Mechanical Investigation and Durability of HDPE-confined SCC Columns Exposed to Severe Environment

Kurtoğlu, Ahmet Emin; Hussein, Ali; Gülşan, Mehmet Eren; Altan, Mehmet Fatih; Çevik, Abdülkadir

doi:10.1007/s12205-017-1533-6

Cited by 10 publications

(7 citation statements)

References 40 publications

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“…Due to the small wall thickness of plastic tube (small diametrical stress compared with that in the other two directions), it can be considered to be under plane stress 22.5% condition. Kurtoglu et al [14] after testing HDP concrete-filled HDP tubes observed descending or even ascending curve in the post-peak branch of load-deformation relationship depending on tube thickness. The plastic tube exhibits considerable deformations in the plastic stage reaching almost 45% of elongation at break.…”

Section: Axial Stress-strain Responsementioning

confidence: 97%

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Concrete Encased with Engineering Plastics

Abdulla¹

2020

J. Civ. Eng. Constr.

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Engineering plastic tubes are economic alternatives for the advanced composite tubing systems. The mechanical behavior of concrete-encased with engineering plastic tube (CFPT) is examined in the present study by testing short-stub CFPT columns under concentric loading. The test parameters include the plastic tube and coarse aggregate/cement ratio (a/c) ratio. Due to the low stiffness of plastic tubes, the cementitious systems have an important role to increase the stiffness of CFPT. For making concrete of consistent strength, a/c ratio is an important criterion since aggregate constitutes more than 70% of concrete. The proportion of this major component of concrete was altered in increments of 0.5 resulting in twelve mixes with a/c ratios from 3 to 8. Due to the limited test data, the mechanical performance of these structures continues to be pursued through experimental methods. The aim of the present study was to investigate experimentally the relationship between the strength of CFPT and a/c ratio which is also affected by variations in other constituent materials. The a/c ratio was the common variable in both control and CFPT specimens. The experimental results show that the ability of the engineering plastic tube in improving the load capacity of CFPT was considerably affected by the a/c ratio increment which yielded a beneficial effect on the tube confinement capacity.

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Section: Axial Stress-strain Responsementioning

confidence: 97%

“…In an experimental work, the performance of plastic tube (HDPE)-confined self-consolidating concrete under different environmental exposure conditions was examined [14]. A 30% increase in tube thickness yielded up to 50% higher fracture energy.…”

Section: Introductionmentioning

confidence: 99%

Concrete Encased with Engineering Plastics

Abdulla¹

2020

J. Civ. Eng. Constr.

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“…Nevertheless, there are studies of CFTs made of plastic tubes. PVC [23], [24], [66], uPVC [32], [65], [67], HDPE [68], and PE tubes [69] can be used. Plastic tubes offer little axial load capacity due to their low modulus of elasticity and yield strength [70].…”

Section: Figure 3 Type Of Bucklingmentioning

confidence: 99%

Learning About Concrete-Filled Tube Using Chatgpt

Ling¹,

Lim²,

Leong³

et al. 2023

Journal of Civil Engineering

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ChatGPT is an artificial intelligence that can understand context and respond appropriately. It could be used for research on a topic. However, ChatGPT does not always provide accurate information. Its performance has not been tested in engineering fields. In this study, ChatGPT was consulted about concrete-filled tubes (CFT), which is a structural element primarily subjected to axial load. Fifty-eight questions were posted to ChatGPT. ChatGPT's responses (370 sentences) were evaluated. ChatGPT generated plagiarism-free statements, with only a 12% Turnitin similarity index. 78.6% of ChatGPT's sentences were long and complex. Thus, Hemingway Editor gave them a Grade 14 for poor readability. The information given by ChatGPT can be classified as correct, erroneous, contradictory, and unverified. ChatGPT could be used as a research tool, but with limitations. It can explain the basic concepts of CFT but also provide inaccurate and contradictory information. A researcher needs to be cautious while using ChatGPT in research. ChatGPT could be used to test some hypotheses or theories. However, the quality of the output is dependent on the user's critical inputs and an in-depth conversation with ChatGPT.

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“…Concrete is the most used and essential construction material after water all over the world (Güneyisi et al, 2014;Umar et al, 2021;Mermerdaş et al, 2021). Most concrete structures undergo a variety of durability problems within their service of life (Yücel et al, 2020;Kurtoğlu et al, 2018). One of the most important parameters of concrete in the aspect of durability is permeability.…”

Section: Introductionmentioning

confidence: 99%

The effect of cement replacement with eggshell powder on the sorptivity index of concrete

TANYILDIZI

2022

Bitlis Eren University Journal of Science and Technology

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Most concrete structures undergo severe durability issues throughout their service of life. The transition and movement of water through concrete structures is one of the main issues in the aspect of durability. The main aim of this study is to investigate the effect of cement replacement in various ratios with eggshell powder on the sorptivity (capillarity water absorption) capacity of concrete. Eggshell is a bio-waste material obtained from bakers, restaurants, and patisseries. Disposing of this waste material in landfills results in health hazards and causes environmental pollution. The use of eggshell powder in concrete, which is the most used and essential building material after water all over the world, is a beneficial way both minimize the detrimental effects of this waste on living health and the environment and also ensure the sustainability of the materials in concrete. In this paper, five different eggshell powder substitutions as 0%, 5%, 10%, 15%, 20% were employed in experimental analyses. The sorptivity index of concretes was measured at the end of each 5, 10, 15, 30, 45, and 60 minutes. The test results indicated that the sorptivity namely capillary water absorption decreased with up to a level of 5% replacement and increased with the other replacement ratios including 10%, 15%, and 20% when compared with the control concrete’s result. This is attributed to the ESP may act as a better inert filler when replaced with cement up to a level of 5% to reduce the capillary pore, increase the compactness of concrete microstructure, impermeability and restrain the transition of water in the concrete structure.

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Mechanical Investigation and Durability of HDPE-confined SCC Columns Exposed to Severe Environment

Cited by 10 publications

References 40 publications

Concrete Encased with Engineering Plastics

Concrete Encased with Engineering Plastics

Learning About Concrete-Filled Tube Using Chatgpt

The effect of cement replacement with eggshell powder on the sorptivity index of concrete

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