18 publications
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Assessing the Poisson Ratio of Reinforced Earth under Static and Dynamic StressesBy Saad Issa Sarsam
Abstract: Poisson’s ratio is an essential property of the soil strength and it is a measure of the amount of lateral strain in the soil sample caused due to the longitudinal strain of the soil. An attempt has been made in the present work to detect the variation in the Poisson ratio for reinforced and asphalt stabilized soil when tested under static and dynamic compressive stresses. Soil embankment model was prepared …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 50–56 Read article →
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Contributing factors in the initiation of failure of asphalt concreteBy Saad Issa Sarsam
Abstract: As long as the asphalt concrete pavement is under service, signs of failure usually initiate and the distress types start showing throughout the service life. The asphalt concrete pavement practices repeated tensile and shear stresses through the vehicular loading. In the present study, the contributing factors in the initiation of failure under repeated flexural stresses have been detected. Slab samples of Asphalt concrete have been prepared at the laboratory by …
Published in Trends in Transport Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 55–61 Read article →
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Assessing the Variation in Cutback Asphalt Requirement for Various Geotechnical Properties of Asphalt Stabilized SoilBy Saad Issa Sarsam, Abeer Husain, Siham Almas
Abstract: The subgrade layer must be strong to resist shear failure, tensile stresses and have adequate stiffness to avoid and resist excessive pavement deformation. Available fill materials do not always meet these requirements and may require improvement of their engineering properties, soil stabilization with liquid asphalt may be an alternative to improve the stability, adhesion and waterproofing properties which are desired for embankment construction purpose. The soil in this investigation represents …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 3, 2015 · pp. 17–29 Read article →
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Influence of Microcrack Healing on Interface Bond Shear Strength of Asphalt ConcreteBy Saad Issa Sarsam, Samah Abdulrazzaq AL Nuaimi
Abstract: The flexible pavement layers are susceptible to cracks throughout its service life under the repeated loading and environmental impact. However, microcracks can heal itself through rest period and variation in temperature. In this investigation, the influence of microcrack healing on the interface shear strength of asphalt concrete was assessed. Two types of tack coat (rapid curing cutback RC-70 and cationic medium setting emulsion CMS) and three application rates have been …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 18–28 Read article →
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Influence of Aeration and Curing on Shear Strength of Asphalt Stabilized SoilBy Saad Issa Sarsam
Abstract: Asphalt stabilization technique is usually used to control and improve poor subgrade soil condition. The subgrade soil is the foundation for the roadway structure, its responsibility is to provide the required stability for the overlaying pavement and to limit the deformation due to traffic load repetitions by furnishing homogeneous stress distribution. In this work, the unconsolidated undrained Triaxial test was implemented for comparatively assessing the impact of asphalt stabilization on …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 2, 2019 · pp. 10–17 Read article →
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Influence of Healing Cycles and Asphalt Content on Resilient Modulus of Asphalt ConcreteBy Saad Issa Sarsam
Abstract: Asphalt concrete pavement is known to exhibit self-healing ability of micro-cracks under repeated loading with rest period and controlled environment. In this work, an attempt has been made to investigate the influence of healing cycles and asphalt content on resilient modulus of asphalt concrete. Asphalt concrete specimens of 100 mm diameter and 63 mm height have been prepared with optimum asphalt requirement and with additional 0.5% asphalt above and below …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 1, 2017 · pp. 23–30 Read article →
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Sustainability of Asphalt Pavement in Terms of CraSustainability of Asphalt Pavement in Terms of Crack Healing Phenomena: A Reviewck Healing Phenomena: A ReviewBy Saad Issa Sarsam
Abstract: The Asphalt concrete mixture is considered to have nonlinear viscoelastic behavior, its fatigue life consists of two components, namely the resistance to fracture and crack, and the ability to heal the micro cracks. Both of the processes change with temperature and time. Such processes exhibit the sustainability potential of asphalt concrete pavement. The approach to study this potential requires mechanical tests like creep or relaxation, strength and repeated load tests. …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 38–55 Read article →
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Pavement Maintenance Management System: A ReviewBy Saad Issa Sarsam
Abstract: Maintenance plays an essential and integral part in the life of a pavement. The pavement maintenance management system (PMMS) is a systematic method for inspection and rating the pavement condition in a given area. The system also performs a cost effectiveness analysis of various maintenance and rehabilitation strategies. Finally the system prioritize and recommend pavement rehabilitation and maintenance to maximize results within a given budget amount. During execution of maintenance …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 19–30 Read article →
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Modeling the Socioeconomic Factors Impact on Household Trip Production for BaghdadBy Saad Issa Sarsam
Abstract: In Baghdad, the number of vehicles has increased more than two folds after 2003. The land use in many sectors has changed and expansions of residential zone are noticeable at other sectors while the restrictions on car ownership and commerce are nil. The restrictions on using many streets due to security issues cause a huge traffic jam among the whole network. It was felt that revision to the transportation policies …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 61–73 Read article →
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Feasibility of Using Nondestructive Testing (NDT) in Roller Compacted Concrete Quality AssessmentBy Saad Issa Sarsam
Abstract: Roller compacted concrete is a no slump, heavy duty concrete usually used in pavement constructed of roadway, parking lots, in areas of frozen environment or aired region where there is shortage of water for curing, and when other paving alternatives do not satisfy the pavement design requirements regarding heavy loading, and nonstandard wheel configuration. The traditional testing e slab samples have been prepared in the laboratory using two types of …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 30–39 Read article →
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Comparative Assessment of Using Visual and Close Range Photogrammetry Techniques to Evaluate Rigid Pavement Surface DistressesBy Saad Issa Sarsam
Abstract: AbstractThe main task of this study is to introduce the close range photogrammetric approach for evaluation of rigid pavement surface condition, and compare the findings with the traditional visual evaluation technique. The visual inspection was conducted by walking through the roadway and evaluating the pavement surface distress visually. As for the photogrammetric fieldwork, it starts with generation of ground control points around the area of distress. A total station device …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 28–36 Read article →
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Assessment of Traffic Accident at Baghdad Urban AreaBy Saad Issa Sarsam, Huda Nadhir Ali
Abstract: Road safety is a priority concern and it is one of the major issues in the planning for intelligent transportation system. Traffic fatalities in Iraq can be considered as the major cause of death rather than the terrorist operations for the last few years according to Central Statistical Organization of the Ministry of Interior. In this investigation, the data of Central Statistical Organization related to traffic accidents for the years …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 30–35 Read article →
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An Overview on Sustainable Transportation Planning for BaghdadBy Saad Issa Sarsam
Abstract: Sustainable transportation system usually refers to any means of transportation which has low impact on the environment (green), affordable to users and can balance the current and future needs. This work is an overview of the transportation planning studies took place during the past six decades for Baghdad. It covers the proposals of the major international consulting firms to manage the urban transportation scheme for future and improve the sustainability …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 1–13 Read article →
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Flexural Behavior of Warm Mix Asphalt ConcreteBy Saad Issa Sarsam
Abstract: Research work on implementation of Warm Mix Asphalt (WMA) for roadway paving has been undertaken by many researchers due to its beneficial impact on the environment and reduction in the fuel consumption. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion. Hot mix asphalt (HMA ) mixture was also prepared for comparison. Beam specimens of (380 mm) in length, …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 10–20 Read article →
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Resilient Characteristics of Modified Subgrade SoilBy Saad Issa Sarsam, Ahmad Zuhair AL Sandok
Abstract: AbstractThe problems with poor subgrade soil which is considered as the foundation for the flexible pavement regarding the deformation under load repetitions is a major concern for road engineers. The Poor subgrade soil may be improved by stabilization or implication of soil reinforcements. In this work, the pneumatic repeated loading testing techniques has been implemented for assessing the influence of both techniques on the resilient characteristics of subgrade soil. Cutback …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 3, 2017 · pp. 28–37 Read article →
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Influence of Polymer Additives on Physical Properties of Asphalt Concrete under Marshal, Flexure and Compressive StressesBy Saad Issa Sarsam, Sara Ali Jasim
Abstract: AbstractThe polymer modified asphalt cement is used today to reduce early pavement distress and extend service life by enhancing adhesion, cohesion, and elasticity. This work studies the impact of polymer additives (SBS, LDPE, and rubber) to asphalt cement on the physical properties of asphalt concrete subjected to compression and flexure stresses, and Marshal volumetric properties. Asphalt concrete cylindrical specimens of 101.6 mm diameter and 127 mm height for compressive strength …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 3, 2017 · pp. 8–17 Read article →
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Influence of Additives and Durability Cycles on the Resilient Modulus of Asphalt Stabilized SoilBy Saad Issa Sarsam, Abeer Husain Mohsen
Abstract: Asphalt stabilized subgrade soils usually show a nonlinear and time dependent response under traffic loading. The elastic property of asphalt stabilized soil is defined by the resilient modulus to represent the nonlinearity behavior with respect to stress level. The aim of this work is to study the impact of durability cycles and additives on the resilient modulus and plastic parameter of the asphalt stabilized soil. Additive materials such as lime …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 32–39 Read article →
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Influence of Combined Stabilization on the Structural Properties of Subgrade SoilBy Saad Issa Sarsam
Abstract: Soil stabilization with liquid asphalt is considered as a sustainable step towards roadway construction on problematic subgrade soil, there are no requirements to import good quality materials or to implement energy consumption, but to mix the readily available soil with liquid asphalt through the cold mix technique. In this work, collapsible soil obtained from Nasiriya was mixed with asphalt emulsion, lime, and combinations of lime and asphalt emulsion (combined stabilization) …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 1, 2017 · pp. 13–24 Read article →