June 2023 Vol 12 No 1
Author (s) :
1). Ravindra Chopra, Modern Institute of Technology and Research Centre, Alwar, Rajasthan, India
2). Mukesh Kumar, Manipal University Jaipur, Jaipur, Rajasthan, India
3). Rajesh Bhargava, Modern Institute of technology & Research Centre (MITRC), Alwar, Rajasthan, India
4). Shoaib Akhtar, Modern Institute of Technology and Research Centre, Alwar, Rajasthan, India
5). Abhishek Jain, Modern Institute of technology & Research centre (MITRC), Alwar, Rajasthan, India
Abstract :
Fiber-reinforced polymer-matrix composites have been widely applied in various areas due to their excellent mechanical properties. The hybrid composite that was employed in this study is typically a GFRP (Glass Fiber Reinforced Plastic) composite. This type of hybrid composite consists of layers of fiberglass that are interspersed with a copper strip mesh that has a plain weave. Both GFRP composites and hybrid composites were fabricated using 20% weight of e-glass fiber as reinforcement. Epoxy resin LY556 was utilized as the substance for the matrix. The torsion strength of GFRP and hybrid composites is one of the aspects that are investigated in this work. The GFRP composite has more torsional strength as compared to the hybrid composite. This is because hybrid composites have coper strips in between them, resulting in some unfused areas, whereas GFRP composites have all of the fibers completely fused into the resin. The GFRP composite has approximately 58 % more torsional strength.
No of Downloads : 8
Author (s) :
1). S. I. Sarsam, Sarsam and Associates Consult Bureau (SACB), Baghdad, Baghdad, IRAQ
Abstract :
The Asphalt binder usually practices ageing throughout its service life due to the environment. The asphalt binder will practice changes in the rheological properties and loses the required flexibility, its adhesion to the aggregates and cohesion. Implication of Micro and Nano size additives can enhance the quality of the binder and extend its useful life. In the present investigation, two types of asphalt binder with penetration grade (40-50 and 60-70) were digested with micro size additive (Fly ash, and hydrated lime) and Nano size additive (Fumed silica and silica fumes). The treated binders were subjected to the rheological properties determination. It was observed that for (40-50) and (60-70) binders, the penetration viscosity number declines by (2.8, 0.3, 1.4, and 1.4) % and (1.7, 1.2, 2.1, and 0.6) % for (Fly ash, fumed silica, silica fumes, and hydrated lime) treated binder respectively. For (40-50) and (60-70) asphalt binder, the viscosity increases by (5.8, 33.4, 54.4, and 43.6) % and (102.5, 135.5, 112, and 12) % for (Fly ash, fumed silica, silica fumes, and hydrated lime) treated binder respectively. For (40-50) and (60-70) binders, the creep stiffness increases by (5, 25, 35, and 32.5) % and (6.2, 12.5, 18.7, and 25) % when fly ash, fumed silica, silica fumes, and hydrated lime were implemented. It can be revealed that implementation of Nano size additives exhibits higher creep stiffness and lower temperature susceptibility when compared with Micro size additives.
No of Downloads : 5
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