Browsing by Author "Rabie, Mohamed"
Now showing items 1-12 of 12
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Ambient and Heat-Cured Geopolymer Composites: Mix Design Optimization and Life Cycle Assessment
Rabie, Mohamed; Irshidat, Mohammad R.; Al-Nuaimi, Nasser ( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out in this regard to explore the optimum mix ... -
Carbon Nanotubes Dosage Optimization for Strength Enhancement of Cementitious Composites
Mohammad R., Irshidat; Al-Nuaimi, Nasser; Salim, Soheb; Rabie, Mohamed ( Elsevier , 2019 , Conference Paper)Concrete is the most common used material for construction in Qatar as well as in the world. Exposure to sever environmental conditions causes physical deterioration of concrete structures and significantly affect the ... -
Development of Sustainable Eco-friendly Geopolymer Composites for Construction Applications
Rabie, Mohamed; Irshidat, Mohammad; Al-Nuaimi, Nasser ( Qatar University Press , 2020 , Poster)Geopolymerization is a process where silica and alumina rich source materials turns into excellent binding materials by the aid of alkali solutions. Materials such as fly ash are by-products in energy power plants. Fly ash ... -
Hybrid effect of carbon nanotubes and polypropylene microfibers on fire resistance, thermal characteristics and microstructure of cementitious composites
Mohammad R., Irshidat; Al-Nuaimi, Nasser; Rabie, Mohamed ( Elsevier , 2020 , Article)The current study experimentally investigates the hybrid effect of carbon nanotubes (CNTs) and polypropylene (PP) microfibers on fire resistance and thermal characteristics of cementitious composites. Cement mortar with ... -
Influence of carbon nanotubes on phase composition, thermal and post-heating behavior of cementitious composites
Irshidat, Mohammad R.; Al-Nuaimi, Nasser; Rabie, Mohamed ( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)This paper experimentally investigates the influence of carbon nanotubes (CNTs) on phase composition, microstructure deterioration, thermal behavior, and residual mechanical strengths of cementitious composites exposed to ... -
Microstructure and mechanical behavior of cementitious composites with multi-scale additives
Irshidat, Mohammad R.; Al-Nuaimi, Nasser; Rabie, Mohamed ( Techno Press , 2021 , Article)This paper studies the effect of using multi-scale reinforcement additives on mechanical strengths, damage performance, microstructure, and water absorption of cementitious composites. Small dosages of carbon nanotubes ... -
Parametric Optimization of RC Beams Strengthened with FRCM Using FE Modelling and Response Surface Methodology
Aborahmeh, Qusai; Rabie, Mohamed; Ebead, Usama ( Qatar University Press , 2023 , Conference Paper)This study focuses on the numerical and statistical analyses to predict the mid-span moment capacity of RC beams strengthened with fabric reinforcement cementitious mortar (FRCM) laminate. A finite element model (FEM) has ... -
The role of polypropylene microfibers in thermal properties and post-heating behavior of cementitious composites
Irshidat, Mohammad R.; Al-Nuaimi, Nasser; Rabie, Mohamed ( Multidisciplinary Digital Publishing Institute (MDPI) , 2020 , Article)This paper experimentally studied the effect of polypropylene (PP) microfibers on thermal and post-heating mechanical behaviors of cementitious composites. Cement mortars with small dosage of polypropylene fibers were ... -
Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement
Irshidat, Mohammad R.; Al-Nuaimi, Nasser; Rabie, Mohamed ( Springer Nature , 2022 , Article)The present study investigates the feasibility of using two types of municipality solid wastes incineration ashes, namely, fly ash and bottom ash in the production of sustainable alkali-activated binder. The ashes are ... -
Sustainable utilization of waste carbon black in alkali-activated mortar production
R. Irshidat, Mohammad; Al-Nuaimi, Nasser; Rabie, Mohamed ( Elsevier , 2021 , Article)This article investigates the potential utilization of waste carbon black (WCB) resulting from the aluminum industry as a by-product material in the fly ash-based geopolymer composites production. Experimental study was ... -
The Mechanical and Environmental Performance of Fiber-Reinforced Polymers in Concrete Structures: Opportunities, Challenges and Future Directions
Sbahieh, Sami; Rabie, Mohamed; Ebead, Usama; Al-Ghamdi, Sami G. ( MDPI , 2022 , Article Review)The construction sector is well known for its critical environmental impact resulting from the consumed amounts of raw materials and the tremendous emissions of greenhouse gases. Therefore, scientists need to promote and ... -
Thermal behavior and post-heating fracture characteristics of polypropylene microfiber-reinforced geopolymer binders
Mohammad R., Irshidat; Al-Nuaimi, Nasser; Rabie, Mohamed ( Elsevier , 2022 , Article)This paper investigated the post-heating behavior of fly ash-based geopolymer binders reinforced with polypropylene (PP) microfibers. Geopolymer binders with different fiber contents including 0%, 0.05%, 0.1%, and 0.2% by ...