تصفح حسب المؤلف "Ebead, Usama"
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A review of recent advances in the science and technology of seawater-mixed concrete
Ebead, Usama; Lau, Denvid; Lollini, Federica; Nanni, Antonio; Suraneni, Prannoy; Yu, Tao... more authors ... less authors ( Elsevier , 2022 , Article)A review of the last 16 years of research (2005-2021) on seawater-mixed concrete is presented. A very significant amount of research, both fundamental and applied, has been performed on this topic, and there is worldwide ... -
A strut and tie model for FRCM-strengthened reinforced concrete deep beams
Wakjira, Tadesse; Ebead, Usama ( ISEC Press , 2019 , Conference Paper)Exiting literature revealed that fabric reinforced cementitious matrix (FRCM) is a promising material for the strengthening of shear deficient reinforced concrete (RC) beams. However, most of the available experimental ... -
An effective technique utilizing frcm system in strengthening rc beams in shear
Wakjira, Tadesse; Ebead, Usama ( ISEC Press , 2018 , Conference Paper)This paper presents the efficacy of a new technique of fabric reinforced cementitious matrix (FRCM) for the strengthening of shear deficient reinforced concrete (RC) beams. This technique involves embedding the FRCM ... -
Bond characteristics of different FRCM systems
Younis, A.; Younis, Adel; Ebead, Usama ( Elsevier , 2018 , Article)© 2018 Elsevier Ltd Fabric-reinforced cementitious matrix (FRCM) composites are usually applied on the concrete surface for the purpose of strengthening reinforced concrete structures. The efficiency of FRCM as a strengthening ... -
Comparing models of problem and project-based learning (PBL) courses and student engagement in civil engineering in Qatar
Naji, Khalid Kamal; Ebead, Usama; Al-Ali, Abdulla Khalid; Du, Xiangyun ( Modestum LTD , 2020 , Article)Background: While improved student engagement has been highlighted as an essential goal and a major outcome of Problem and Project-Based learning (PBL), little empirical evidence has been provided regarding types and forms ... -
Cost effectiveness of reinforcement alternatives for a concrete water chlorination tank
Younis, Adel; Ebead, Usama; Suraneni, Prannoy; Nanni, Antonio ( Elsevier , 2020 , Article)Reinforced concrete tanks in water/wastewater treatment plants are susceptible to severe corrosion due to aggressive exposure conditions resulting from the application of certain treatment chemicals and methods. Non-corrosive ... -
Different FRCM systems for shear-strengthening of reinforced concrete beams
Younis, Adel; Ebead, Usama; Shrestha, Kshitij C. ( Elsevier Ltd , 2017 , Article)This paper presents the results of an extensive experimental study on the efficacy of different fabric-reinforced cementitous matrix (FRCM) systems for the strengthening of reinforced concrete (RC) beams, which are critical ... -
Effect of corrosion damage on the flexural performance of RC beams strengthened with FRCM composites
Elghazy, Mohammed; El Refai, Ahmed; Ebead, Usama; Nanni, Antonio ( Elsevier Ltd , 2017 , Article)This paper reports on the flexural behavior of corrosion-damaged reinforced concrete (RC) beams strengthened with different fabric-reinforced cementitious matrix (FRCM) composites. Three groups of beams were subjected to ... -
Effect of using multiple fabric plies on the tensile behaviour of carbon textile reinforced mortar
Younis, Adel; Ebead, Usama ( University of Cantabria - Building Technology R&D Group , 2020 , Conference Paper)Recently, textile reinforced mortar (TRM) has emerged as a viable strengthening material for reinforced concrete (RC) and masonry structures. Understanding the TRM tensile behaviour is important to achieve an accurate ... -
Effectiveness of Fabric-Reinforced Cementitious Matrix in Strengthening Reinforced Concrete Beams
Ebead, Usama; Shrestha, Kshitij C.; Afzal, Muhammad S.; El Refai, Ahmed ( American Society of Civil Engineers (ASCE) , 2017 , Article)This paper reports on the efficiency of fabric-reinforced cementitious matrix (FRCM) in enhancing the flexural capacity and deformational characteristics of RC beams. In the main experimental part of the paper, 12 RC beams, ... -
Effectiveness of frcm system in strengthening rc beams in shear using hybrid nse/eb technique
Ebead, Usama; Wakjira, Tadesse ( ISEC Press , 2018 , Conference Paper)This paper presents an experimental study on the efficacy of a recently introduced hybrid "near surface embedded/ externally bonded" NSE/EB fabric reinforced cementitious matrix (FRCM). Seven medium scale RC beams, deficient ... -
Efficacy of NSM hybrid FRP strips for shear strengthening of rc deep beams
Ibrahim, Mohamed; Ebead, Usama ( University of Cantabria - Building Technology R&D Group , 2020 , Conference Paper)This paper presents an experimental study on the efficacy of near-surface mounted (NSM) hybrid carbon/glass fiber reinforced polymer (FRP) strips for the strengthening of shear-critical reinforced concrete (RC) deep beams. ... -
Engineering instructors' professional agency development and identity renegotiation through engaging in pedagogical change towards PBL
Du, Xiangyun; Naji, Khalid Kamal; Ebead, Usama; Ma, Jianping ( Taylor and Francis Ltd. , 2021 , Article)This qualitative longitudinal study explored three engineering instructors' professional agency in implementing project-based learning (PBL), including multiple sets of data (18 interviews, observations, and written ... -
Engineering students' approaches to learning and views on collaboration: How do both evolve in a PBL environment and what are their contributing and constraining factors?
Du, Xiangyun; Ebead, Usama; Sabah, Saed; Ma, Jianping; Naji, Khalid Kamal ( Modestum LTD , 2019 , Article)Background: This study investigated the development of engineering students' approaches to learning and views on collaboration in a PBL environment. Material and methods: An explanatory mixed research approach was employed ... -
Engineering students' conceptions of collaboration, group-based strategy use, and perceptions of assessment in PBL: A case study in Qatar
Du, Xiangyun; Naji, Khalid Kamal; Sabah, Saed; Ebead, Usama ( Tempus Publications , 2020 , Article Review)This study has investigated the natures of collaboration, group-based strategy use, and perception of assessment, as well as interactions among these aspects, by examining group performance in engineering students' first ... -
Engineering students' readiness to transition to emergency online learning in response to COVID-19: Case of Qatar
Naji, Khalid Kamal; Du, Xiangyun; Tarlochan, Faris; Ebead, Usama; Hasan, Mahmood A.; Al-Ali, Abdulla Khalid... more authors ... less authors ( Modestum LTD , 2020 , Article)This study examined engineering students' initial readiness to transition to emergency online learning in response to COVID-19 in Qatar. A theoretical framework is proposed for understanding the factors influencing students' ... -
Explainable machine learning model and reliability analysis for flexural capacity prediction of RC beams strengthened in flexure with FRCM
Wakjira, Tadesse G.; Ibrahim, Mohamed; Ebead, Usama; Alam, M. Shahria ( Elsevier , 2022 , Article)This paper presents a data-driven approach to determine the load and flexural capacities of reinforced concrete (RC) beams strengthened with fabric reinforced cementitious matrix (FRCM) composites in flexure. A total of ... -
Externally Bonded And Near-Surface Mounted FRP Strips For Shear Strengthening Of RC Deep Beams
Ibrahim, Mohamed Amin Babiker (2019 , Master Thesis)This thesis presents an experimental study on the efficacy of fiber reinforced polymer (FRP) strips using externally bonded (EB) and near surface mounted (NSM) techniques for the shear strengthening of reinforced ... -
Externally bonded hybrid carbon/glass FRP strips for shear strengthening of RC deep beams
Ibrahim, Mohamed; Ebead, Usama ( University of Cantabria - Building Technology R&D Group , 2020 , Conference Paper)The experimental study on the shear strengthening the efficacy of a recently introduced hybrid carbon/glass fiber reinforced polymer (FRP) for reinforced concrete (RC) deep beams has been presented in this study. The hybrid ... -
FAI: Fast, accurate, and intelligent approach and prediction tool for flexural capacity of FRP-RC beams based on super-learner machine learning model
Wakjira, Tadesse G.; Abushanab, Abdelrahman; Ebead, Usama; Alnahhal, Wael ( Elsevier , 2022 , Article)Fiber-reinforced polymer (FRP) composites have recently been considered in the field of structural engineering as one of the best alternatives to conventional steel reinforcement due to their high tensile strength, ...