Comparative Study on Flexural Performance of Foamed Concrete Beam Containing Plastic Fibers

Keerio, Manthar Ali; Lakhiar, Muhammad Tahir; Sohu, Samiullah

doi:10.30880/ijscet.2019.10.01.001

Cited by 8 publications

(7 citation statements)

References 7 publications

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“…al. [12] used 0% to 1% plastic fibres with an increment of 0.2% as reinforcement material and studied the flexural strength of the concrete. It was found that the workability of concrete slightly reduced with the addition of plastic fibres, which was attributed to the fibres' resistance to flow.…”

Section: Related Workmentioning

confidence: 99%

Influence of Long Polypropylene Fibre on the Properties of Concrete

Jhatial

Mastoi

Siyal

et al. 2020

QUESTRJ

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Concrete is the most used building and construction material globally due to the ease of availability and durability. It is a well-known fact that concrete can easily withstand compressive stresses; however, it fails under tension. To improve this deficiency, steel bar reinforcement has been used. However, with the steel reinforcement, additional permanent self-weight is transferred on the structure and is prone to corrosion. Hence, engineers and researchers have been working to search for more sustainable reinforcing material that could be cost-effective and simultaneously increase tensile strength. This experimental work was carried out to study the influence of long (38.1 mm) polypropylene (PP) fibres on the workability and mechanical strengths (compressive and flexural) of concrete. Three different fibre fraction content, 0.20%, 0.25% and 0.30% were selected to reinforce concrete. A total of 12 cylinders of 300mm×150mm dimension (3 cylinders per mix) and 12 beams of 609.6mm×304.8mm×101.6mm dimension (3 beams per mix) were used to determine the compressive strength and flexural strength after the samples achieved 28 days curing. Based on the results, it can be observed that longer fibres do not significantly influence the compressive strength as much as they do on flexural strength. Furthermore, longer length fibres, like shorter fibres, obstruct the workability of concrete. Comparing with previous findings, it can be concluded that for patching of macrocracks, longer length PP fibres should be used.

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Section: Related Workmentioning

confidence: 99%

Influence of Long Polypropylene Fibre on the Properties of Concrete

Jhatial

Mastoi

Siyal

et al. 2020

QUESTRJ

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“…The coir bers are accessible in large quantities easily (M. A. Keerio at al., 2019). In consequence, coir bre is utilized as substitute to enhance tensile and exural capacity of concrete.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Characterization of Precast Self-Compacting Concrete Shell Beam Incorporating Grounded Coal Bottom Ash and Coir Fibre

AHMED

Khan

Aziz

2022

Preprint

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This study emphasizes a sustainable approach on alternative green construction techniques that make use of agro-industrial waste and recyclable construction materials to overcome the greenhouse gas emissions and to protect the consumptions of natural resources. In this research experimental study is carried out to evaluate the structural characteristics of self-compacting concrete (SCC) by utilizing ground coal bottom ash (GCBA) as a cement substitute, coir fibre (CF) as a filler with self-consolidating precast concrete beam (PS-B). To determine the fresh state and hardened state properties, a concrete mix design with compressive strength of 45 MPa based on Eurocode-2 guidelines was carried out with different percentages of GCBA and CF. The outcomes revealed that the workability of SCC mix increases up to 10% addition and decreases between 10% and 20% with the incorporation of GCBA. However, it increased significantly by addition of 10% GCBA and 0.5% CF. In addition, the modulus of elasticity, compressive strength, and split tensile strength of SCC were improved substantially with addition of 10% GCBA and 0.5% CF. Lastly, the flexural capacity against four-point bending test in terms of load-deflection behaviour of PS-B was considerably increased by 62.96% by incorporating 0.5% CF − 10% GCBA- compared to the other shell beams, and observed the least deflection.

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“…Keerio M.A. et al [18] selected plastic fiber with the content of 0.6% to investigate the ultimate load and load deflection profiles of composites, it showed that the fiber reinforced foamed concrete had higher ultimate load than that of neat foamed concrete. Comparing single type of fibers, hybrid modes have more advantages to improve the mechanical properties of the foamed concrete.…”

Section: Introductionmentioning

confidence: 99%

Flexural Performance of Sisal Fiber Reinforced Foamed Concrete under Static and Fatigue Loading

et al. 2020

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To improve the weak mechanical properties of the foamed concrete that resulted from a large number of pores, a plant fiber is used as fill with the matrix. In this study, five contents of sisal fiber are added into the foamed concrete to investigate the static and fatigue performance of composites. The static and fatigue experimental results show that the sisal fiber can improve the mechanical properties of the foamed concrete. When the content of sisal fiber is less than 0.15%, the higher the content of sisal fiber, the greater the bending strength and fatigue life of the foamed concrete. In contrast, if the sisal fiber content is larger than 0.15%, the bending strength and fatigue life decrease with the increasing fiber content. From the regression analyses, the results show that the double linear relationships exist not only between the sisal fiber content and the flexural strength, but also between the sisal fiber content and the fatigue life of the foamed concrete. In this study, the optimal content of sisal fiber mixed in the foamed concrete can be inferred to be 0.133%.

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Comparative Study on Flexural Performance of Foamed Concrete Beam Containing Plastic Fibers

Cited by 8 publications

References 7 publications

Influence of Long Polypropylene Fibre on the Properties of Concrete

Influence of Long Polypropylene Fibre on the Properties of Concrete

Mechanical Characterization of Precast Self-Compacting Concrete Shell Beam Incorporating Grounded Coal Bottom Ash and Coir Fibre

Flexural Performance of Sisal Fiber Reinforced Foamed Concrete under Static and Fatigue Loading

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