Abstract
Objective: To design, fabricate and evaluate the new features of a portable manual rebar bender, a Hand Tool that is used for bending rebar and other malleable materials. Methods: The researcher improves on the previously available portable manual rebar bender. Experts assessed the acceptability of this bender in terms of design and portability. Furthermore, as previously stated, the study significantly improves the usefulness of the inexpensively produced bending machine for reinforcing concrete with negligible human force. Findings: The device created has a valuable impact on the construction industry’s human force due to its affordability and marketability. Also,the present tools guaranteed strength, durability, and lightness in weight. Furthermore, the portable manual rebar is made of different elements such as a center axle, stationary backup roller, and sleeve. The results after ten trials showed that the portable manual rebar bender could finish 9 mm, 20mm, and 12 mm stirrup at an average of 24.3 seconds, 26.3 seconds, and 27.7 seconds, respectively. Additional results from seven to ten trials showed the bending time for 24 seconds stirrup for 9mm, 26 seconds stirrups for 10 mm, and 28 seconds stirrup for 12 mm. Furthermore, after a series of ten trials, the instrument achieved an accurate angle bent of 90 degrees. The M= 4.77 and 4.82 are very acceptable in terms of design and portability tools based on the evaluators’ rating. Novelty: The design is novel in terms of cost, portability, and efficiency. The device can be a great help in the structures and buildings. Furthermore, the construction industry will use the portable manual rebar bender to build houses and other local infrastructure to test its effectiveness. Then, the researcher is encouraged to engage in another research to try the innovation. Keywords: Improvised; Innovative; Locally made; Device; Bender
Highlights
Nations development today depends on infrastructures such as skyscrapers, roads, bridges, etc
The design of the device meets the required standard of the industry based on the evaluation of experts from the engineering and construction industry
The accuracy of the device meets the required standard based on evaluation experts from the engineering and construction industry
Summary
Nations development today depends on infrastructures such as skyscrapers, roads, bridges, etc. The portable manual rebar bender was designed to address the existing problem of small construction firms and contractors in places where there were construction works regardless of geographic conditions and terrains This is developed from the principles and mechanisms used by companies worldwide engaged in manufacturing of hydraulic and electric powered rebar and portable bending machines. During this pandemic, people become innovative and creative to create protected materials. Colorimetric logic design utilizing YES/NO logic gate, there are some improvised explosives like nitrate-based improvised explosives, black powder (BP), ammonium nitrate (AN), urea nitrate (UN), and their related constituents(17) This is developed from companies worldwide’ principles and mechanisms engaged in the manufacturing of hydraulic and electric powered rebar and portable bending machines. This study aimed to design, fabricate and evaluate the portable manual rebar bender
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