Numerical analysis and experimental validation of reinforced foamed concrete beam containing partial cement replacement

Rahman, Amirul Faiz; Goh, Wan Inn; Mohamad, Noridah; Kamarudin, M. Sufian; Jhatial, Ashfaque Ahmed

doi:10.1016/j.cscm.2019.e00297

Cited by 15 publications

(15 citation statements)

References 15 publications

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“…The section of the reinforcement was assigned 460 MPa and the strength and failure properties proposed by Borvik et al (2001), have been considered in the present study, however the yield strength of the steel reinforcement was 340 MPa taken by Soheyli et al (2016). The concrete damaged plasticity model is also used to define the behavior of concrete (Senthil et al, 2020), SFRC (An et al, 2012), and FC-POFA-ES (Rahman et al, 2019). The concrete damaged plasticity model parameters of concrete, FC-POFA-ES material, SFRC, and Soil are shown in Table 1.…”

Section: Finite Element Modelingmentioning

confidence: 99%

“…The Drucker Prager Model yield is circular, from the center to the yield surface it is equidistance and the properties of soil is also shown in the Table 1. The tensile and compressive behavior of concrete and soil by Senthil et al (2020), SFRC (An et al, 2012), and FC-POFA-ES (Rahman et al, 2019) is shown in Figure 2. The cohesive behavior such as normal stiffness, shear stiffness, (Senthil et al, 2020), (b) FC-POFA-ES (Rahman et al, 2019), (c) SFRC (An et al, 2012), and (d) enlarged view of compressive behavior of SFRC (An et al, 2012).…”

Section: Finite Element Modelingmentioning

confidence: 99%

“…The tensile and compressive behavior of concrete and soil by Senthil et al (2020), SFRC (An et al, 2012), and FC-POFA-ES (Rahman et al, 2019) is shown in Figure 2. The cohesive behavior such as normal stiffness, shear stiffness, (Senthil et al, 2020), (b) FC-POFA-ES (Rahman et al, 2019), (c) SFRC (An et al, 2012), and (d) enlarged view of compressive behavior of SFRC (An et al, 2012). and tensile strength were 315, 82, and 1 MPa respectively, also defined between tunnel and soil as contact property.…”

Section: Finite Element Modelingmentioning

confidence: 99%

See 2 more Smart Citations

Mitigation strategies of underground tunnels against blast loading

Senthil

Sethi

Pelecanos

et al. 2021

International Journal of Protective Structures

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An evaluation of mitigation strategies of underground tunnels against explosions is important to the society. Therefore, a small scale tunnel was modeled against blast loading using finite element software ABAQUS. The inelastic behavior of concrete and steel bar has been incorporated through concrete damage plasticity model and Johnson-cook models respectively, available in ABAQUS. The Drucker-Prager model as well as acoustic infinite medium have been used to model the damage behavior of soil and tunnel respectively. The simulated results thus obtained from the present study were compared with the experimental results available in the literature and found in good agreement. Further, the simulations were carried to predict the damage intensity in tunnel in terms of acceleration, impulse velocity, displacement, and Mises stresses. There are many parameters which were taken into consideration to assess the mitigation strategies for the underground tunnels. The critical parameters include the influence of tunnel shapes, lining materials, lining thickness, burial depth of the tunnels, inclusion of a barrier in between the blast source-the tunnel and layered configuration of tunnel lining, and were considered to evaluate the mitigation strategy. It was concluded that the square shape of tunnel was most vulnerable as compared to circular and U-shaped tunnels. It was also concluded that plain concrete monolithic lining as well as layered configuration consisting of Dytherm foam layer between Steel Fiber reinforced Concrete layers, was found to be more vulnerable among the chosen lining materials. Also, the thickness of lining and burial depth of the tunnel found to be a significant role against blast loading.

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Section: Finite Element Modelingmentioning

confidence: 99%

Section: Finite Element Modelingmentioning

confidence: 99%

Section: Finite Element Modelingmentioning

confidence: 99%

See 1 more Smart Citation

Mitigation strategies of underground tunnels against blast loading

Senthil

Sethi

Pelecanos

et al. 2021

International Journal of Protective Structures

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“…Earlier studies on the addition of eggshell powder in cementitious composites have revealed that partially replacing cement with eggshell powder leads to an increase in compressive strength up to a level of 5% eggshell substitution by weight of cement (13)(14)(15)(16)(17). The reduction in strength that is observed at higher eggshell powder contents is attributed to the dilution of cement within the composition (18).…”

Section: Introductionmentioning

confidence: 99%

Application of novel synthesized nanocomposites containing κ-carrageenan/PVA/eggshell in cement mortars

et al. 2020

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This study is a preliminary attempt to present the preparation and the first time a κ-carrageenan/PVA/eggshell nanostructure is used as a novel biodegradable and homogeneous nanostructure in cement composition. In order to clearly understand the effects these additives have on the mechanical properties of cementitious composites, they were synthesized in double and triple combinations and added into mortar mixtures. Three different cement mortar specimens were prepared by integrating the additives in ratios of 0, 0.1, 0.5 and 1% by cement weight and flexural and compressive strengths of the specimens were determined at the ages of 7 and 28 days. The flowability of the presented nanostructures was also discussed. The results revealed a 10–11% increase in both compressive and flexural strengths for the specimens prepared with the triple combination of the proposed additives. Moreover, strain capacity was enhanced as a result of the efficient dispersion of additives in the cement matrix.

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“…1 Illustration of the UHI effect in an urban area [13] the global CO 2 emissions [14]. Nowadays, to reduce the dependency of cement, researchers have focused ecofriendly concrete by utilizing supplementary cementitious materials (SCMs) especially waste by-products as partial replacement of cement [15]. The utilization of agricultural wastes as cement replacement is an innovative way to reduce the production of cement as well as produce green and sustainable concrete.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Investigation of Thermal Behavior of Lightweight Foamed Concrete Incorporating Palm Oil Fuel Ash and Eggshell Powder

Jhatial

Goh

Sohu

et al. 2020

Period. Polytech. Civil Eng.

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This study was performed to investigate the thermal and mechanical properties of foamed concrete when supplementary cementitious materials (SCMs) are utilized. Sustainable foamed concrete of 1800 kg/m3 dry density was prepared by incorporating Palm Oil Fuel Ash (POFA) ranging from 30 % to 35 % and Eggshell Powder (ESP) from 5 % to 15 % as SCMs. It was found that the combined utilization of POFA and ESP in the foamed concrete produced favorable results by reducing the thermal conductivity up to 42.68 % compared to the control sample, thus enhanced thermal insulating property of foamed concrete. This study confirmed that recycling and reusing of POFA and ESP are possible in foamed concrete which could be used for non-structural applications where thermal insulating is required.

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Numerical analysis and experimental validation of reinforced foamed concrete beam containing partial cement replacement

Cited by 15 publications

References 15 publications

Mitigation strategies of underground tunnels against blast loading

Mitigation strategies of underground tunnels against blast loading

Application of novel synthesized nanocomposites containing κ-carrageenan/PVA/eggshell in cement mortars

Preliminary Investigation of Thermal Behavior of Lightweight Foamed Concrete Incorporating Palm Oil Fuel Ash and Eggshell Powder

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