Geopolymers and Fiber-Reinforced Concrete Composites in Civil Engineering

Mahmood, Aamir; Noman, Muhammad Tayyab; Pechočiaková, Miroslava; Amor, Nahla Ben; Petrů, Michal; Abdelkader, Mohamed; Militký, Jiřı́; Sozcu, Sebnem; Hassan, Syed Zameer Ul

doi:10.3390/polym13132099

Cited by 64 publications

(36 citation statements)

References 188 publications

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“…The potential fibre/resin debonding may occur. In addition, the fatigue resistance is a key advantage of textile-based composites compared to the steel materials, that expands the application circle of composites in automobiles, aerospace, oil extraction industry, civil and building industry [7]. A group of researchers worked with the interfacial, mechanical and thermal properties of fibre reinforced composites and reported interesting results [8,9].…”

Section: Introductionmentioning

confidence: 99%

Classification of Textile Polymer Composites: Recent Trends and Challenges

2021

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Polymer based textile composites have gained much attention in recent years and gradually transformed the growth of industries especially automobiles, construction, aerospace and composites. The inclusion of natural polymeric fibres as reinforcement in carbon fibre reinforced composites manufacturing delineates an economic way, enhances their surface, structural and mechanical properties by providing better bonding conditions. Almost all textile-based products are associated with quality, price and consumer’s satisfaction. Therefore, classification of textiles products and fibre reinforced polymer composites is a challenging task. This paper focuses on the classification of various problems in textile processes and fibre reinforced polymer composites by artificial neural networks, genetic algorithm and fuzzy logic. Moreover, their limitations associated with state-of-the-art processes and some relatively new and sequential classification methods are also proposed and discussed in detail in this paper.

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Section: Introductionmentioning

confidence: 99%

Classification of Textile Polymer Composites: Recent Trends and Challenges

2021

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“…The construction industry has been one of the largest consumers of recycled PET for many years [ 11 , 12 , 13 ]. The advantage of using recycled PET waste for construction materials is that it requires minimal pretreatment, which can often be costly, and therefore, a large volume of waste can be recycled at a relatively low cost [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Polyethylene Terephthalate Powder on Hydration of Portland Cement

et al. 2021

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The management of plastic waste is a massive challenge and the recycling of plastics for newer applications is a potential solution. This study investigates the feasibility of using polyethylene terephthalate (PET) powder in cementitious composites. The changes in the strength and microstructure of Portland cement incorporating PET powder with different replacement ratios were systematically analyzed through the measurements of compressive strength, isothermal calorimetry, X-ray diffraction, thermogravimetric analysis, and Raman spectroscopy. In addition, the possible chemical changes of cement paste samples were studied upon exposure to different conditions, including deionized water, seawater, and simulated pore solution. Based on the test results and analysis, no apparent chemical changes were observed in the cement paste samples, regardless of the exposure conditions. In contrast, the PET powder incorporated into concrete exhibited remarkable changes, which may have occurred during the mixing process. The results also suggested that the maximum replacement ratio of PET powder should be less than 10% of the binder (by mass) to minimize its influence on cement hydration, due to the interaction between water and PET. The PET-containing samples showed the presence of calcium aluminate hydrates which were absent in the neat paste sample.

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“…Geopolymers can also be combined with other ecological resources such as natural fibers (sisal, jute etc. ), becoming environmental friendly composites of enhanced mechanical behavior [ 36 ]. There are various possible aluminosilicate sources for geopolymers, such as blast furnace slag, metakaolin, or fly ash [ 21 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

“…), becoming environmental friendly composites of enhanced mechanical behavior [ 36 ]. There are various possible aluminosilicate sources for geopolymers, such as blast furnace slag, metakaolin, or fly ash [ 21 , 36 ]. Many studies also describe various mine wastes-based geopolymers [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Composition and Curing Time on Mechanical Properties of Fluidized Bed Combustion Fly Ash-Based Geopolymer

2021

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This paper presents novel research on a fluidized bed combustion (FBC) fly ash-based geopolymer as a contribution to the problem of FBC fly ash disposal, and a proposal for a new geopolymer composition—an environmentally friendly material that is possible to use in construction. Geopolymer samples of various composition (containing FBC fly ash as the main raw material, metakaolin and CRT glass as additional components, and sodium silicate and sodium hydroxide as activators) were subjected to flexural and compressive strength tests. An investigation on the effect of the demolding time was carried out on one selected mixture. The test showed that both the composition and the demolding time have a decisive influence on the basic mechanical properties. A mixture containing FBC fly ash to metakaolin in a mass ratio of 3:1, removed from the mold after 14 days, was found to be the best in terms of the mechanical parameters expected from a material that could be used in construction, e.g., for the production of precast elements. According to the results obtained, FBC fly ash is a promising and environmentally friendly raw material for the production of geopolymer, with good mechanical properties and low density. Moreover, a high compressive strength can be obtained by curing the geopolymer at ambient temperature.

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Geopolymers and Fiber-Reinforced Concrete Composites in Civil Engineering

Cited by 64 publications

References 188 publications

Classification of Textile Polymer Composites: Recent Trends and Challenges

Classification of Textile Polymer Composites: Recent Trends and Challenges

Influence of Polyethylene Terephthalate Powder on Hydration of Portland Cement

Influence of the Composition and Curing Time on Mechanical Properties of Fluidized Bed Combustion Fly Ash-Based Geopolymer

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