Browsing by Author "Sirin, Okan"
Now showing items 1-20 of 31
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Acoustic Performance Evaluation of Dense-Graded Asphalt Pavements in Qatar
Sirin, Okan; Ohiduzzaman, Md; Kassem, Emad; Hassan, Wahid ( Hindawi , 2021 , Article)There is pressing and growing demand from the public to design and construct roads with a low noise level. This paper investigated the acoustic performance of asphalt pavements in the State of Qatar to assist transport ... -
Application of Tools of Quality Function Deployment and Modified Balanced Scorecard for Optimal Allocation of Pavement Management Resources
Sirin, Okan; Gunduz, Murat; Moussa, Abdullah ( Institute of Electrical and Electronics Engineers Inc. (IEEE) , 2020 , Article)Pavement management is a set of tools used to evaluate and maintain pavements so that the pavements can be used safely and effectively over a certain period. Many traditional methods were and are still being used by entities ... -
An Approach for Adjusting the Laboratory-Determined Dynamic Modulus Master Curve of Asphalt Layers Based on Falling Weight Deflectometer Measurements
Alfarra, Mohammed; Sirin, Okan; Sadeq, Mohammed; Masad, Eyad ( Hindawi , 2023 , Article)Structural assessment is critical for designing asphalt pavement overlays, estimating the remaining life of pavements, and selecting an appropriate rehabilitation strategy for existing pavements. The falling weight ... -
Assessment of Critical Project Success Factors for Management of Pavement Construction Using the Delphi Approach
Gunduz, Murat; Sirin, Okan; Al Nawaiseh, Hazem M. ( American Society of Civil Engineers (ASCE) , 2024 , Article)Construction project management is typically adopted in modern civil landscapes. Owing to the significant global increase in infrastructure investments, it is crucial to analyze the success and timely completion of such ... -
Assessment of Pavement Performance Management Indicators Through Analytic Network Process
Sirin, Okan; Gunduz, Murat; Shamiyeh, Mohammed E. ( Institute of Electrical and Electronics Engineers Inc. (IEEE) , 2022 , Article)Pavement industry is very critical for any public authority looking after the safety and comfort of its citizens because it is the backbone of many transportation networks. Studying the factors that affect the pavement ... -
Characterisation of air voids in w-fam samples using x-ray ct imaging
Sadeq, Mohammed; Masad, Eyad A.; Al-Khalid, Hussain; Sirin, Okan ( CRC Press/Balkema , 2018 , Conference Paper)This study documents the use of high-resolution X-Ray Computed Tomography to characterise air void distribution in Fine Aggregate Mixtures (FAM) prepared using Warm Mix Asphalt (WMA) additives (W-FAM). Specimens were imaged ... -
Comparative Characterization of Field and Laboratory-Aged Binders Modified with Antioxidant Additives and Copolymers Using Fourier Transform Infrared Spectroscopy and Gel Permeation Chromatography
Khan, Mohammad S.; Kassem, Emad; McDonald, Armando; Sirin, Okan; Aston, D. Eric ( American Society of Civil Engineers (ASCE) , 2022 , Article)This study investigates the behavior of antioxidant additives and copolymers to an asphalt binder by comparing laboratory-aged (up to 60 h) and antioxidant-modified binders with binders extracted from field cores. To ... -
Comparative evaluation of fatigue resistance of warm fine aggregate asphalt mixtures
Sadeq, Mohammed; Al-Khalid, Hussain; Masad, Eyad; Sirin, Okan ( Elsevier Ltd , 2016 , Article)Fatigue cracking is one of the crucial distresses in asphalt pavements that affect its service life and rehabilitation process. The resistance of asphalt mixtures to fatigue failure in the laboratory experiments is influenced ... -
Comprehensive evaluation of long-term aging of asphalt mixtures in hot climatic condition
Sirin, Okan; Ohiduzzaman, Md; Kassem, Emad; Paul, Dalim K. ( Taylor & Francis , 2018 , Article)Aging is an inevitable phenomenon in hot mix asphalt production and during in-service period of flexible pavement operation. This paper presents an experimental evaluation of long-term aging of asphalt mixtures in Qatar. ... -
Demonstrating the Worth of Recycled Aggregates - A Case Study from Qatar
Murray Reid, J.; Hassan, Khaled E.; Sirin, Okan; Taha, Ramzi A. ( American Society of Civil Engineers (ASCE) , 2016 , Conference Paper)Recycled aggregates are widely used in unbound applications in many countries. However, in some areas the materials available may not meet all the requirements of the local specifications. This is the case in Qatar, where ... -
Disruption factor of asphalt mixtures
Guarin, Alvaro; Roque, Reynaldo; Kim, Sungho; Sirin, Okan ( Taylor & Francis , 2012 , Article)Typically, aggregate gradation is selected to meet Superpave mix design specification; however, many Superpave mixtures have exhibited deficient field performance. The porosity of the dominant aggregate size range (DASR), ... -
Effect of ageing on asphalt binders in the State of Qatar: a case study
Sirin, Okan; Paul, Dalim K.; Kassem, Emad; Ohiduzzaman, Md ( Taylor and Francis Ltd. , 2017 , Article)Ageing of asphalt binders has a significant impact on the rheological properties of asphalt binders and thus affects the performance of asphalt pavements. The rate of binder ageing is accelerated at high temperatures. This ... -
Evaluation and calibration of dynamic modulus prediction models of asphalt mixtures for hot climates: Qatar as a case study
Ahmad, Al-Tawalbeh; Sirin, Okan; Sadeq, Mohammed; Sebaaly, Haissam; Masad, Eyad ( Elsevier , 2022 , Article)The dynamic modulus (|E*|) of asphalt mixtures is one of the most important inputs in Mechanistic-Empirical (ME) pavement analysis and design. Several models have been developed to predict the dynamic modulus based on ... -
Evaluation of Combined Excavation Waste and Reclaimed Asphalt Pavement Aggregates for Use in Road Bases and Sub-bases
Taha, Ramzi; Sirin, Okan; Sadek, Husam ( OMICS International , 2014 , Article)More than 15 million tons of aggregates are imported each year to Qatar from neighbouring countries. Large quantities of waste materials (around 20 million tons/year) from excavation waste, demolition rubble and reclaimed ... -
Evaluation of Federal Highway Administration’s Traffic Noise Model for Pavements in Qatar
Sirin, Okan; Ohiduzzaman, Md; Kassem, Emad ( Springer Nature , 2020 , Book chapter)Traffic noise is an irritating problem especially for residents near major transportation corridors. It’s in the interest of transportation agencies to check the noise level to develop measures to reduce noise if it exceeds ... -
Evaluation of short-term aging protocol for asphalt mixtures
Sirin, Okan; Paul, Dalim K.; Kassem, Emad; Ohiduzzaman, Md ( MDPI AG , 2019 , Article)Asphalt mixtures are subjected to short-term aging during the production, placement, and compaction processes. Proper evaluation of asphalt pavement performance relies on the accurate characterization of asphalt mixtures ... -
Evaluation Of The Main Factors Affecting Tire-Pavement Interaction Noise
Alasad, Fahad Abdulati (2018 , Master Thesis)Traffic noise is an environmental pollution that affects many people in today’s modernized world. It disrupts the quality of life and causes annoyance, stress, sleep deprivation, and several health problems. When vehicles ... -
Evaluation of traffic noise in the state of qatar
Kassem, Emad; Ohiduzzaman, Md; Sirin, Okan ( CRC Press/Balkema , 2018 , Conference Paper)Mitigating traffic noise is a major concern for transportation departments worldwide. A number of noise mitigation procedures are recognized to control noise emitting from traffic stream. However, noise reduction potential ... -
A framework for the analysis of damage and recovery characteristics of asphalt mixtures
Sadeq, Mohammed; Huang, Chien Wei; Masad, Eyad; Al-Khalid, Hussain; Sirin, Okan ( Taylor & Francis , 2020 , Article)This study presents two approaches for evaluating damage and recovery characteristics of asphalt mixtures. The first approach focuses on determining damage by extracting recoverable viscoelastic strain that has no damage ... -
Impact of Aging on the Microstructure of Asphalt Binder Modified with Antioxidant Additives and Copolymers
Khan, Mohammad Solaiman; Kassem, Emad; Aston, D. Eric; Sirin, Okan; McDonald, Armando ( Chinese Society of Pavement Engineering , 2023 , Article)The effect of long-term aging on asphalt binders mixed with antioxidant additives and copolymers demonstrated potential for retarding oxidative aging at the nanoscale based on atomic force microscopy (AFM) characterization. ...