A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behavior of Modified Asphalt Using Polystyrene Concrete in Static Creep: Experimental and Numerical Study
This study aims at evaluating the effect of polystyrene on the rutting of flexible pavement and to find the optimum percentages of polystyrene, which gives the superior characteristics of flexible pavement. Asphalt specimens with five-polystyrene contents (0%, 5%, 10%, 15%, and 20%) by volume of binder were tested at three testing temperature grades (25 °C, 40 °C and 55 °C). The results showed the faster the strain increases when the mixture containing up to 5% of polystyrene under the higher temperature of 55 °C, consequently, the permanent deformation increases, if the polystyrene percentage increases at high temperatures. Moreover, the higher stiffness is obtained with an increase in the polystyrene content for a given level of time at higher temperature. A three-dimensional finite element model (FE) is developed using FE software ABAQUS. The asphalt is modeled as a linear isotropic viscoelastic material; with a time-dependent stress represented as follows ABAQUS. The results show that there is a good agreement between the results which were obtained by finite element modeling and experimental work.
Behavior of Modified Asphalt Using Polystyrene Concrete in Static Creep: Experimental and Numerical Study
This study aims at evaluating the effect of polystyrene on the rutting of flexible pavement and to find the optimum percentages of polystyrene, which gives the superior characteristics of flexible pavement. Asphalt specimens with five-polystyrene contents (0%, 5%, 10%, 15%, and 20%) by volume of binder were tested at three testing temperature grades (25 °C, 40 °C and 55 °C). The results showed the faster the strain increases when the mixture containing up to 5% of polystyrene under the higher temperature of 55 °C, consequently, the permanent deformation increases, if the polystyrene percentage increases at high temperatures. Moreover, the higher stiffness is obtained with an increase in the polystyrene content for a given level of time at higher temperature. A three-dimensional finite element model (FE) is developed using FE software ABAQUS. The asphalt is modeled as a linear isotropic viscoelastic material; with a time-dependent stress represented as follows ABAQUS. The results show that there is a good agreement between the results which were obtained by finite element modeling and experimental work.
Behavior of Modified Asphalt Using Polystyrene Concrete in Static Creep: Experimental and Numerical Study
Iran J Sci Technol Trans Civ Eng
Al-Mistarehi, Bara’ Wasfi (author) / Obaidat, Yasmeen Taleb (author) / Khedaywi, Taisir S. (author) / Al-smadi, Amro Thair (author)
2022-06-01
9 pages
Article (Journal)
Electronic Resource
English
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