The Applicability of TOPSIS- and Fuzzy TOPSIS-Based Taguchi Optimization Approaches in Obtaining Optimal Fiber-Reinforced Concrete Mix Proportions

Warda, M; Ahmad, Seleem; Mahdi, Ibrahim M.; Sallam, Hossam El-Din M.; Khalil, H Shakir

doi:10.3390/buildings12060796

Cited by 10 publications

(8 citation statements)

References 44 publications

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“…It is well known that there is an inverse relationship between W/(C+SF) ratio and strengths. The results coming from this research agree with the aforementioned fact that for the compressive strengths and splitting, tensile strengths increased with the reduction of the W/(C+SF) ratio, such as [21,28]. PP fiber of 0.317 gave the optimum mix at room temperature and 400 °C for the splitting tensile strength.…”

Section: Optimizing the Effect Of W/(c+sf) Ratio Sf And Pp Fiber At D...supporting

confidence: 88%

Experimentally evaluation of high-performance concrete mixes used for tunnels and containing silica fume and polypropylene fiber after exposed to high temperatures

Elmesiri¹,

Ahmed²,

Bneni

et al. 2022

Frattura Ed Integrità Strutturale

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This work introduces an experimental study to evaluate the effect of elevated temperatures on the mechanical properties of high-performance concrete (HPC) mix with changes in Water-Cementitious ratios, W/(C+SF), Silica Fume percent, SF, and Polypropylene, PP, fiber contents. This mix was typically designed to satisfy the requirements of tunnel concrete. The compressive and indirect tensile strengths were measured at room temperature, RT, and after exposure to 400°C and 800°C. Moreover, SEM micrograph and EDS spot analysis tests were done to evaluate the effect of elevated temperatures. Fifteen mixes of HPC with different ratios of W/(C+SF), SF, and PP fiber were tested. According to the test results, the compressive strength values of design mixes increased significantly after exposure to 400°C. Moreover, using SF = 10%, the results indicated remarkable improvements in the compressive strength at 400°C and 800°C, in the case of the W/(C+SF) ratio of 0.31. On the other hand, the highest effect of the presence of PP fibers was 0.211, depending on variable ratios of the W/(C+SF) ratio and the SF content. In the case of PP=0.106 and SF=10%, the mass loss was higher at exposure to temperatures of 800°C.

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Section: Optimizing the Effect Of W/(c+sf) Ratio Sf And Pp Fiber At D...supporting

confidence: 88%

Experimentally evaluation of high-performance concrete mixes used for tunnels and containing silica fume and polypropylene fiber after exposed to high temperatures

Elmesiri¹,

Ahmed²,

Bneni

et al. 2022

Frattura Ed Integrità Strutturale

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“…By decreasing the requirement for cement, using supplemental cement ingredients like SF and FA has a favorable impact on energy, economical, and environmental considerations in the concrete industry (Dong et al, 2015;Hossain et al, 2016;Liu et al, 2017;de Matos et al, 2020;Kumar et al, 2021a;Alaloul et al, 2021;Çelik et al, 2022). Optimizing concrete mixes using supplementary content is another important consideration in literature (AlShareedah and Nassiri, 2021;Bhuva and Bhogayata, 2022;Wang et al, 2022b;Chen et al, 2022;Rezazadeh Eidgahee et al, 2022;Siamardi, 2022;Solouki et al, 2022;Sun et al, 2022;Warda et al, 2022). As an example, the mechanical characteristics of FA-SF plain concrete (FA-SPC) and FA SF coconut fiber reinforced concrete (FA-SCFRC) are examined in Khan and Ali's study (Khan and Ali, 2019).…”

Section: Introduction 1general Research Backgroundmentioning

confidence: 99%

Global warming potential-based life cycle assessment and optimization of the compressive strength of fly ash-silica fume concrete; environmental impact consideration

Onyelowe

Ebid

Riofrio

et al. 2022

Front. Built Environ.

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In this research study, extensive literature searches on the compressive strength of concrete produced from the addition of fly ash (FA) and silica fume (SF) as extra constituents to the conventional concrete mixes, which gave rise to 330 mix points of concrete database. Due to the worrisome environmental impact of concrete production and usage in concrete activities, it has been pertinent to conduct the life cycle impact assessment of this procedure. Secondly, due to the over dependence of concrete production experts on laboratory exercise, there is also an urgent need to propose equations that reduce this dependence, that can be used in design, construction and performance evaluation of concrete infrastructure, hence the multi-objective nature of this research work. The results of the global warming potential (GWP) based on cement dosage show that Portland cement contributes about 90% of the total score. This is followed by the use of coarse aggregate contributing 6%, superplasticizer, 3% and fine aggregates, 2%. These show the functions of CO2 emissions and other greenhouses gas emissions in the entire system. Also, the result of the terrestrial acidification potential (TAP) for the concrete mixes in this study show that the lowest cement mix “C340-FAg658-FA0-SF15ˮ has a human toxicity, both carcinogenic and non-carcinogenic that showed an added impact of about 14 kg of 1, 4 equivalents of dichlorobenzene (DCB eq.). This result is 428% less impact than other studies found in the literature that used FA. Finally, it was found that the addition of FA and SF in concrete has a lowering effect on the environmental impact indicators due to reduced cement dosage. Furthermore, the results of the model predictions show that ANN with a performance index of 0.986 (4.8%) showed decisive superiority to predict the compressive strength of the FA-SF concrete over EPR, 0.951 (8.7%), GP, 0.94 (9.5%) and GEP, 0.93 (10%).

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“…where V p is the cumulative invasion volume of mercury under pressure P, r is the pore radius of the concrete specimen, and D is the fractal dimension. The pore volume of concrete was measured using the MIP method, and the fundamental principle was expressed using the Washburn equation and calculated using Equation (7):…”

Section: Fractal Dimensionmentioning

confidence: 99%

“…Incorporating different materials to improve the abrasion resistance of concrete is the most effective and widely used method in engineering [2][3][4][5][6]. Combined with the form and process of concrete being damaged by abrasion, the materials currently used are mainly through the following three ways: (1) Improve the strength of concrete cement paddle by adding mineral admixtures to form a harder cement shell to resist the damage of highspeed sand-containing water flow, such as silica fume concrete, high-strength concrete, HF concrete, and a series of concrete materials [7]. These concrete materials often have a considerable increase in compressive strength while the abrasion resistance is improved as well.…”

Section: Introductionmentioning

confidence: 99%

The Counterbalance of the Adverse Effect of Abrasion on the Properties of Concrete Incorporating Nano-SiO2 and Polypropylene Fiber Based on Pore Structure Fractal Characteristics

et al. 2022

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Abrasion damage is a typical hydraulic structure failure and considerably impacts the durability of buildings. In severe circumstances, it can even prevent hydraulic structures from being used and operated normally. Thus, it is essential to research abrasion-resistant hydraulic systems that are more durable, inexpensive, safe, and ecologically friendly, given its unavoidable characteristics. In this context, five dosages of nano-SiO2 and three dosages of fibers are selected to evaluate and analyze the modification effect of nano-SiO2 and polypropylene fibers on the abrasion resistance of concrete. The evolution of the concrete properties was characterized based on the abrasion resistance strength. Moreover, the mineralogical composition and microstructure characterization were investigated through X-ray diffraction and scanning probe microscope. Mercury intrusion porosimetry was applied to determine the pore-structure parameters of concrete, such as pore-size distribution and the fractal characteristics. The results indicate that nano-SiO2 improves the abrasion resistance of concrete by densifying the pore structure and promoting the formation of hydration products. Results reveal that the excessive dosage of fibers agglomerates in the concrete to form an unsubstantial pore structure due to poor dispersibility. The fractal dimension of the pore structure exhibits a close relationship with the abrasion resistance strength of concrete. The implications of these findings inform the design of abrasion and erosion resistance for hydraulic engineering structures.

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The Applicability of TOPSIS- and Fuzzy TOPSIS-Based Taguchi Optimization Approaches in Obtaining Optimal Fiber-Reinforced Concrete Mix Proportions

Cited by 10 publications

References 44 publications

Experimentally evaluation of high-performance concrete mixes used for tunnels and containing silica fume and polypropylene fiber after exposed to high temperatures

Experimentally evaluation of high-performance concrete mixes used for tunnels and containing silica fume and polypropylene fiber after exposed to high temperatures

Global warming potential-based life cycle assessment and optimization of the compressive strength of fly ash-silica fume concrete; environmental impact consideration

The Counterbalance of the Adverse Effect of Abrasion on the Properties of Concrete Incorporating Nano-SiO2 and Polypropylene Fiber Based on Pore Structure Fractal Characteristics

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