The mechanical properties of flax and hemp fibres reinforced geopolymer composites

Korniejenko, Kinga; Łach, Michał; Hebdowska-Krupa, Maria; Mikuła, Janusz

doi:10.1088/1757-899x/379/1/012023

Cited by 30 publications

(22 citation statements)

References 19 publications

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“…The flax fibers were added in an amount: 4 -10 wt%. The research results pointed out that mechanical properties are improved by fiber addition, especially flexural strength [17,23]. The other research shows the possibility of using the geopolymers reinforced by short flax fibers in additive manufacturing technology [24][25][26].…”

Section: Introductionmentioning

confidence: 89%

“…Contemporary, the flax is one of the most popular fibers used as reinforcement to geopolymer matrix [17]. The research was made on the matrix based on dehydroxylated kaolinite-type clay (New Zealand halloysite -Imerys Premium grade) [18], low calcium fly ash (from the Eraring power station in NSW) [19][20], fly ash with nano-clay particles [21][22].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Flax Fiber Reinforcement on Mechanical Properties of Solid and Foamed Geopolymer Concrete

Korniejenko

Łach

Hebdowska-Krupa

et al. 2020

Adv. technol. innov.

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The main objective of this study is to develop the advanced composites for civil engineering applications as material for the building industry, especially for an insulation purpose. The research processes include several steps. Firstly, the prototype elements, such as bricks and elevation elements were performed from eco-friendly composite -flax fiber reinforced geopolymer. The elements were designed to take into consideration for environment. Geopolymers are environmentally friendly, sustainable, and resource efficient, including energy demand. Next, the wall was built from these elements and exposed during the three months in a relevant environment. The main conclusion of the research is that the kind of fibers is important for the mechanical properties of the composite, including the fact that for those different fibers could be more beneficial for different raw materials, giving higher strength properties. The significant influence on the mechanical properties of the composites has the adhesion between fiber and material used as a matrix. The adhesion depends among others on the previous treatment of the fibers.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Impact of Flax Fiber Reinforcement on Mechanical Properties of Solid and Foamed Geopolymer Concrete

Korniejenko

Łach

Hebdowska-Krupa

et al. 2020

Adv. technol. innov.

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“…The problem of the cracks required introducing the additives to the geopolymer. It could be for example fibers addition that reduced the brittle material behavior (Korniejenko et al, 2018;Nematollahi et al, 2018;Silva et al, 2020).…”

Section: D Printing Of Small Scale Elementsmentioning

confidence: 99%

Development of 3D Printing Technology for Geopolymers

Korniejenko¹,

Łach²,

Mikuła³

et al. 2020

XV International Conference on Durability of Building Materials and Components. eBook of Proceedings

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“…Despite this fact, the authors stress the environmental benefits -reduce the carbon footprint, connected with using the natural fibres (the use of at least 8% hemp fibres leads to carbon negative emissions -19.7 kg CO2eq m -3 ) [50]. The research with hemp addition has also been made in the framework of the ERANet-LAC project, they show that hemp could be valuable addition to geopolymer matrix, but the properties depend on the amount and form of fibres [48].…”

mentioning

confidence: 99%

“…The research results pointed improving mechanical properties by fibre addition, especially flexural strength. Also the research conducted in the framework of the ERANet-LAC project shows that flax is promising reinforcement for geopolimers based on clay as well as fly-ash [47,48].…”

mentioning

confidence: 99%

The overview of mechanical properties of short natural fiber reinforced geopolymer composites

Korniejenko

Łach

Sağlamtimur

et al. 2020

Environmental Research and Technology

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In the EU there is a pressing need for the change of the current economy into a so-called circular economy in recent years. The rational management of natural resources and the use of waste materials are becoming more and more important. It is also supported by the growing ecological awareness of society, including the consciousness of sustainable development. Nowadays, it is the construction industry that has the most significant impact on pollution. Therefore, numerous attempts are made to reduce energy consumption and the amount of waste generated by it. These are the main issues stimulating the research on new innovative materials such as geopolymer composites. They have a significantly lower carbon footprint than traditional construction materials. Moreover, the synthesis of geopolymers requires 2-3 times less energy than traditional Portland cement, not to mention the fact that 4-8 times less CO2 is generated. In addition, the above process has another environmental benefit i.e. the possibility of using anthropogenic raw materials (minerals) such as slags and fly ashes for the production. One of the limitations for the wide use of such materials is their relatively low brittle fracture behaviour. Nowadays, one of the most important research areas is the improvement of their mechanical properties. To improve the mechanical properties it is possible to reinforce the matrix by fibres addition, especially natural fibres that are renewable resources. The main objective of the article is to analyse the mechanical properties of new composites and assessment the possibility to replace traditional building materials within eco-friendly alternatives.

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The mechanical properties of flax and hemp fibres reinforced geopolymer composites

Cited by 30 publications

References 19 publications

Impact of Flax Fiber Reinforcement on Mechanical Properties of Solid and Foamed Geopolymer Concrete

Impact of Flax Fiber Reinforcement on Mechanical Properties of Solid and Foamed Geopolymer Concrete

Development of 3D Printing Technology for Geopolymers

The overview of mechanical properties of short natural fiber reinforced geopolymer composites

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