Application of Taguchi method for optimization of concrete strengthened with polymer after high temperature

Tanyıldızı, Harun; Şahin, Murat

doi:10.1016/j.conbuildmat.2015.01.039

Cited by 69 publications

(27 citation statements)

References 40 publications

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“…This observation was supported during the morphological analysis since the fracture surface of the green composites showed a large gap between the lignocellulosic fillers and the biopolyester matrix and also several cavities due to particle debonding during fracture. Future research works should be thus addressed to optimize the waste derived filler content by means of new methodologies such as the Kalman filter algorithm [74] or the Taguchi method [75], whereas the surface treatment of the fillers can also be explored. Interestingly, the addition during melt compounding at 2.5 phr or 5 phr of composite of the two tested multi-functionalized oils derived from linseed successfully improved the toughness and thermal stability of the pieces.…”

Section: Discussionmentioning

confidence: 99%

Valorization of Linen Processing By-Products for the Development of Injection-Molded Green Composite Pieces of Polylactide with Improved Performance

et al. 2020

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This work reports the development and characterization of green composites based on polylactide (PLA) containing fillers and additives obtained from by-products or waste-streams from the linen processing industry. Flaxseed flour (FSF) was first produced by the mechanical milling of golden flaxseeds. The resultant FSF particles were melt-compounded at 30 wt% with PLA in a twin-screw extruder. Two multi-functionalized oils derived from linseed, namely epoxidized linseed oil (ELO) and maleinized linseed oil (MLO), were also incorporated during melt mixing at 2.5 and 5 parts per hundred resin (phr) of composite. The melt-compounded pellets were thereafter shaped into pieces by injection molding and characterized. Results showed that the addition of both multi-functionalized linseed oils successfully increased ductility, toughness, and thermal stability of the green composite pieces whereas water diffusion was reduced. The improvement achieved was related to both a plasticizing effect and, more interestingly, an enhancement of the interfacial adhesion between the biopolymer and the lignocellulosic particles by the reactive vegetable oils. The most optimal performance was attained for the MLO-containing green composite pieces, even at the lowest content, which was ascribed to the higher solubility of MLO with the PLA matrix. Therefore, the present study demonstrates the potential use of by-products or waste from flax (Linum usitatissimum L.) to obtain renewable raw materials of suitable quality to develop green composites with high performance for market applications such as rigid food packaging and food-contact disposable articles in the frame of the Circular Economy and Bioeconomy.

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Section: Discussionmentioning

confidence: 99%

Valorization of Linen Processing By-Products for the Development of Injection-Molded Green Composite Pieces of Polylactide with Improved Performance

et al. 2020

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“…Taguchi method has been successfully used by various authors for similar purposes for various materials in civil engineering and other fields: Mohebi et al applied Taguchi method to design abrasion‐resistive, alkali‐activated slag concrete. Kumar et al used Taguchi method to optimize biodiesel production from Manilkara zapota (L.) seed oil. Tanyildizi et al applied Taguchi method to optimize the strength of polymer concrete. Panagiotopoulou et al applied Taguchi method to optimize the composition of alkali‐activated fly ash binders. Joshaghani et al used Taguchi method to design optimal mixture of pervious concrete pavement. Yuan et al used Taguchi method to design ternary activator‐activated slag to obtain optimal product properties. Onoue et al optimized the shock‐absorbing capability of lightweight concrete incorporating with volcanic pumice aggregate using Taguchi method; Bagheri et al used Taguchi method to optimize the compressive strength of geopolymers combined with fly ash and granulated blast furnace slag aggregates. …”

Section: Methodsmentioning

confidence: 99%

Optimizing the ultimate strength of precast reinforced concrete pipes in three‐edge bearing tests

Chao

Kuo

2017

Structural Concrete

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By utilizing Taguchi method, this paper presents a simplified approach that aims at developing technical recommendations of control factors of reinforcement and concrete for steel wire reinforced concrete pipes (SWRCP). For this purpose, the structural behaviors of full scale of 400 and 600 mm inside diameter SWRCPs were analyzed. Three control factors, namely wire diameter (dw), wire winding pitch (pw), and water/cement ratio of concrete (w/c of concrete) were designed in an L9 orthogonal array. The best possible levels were determined for maximization of crushing load (Fcr) and ultimate load (Fu) in three‐edge bearing tests and minimization of crack width (Wcr). Based on the results, the economical and optimal control factors of dw, pw, and w/c of concrete for SWRCPs with inside diameter of 400 mm are 6.5 mm, 100 mm, and 33.5%, respectively. For SWRCPs with inside diameter of 600 mm, the optimal control factors of dw, pw, and w/c of concrete are 6.5 mm, 33 mm, and 33.5%, respectively. In addition, by the use of analysis of variance, the contribution percentages of control factors were obtained and were used as the most effective factors on the Fcr, Fu, and Wcr for SWRCPs. Through the implementation of the study, this paper concludes a practical and significant overall idea of designing SWRCPs for pipe manufacturing industry.

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“…The input parameters of experiments, designed by the Taguchi orthogonal arrays, give the optimum results according to the function described above. 33 The Taguchi method is quite different than usual engineering approaches and has many preferences because this method uses special groups of orthogonal arrays for design of experiments that minimize the costs and number of tests. 29 The effect of each parameter (main effect) can be explained simultaneously in the Taguchi method.…”

Section: Design Of Experimentsmentioning

confidence: 99%

“…27 It is possible to identify non-significant variables by the Taguchi method. 33 This method is based on an orthogonal array of experiments. An orthogonal array is a minimal set of experiments with various combinations of parameter levels.…”

Section: Design Of Experimentsmentioning

confidence: 99%

The buckling strength of the new hybrid nanocomposite laminates using combination of layered and particulate nano fillers

Rostamiyan

Azadi

2016

Advances in Mechanical Engineering

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This article experimentally investigates the buckling strength of carbon fiber-reinforced polymer laminates. Samples were made with 16 layers of carbon fibers in four orientations of 0°, 30°, 60°, and 90°. Nano silica (SiO 2 ) and nano clay were used as fillers for enhancement of the buckling strength of carbon fiber-reinforced polymer laminates. The Taguchi method was used for design of experiments and optimizing the three input factors: nano silica, nano organoclay, and carbon fiber orientation. From the results, first, it was found that the most buckling strength belonged to the samples with the fiber orientation of 0°and the minimum strength belonged to the composite laminates with the 90°orientation of carbon fiber. Second, the use of two nano fillers in quaternary laminates (epoxy/carbon fiber/silica/clay) has increased the buckling strength of laminates about 45.5% and 22.5% in comparison with binary and ternary laminates, respectively. The binary laminates were made from carbon fiber/epoxy resin and the ternary laminates included carbon fiber/clay/epoxy. Third, the elastic modulus of laminates increased with an increase in the nano SiO 2 content. The most effective parameters according to the analysis of variance results were as follows: carbon fiber orientation, nano silica, and nano organoclay, with a probability value of 99%, 95%, and 90%, respectively. Finally, the analytical analysis was done according to the classical laminated plate theory for obtaining the buckling force and verifying and comparing the results with experimental buckling tests. The results obtained from classical laminated plate theory for two certain laminates were in excellent agreement with those obtained from experimental results.

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Application of Taguchi method for optimization of concrete strengthened with polymer after high temperature

Cited by 69 publications

References 40 publications

Valorization of Linen Processing By-Products for the Development of Injection-Molded Green Composite Pieces of Polylactide with Improved Performance

Valorization of Linen Processing By-Products for the Development of Injection-Molded Green Composite Pieces of Polylactide with Improved Performance

Optimizing the ultimate strength of precast reinforced concrete pipes in three‐edge bearing tests

The buckling strength of the new hybrid nanocomposite laminates using combination of layered and particulate nano fillers

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