Pouria Hajikarimi

Dr. Pouria Hajikarimi


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2016 in Journal of Materials in Civil Engineering
Verified
Journal Article
Closed access
EFEllie H. Fini
Ellie H. Fini
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi
MRMohammad Rahi
Mohammad Rahi
FNFereidoon Moghadas Nejad
Fereidoon Moghadas Nejad
Physiochemical and rheological properties of asphalt binder are known to directly relate to asphalt pavement performance as it relates to fatigue and low temperature cracking. While other performance criteria such as rutting is also affected by binder properties, the latter is known to be also very sensitive to aggregate skeleton and mixture gradation. To enhance pavement performance, asphalt industry has commonly used various modifiers to improve binder rheological properties both before and after it is exposed to oxidative aging. Among those additives are polymers, ground tire rubber, as well as several organic and inorganic fillers. Inorganic fillers such as nano-clay and silica fume showed to be promising candidates to enhance asphalt rheology and aging behavior. Such enhancements are typically attributed to the presence of silicate platelet and silica particles. Accordingly, this paper investigates the merits of application of mesoporous silica nanoparticles in this paper referred to as nano-...

1 November 2012 in Construction and Building Materials
Verified
Journal Article
Closed access
SASassan Aflaki
Sassan Aflaki
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi

1 March 2014 in Journal of Materials in Civil Engineering
Verified
Journal Article
Closed access
SASassan Aflaki
Sassan Aflaki
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi
EFEllie H. Fini
Ellie H. Fini
BZBoubacar Zada
Boubacar Zada

26 May 2015 in Road Materials and Pavement Design
Verified
Journal Article
Closed access
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi
MRMohammad Rahi
Mohammad Rahi
FNFereidoon Moghadas Nejad
Fereidoon Moghadas Nejad
In this research, three different methods of rutting resistance evaluation of asphalt binders were compared using high temperature characteristics of rubber-modified binders. For this purpose, implementing dynamic shear rheometer, frequency sweep test and repeated creep and recovery test were conducted on neat and modified samples at 60°C. Rutting resistance of asphalt binders were determined by three approaches: the Superpave specification parameter, G*/sin δ, the cross model for calculating zero shear viscosity, and the Burgers model to determine viscous component of creep stiffness. Utilising these three approaches, rutting resistance of modified asphalt binders were determined and then normalised to rutting resistance of the neat asphalt binder in order to calculate rutting resistance improvement ratio. Results showed that ranking of modified asphalt binders according to three approaches is the same while the quantity of improvement was significantly different. Also, based on these methods, it was observed that crumb rubber has better anti-rutting properties than reclaimed rubber.

7 May 2018 in Road Materials and Pavement Design
Verified
Journal Article
Closed access
MNMohammad Ali Notani
Mohammad Ali Notani
FNFereidoon Moghadas Nejad
Fereidoon Moghadas Nejad
AKAli Khodaii
Ali Khodaii
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi
This paper examines the effect of waste toner on fatigue resistance of asphalt binder. Fatigue resistance of toner-modified asphalt binders was studied implementing the linear amplitude sweep test, which has been approved by AASHTO as a provisional standard and is currently being considered as a specification test for evaluating fatigue resistance of original and modified asphalt binders. The linear amplitude sweep is a cyclic torsion test conducted with a dynamic shear rheometer (DSR) which uses increasing loading amplitudes to accelerate the damage process. In order to characterise a waste toner as an additive for modifying an original asphalt binder, the XRD test has been done. DSR test results were used to determine fatigue resistance parameters and dissipated energy ratio to investigate fatigue behaviour of toner-modified asphalt binders. This paper argues that the improved fatigue resistance properties of toner-modified asphalt binders are reflected in the enhancement of the number of loading cycles, shortening crack length and degrading dissipated energy which remains in the specimens.

1 September 2021 in Construction and Building Materials
Verified
Journal Article
Closed access
AHAlireza Sadat Hosseini
Alireza Sadat Hosseini
Pouria HajikarimiPouria Hajikarimi
Pouria Hajikarimi
MGMostafa Gandomi
Mostafa Gandomi
FNFereidoon Moghadas Nejad
Fereidoon Moghadas Nejad
AGAmir H. Gandomi
Amir H. Gandomi