mafalda Rodrigues, Joel Oliveira and Hugo Silva
Steel slag is a byproduct generated as waste during the steelmaking process and can be considered a cost-effective and environmentally acceptable alternative to replace natural aggregates. Using steel slag aggregates (SSA) to produce asphalt mixtures pro...
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Yong-Xiang Ren and Pei-Wen Hao
Microencapsulated phase change materials (PCMs) added to conventional ones can store excessive heat energy and reduce thermal stresses. In this study, melamine?formaldehyde resin phase change microencapsulated PCMs, with different contents of graphene (C...
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Tuo Huang, Shuai Qi, Hongfu Liu, Huanan Yu and Sheng Li
In order to study the influences of confining pressure and temperature on the shear properties of asphalt mixtures, triaxial tests were conducted at 40 °C, 50 °C, and 60 °C, with the confining pressure ranges from 0 to 1 MPa for the widely used continuou...
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Rosa Herrera de la Rosa, Anadelys Alonso Aenlle, Nelson Villegas Muñoz
Pág. 330 - 336
Asphalt professionals in Cuba, taking as a line of work the sustainability of pavements, are involved in the methods for obtaining warm asphalt mixtures, as a technology to achieve construction efficiency, conservation of resources and the environment wi...
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Hugo Alexander Rondón Quintana, Fredy Alberto Reyes Lizcano
Pág. Page 195 - 207
The paper presents the evolution of the resilient modulus, permanent deformation and strength under monotonic loading of a dense hot mixture due to long term exposure to the environment in the city of Bogota D.C. (Colombia). The mixtures were made using ...
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José Neves and João Crucho
The demand for more sustainable transport infrastructure has led to a broader acceptance of waste materials in pavements. An excellent example of this trend is the incorporation of steel slag aggregates (SSA) in asphalt mixtures. This work evaluates the ...
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G. Martinez, B. Caicedo, L. Fuentes, D. Gonzalez, L. Celis, V. Torres
Pág. Page 41 - 50
The present work describes different stages that the Urban Development Institute (IDU) has addressed to achieve the adequate and correct application of crumb rubber modified (CRM) asphalt mixtures. The first research stage in the laboratory included an e...
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Ahmed Abouelsaad, Greg White and Ali Jamshidi
Asphalt mixtures age during service in the field, primarily as the result of chemical changes in the bituminous binder phase. The ageing phenomenon changes the properties of the asphalt mixture, including the stiffness modulus, the resistance to deformat...
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Kai Li, Quan Liu, Yuan Tian, Cong Du and Zhixiang Xu
Asphalt mixtures exhibit complex mechanical behaviors due to their multiphase internal structures. To provide better characterizations of asphalt pavements under various forms of potential distress, a two-dimensional (2D) finite element simulation based ...
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Guodong Zeng, Wenjuan Wu, Juechi Li, Qinsheng Xu, Xianghang Li, Xiangpeng Yan, Ye Han and Jincheng Wei
The high-modulus asphalt mixture produced by hard asphalt has played a good role in reducing asphalt pavement rutting and improving pavement durability. It was widely used in the construction of various levels of road engineering in Europe. However, low-...
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Haisheng Zhao, Jianming Su, Shijie Ma, Chunhua Su, Xiaoyan Wang, Zengguang Li, Jincheng Wei and Shiping Cui
Millions of tons of reclaimed asphalt pavement (RAP) and reclaimed aggregate or reclaimed inorganic binder stabilized aggregate (RAI) is produced every year in China. The cold recycled mixture (CRM) technology reduces fuel consumption, emissions, and cos...
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Gang Xu, Xianhua Chen, Xing Cai, Yunhong Yu and Jun Yang
This paper aims to characterize the three-dimensional (3D) internal structure evolution of asphalt mixtures under freeze?thaw cycles. Asphalt mixtures with three levels of design void content (3%, 5%, and 7%) were prepared in the laboratory. Subsequently...
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Gabriela Ceccon Carlesso, Glicério Trichês, João Victor Staub de Melo, Matheus Felipe Marcon, Liseane Padilha Thives and Lídia Carolina da Luz
Fatigue cracking and rutting are among the main distresses identified in flexible pavements. To reduce these problems and other distresses, modified asphalt mixtures have been designed and studied. In this regard, this paper presents the results of a stu...
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S. Saeed Saliani, Alan Carter, Hassan Baaj and Pejoohan Tavassoti
Utilizing recycled asphalt pavements (RAP) in pavement construction is known as a sustainable approach with significant economic and environmental benefits. While studying the effect of high RAP contents on the performance of hot mix asphalt (HMA) mixes ...
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Hong-xin Guan, Hao-qing Wang, Hao Liu, Jia-jun Yan and Miao Lin
Since the effect of intermediate principal stress on the strength of pavement materials is not entirely clear so far, a proprietary true triaxial apparatus was developed to simulate the spatial status of principal stresses to conduct compressive strength...
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Wojciech Bankowski
The topic of this article is the evaluation of the fatigue life of asphalt concrete mixtures with reclaimed asphalt pavement (RAP). The evaluation was carried out in relation to asphalt concrete mixtures AC22P and high modulus asphalt concrete ACWMS16 wi...
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Jose Norambuena-Contreras and Irene Gonzalez-Torre
This paper aims to evaluate the influence of the microwave heating time on the self-healing properties of fibre-reinforced asphalt mixtures. To this purpose, self-healing properties of dense asphalt mixtures with four different percentages of steel wool ...
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Gonzalo Valdés Vidal, Alejandra Calabi-Floody, Elsa Sanchez-Alonso
Pág. 92 - 103
This study aims to assess the durability of asphalt mixtures through their performance versus damage by aging and water sensibility, depending on the physical properties of aggregates. Twelve types of asphalt mixtures were analyzed, using 3 types of aggr...
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Julián Vidal, Alexander Ossa
Pág. Page 128 - 149
Permanent deformation of asphaltic mixtures in the Metropolitan Area of Valle de Aburra ? Antioquia, which are built under IVIAS? specifications (Instituto Nacional de Vías) and Valle de Aburrá, were studied by employing a constitutive model proposed pre...
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