The Use of Voided Reinforced Concrete in Structural Member
Hamidun Mohd Noh1, Norlailatul Izzatil Azwani Mohamad2, Nur’ain Idris3, NurazuwaMd Noor4, Narimah Kasim5, Norliana Sarpin6, Rozlin Zainal7
1Hamidun Mohd Noh, Department of Technology Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
2Norlailatul Izzatil Azwani Mohamad, Department of Technology Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
3Nur’ain Idris, Centre for Diploma Studies, University Tun Hussein Onn Malaysia, Hab Pendidikan Tinggi Pagoh, Jalan Panchor, Pagoh, Muar, Johor, Malaysia.
4Nurazuwa Md Noor, Department of Civil and Environmental Engineering, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
5Narimah Kasim, Department of Technology Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
6Norliana Sarpin, Department of Technology Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
7Rozlin Zainal, Department of Technology Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia.
Manuscript received on 18 June 2019 | Revised Manuscript received on 25 June 2019 | Manuscript Published on 19 June 2019 | PP: 347-350 | Volume-8 Issue-8S June 2019 | Retrieval Number: H10590688S19/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Concrete is widely used as one of the important construction materials. Recently, the problems faced by the construction industry is a significant shortage of raw materials. Thus, various methods are being adopted to reduce the use of concrete. In case of simply supported RC beams, the transition from compression to tension zone at the middle area of neutral axis in stress distribution of a beam was identified as the ineffective region. So, the use of concrete in this ineffective region was replaced by the voided system to the beam by incorporating PVC pipe in order to reduce the weight of the structure. Therefore, the research objectives in this study are to investigate the flexural strength of voided reinforced concrete (RC) beam with various diameters, to determine the total reduction of concrete usage, self-weight, and strength increment of voided RC beam, and to compare the structural strength performance between voided and ordinary of RC beam. The experimental work consists of casting and testing the 1200 x 160 x 160 mm beams with (Ø40mm, Ø50mm, and Ø100mm) and without void at the neutral axis. In order to investigate the flexural strength of the beams, the 3-point loading test has been carried out and the flexural strength between voided and ordinary RC beams were compared. The test results indicated that the strength performance of all RC beams with voided section is stronger than the ordinary RC beam where the V50 RC beam is able to withstand loads up to 38.25kN and has a strength increment of 49.2% compared to the ordinary RC beam. By this material optimization, the reduction of concrete usage and self-weight of the V100 RC beam recorded a reduction of up to 35.14% but in terms of its strength is relatively low compared to the V40 RC beam and V50 RC beam. This study has shown that the replacement of concrete in RC beam with PVC pipe shows a positive result in reducing the dead load without affecting the strength of the structure.
Keywords: Various Diameters, to Determine the Total Reduction of Concrete Usage, Self-Weight, and Strength Increment of Voided RC Beam.
Scope of the Article: Computational Techniques in Civil Engineering