The effect of the alkaline solution content on the mechanical properties of MK-based PVA fiber-reinforced geopolymers

Borges, Paulo Henrique Ribeiro; Bhutta, Aamer; Bavuzo, Luiggi Teixeria; Banthia, Nemkumar

doi:10.14382/epitoanyag-jsbcm.2017.3

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…During curing in solution, they undergo distinct processes of formation via: (a) dissolution, (b) polycondensation; and (c) precipitation 3,4 . Several designs have been evaluated in the literature, 2,3,5,6 and their main formulation is based on M 2 O•Al 2 O 3 •xSiO 2 •yH 2 O 1,5 ; where M represents the alkali (Na or K); and x and y are determined according to the molar ratios desired. Their applications have been growing in recent years, encompassing different purposes and markets, such as: (a) fire‐resistant structures; 3,7 (b) nuclear waste encapsulation 4,7 ; (c) alternatives to cement‐based materials 8,9 …”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of K‐geopolymers reinforced with silane‐coated basalt fibers

2020

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Geopolymers are a well-known class of amorphous ceramic materials based on inorganic-polymers with high contents of alumina and silica (made from metakaolin and fumed silica). 1,2 They are manufactured under ambient temperatures through the combination of the aluminosilicate source with an alkali solution, based on Na or K, in a SiO 2 environment. 1,3 During curing in solution, they undergo distinct processes of formation via: (a) dissolution, (b) polycondensation; and (c) precipitation. 3,4 Several designs have been evaluated in the literature, 2,3,5,6 and their main formulation is based on M 2 O•Al 2 O 3 •xSiO 2 •yH 2 O 1,5 ; where M represents the alkali (Na or K); and x and y are determined according to the molar ratios desired. Their applications have been growing in recent years, encompassing different purposes and markets, such as: (a) fire-resistant structures; 3,7 (b) nuclear waste encapsulation 4,7 ; (c) alternatives to cement-based materials. 8,9

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Section: Introductionmentioning

confidence: 99%

Mechanical behavior of K‐geopolymers reinforced with silane‐coated basalt fibers

2020

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“…The specimens containing fibres exhibited higher fracture toughness and ductility. Xu et al [24] Borges et al [54] blended MK with SF to reach molar ratios of 3, 3.4 and 3.8. The composites were mixed with very fine sand and activated with NaOH and sodium silicate solutions.…”

Section: Blended Geopolymersmentioning

confidence: 99%

“…Borges et al [54] blended MK with SF to reach molar ratios of 3, 3.4 and 3.8. The composites were mixed with very fine sand and activated with NaOH and sodium silicate solutions.…”

Section: Pva Fibresmentioning

confidence: 99%

The effect of polypropylene, polyvinyl-alcohol, carbon and glass fibres on geopolymers properties

Rashad

2019

Materials Science and Technology

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Recently, the inclusion of different types of fibres into geopolymers, as reinforcement, has amplified due to the rapid increase in geopolymers developments. In spite of geopolymers have prospective properties such as low carbon footprint, low consumption of energy, good compressive strength, resistance to fire, resistance to flame, resistance to corrosion and good durability, they undergo from low tensile strength and flexural strength. To avoid these shortages, different types of fibres could be incorporated into geopolymers to enhance their toughness, tensile strength and ductility. The current survey aims to review the effect of different types of fibres named polypropylene (PP), polyvinyl alcohol (PVA), carbon and glass fibres on the fresh and hardened properties of geopolymers.

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Optimization of Mechanical Properties and Embodied Energy of Polyvinyl Alcohol Fiber-Reinforced High-Strength Alkali-Activated Slag Mortars: Comparative Study

Öz

2023

J. Mater. Civ. Eng.

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The effect of the alkaline solution content on the mechanical properties of MK-based PVA fiber-reinforced geopolymers

Cited by 4 publications

References 19 publications

Mechanical behavior of K‐geopolymers reinforced with silane‐coated basalt fibers

Mechanical behavior of K‐geopolymers reinforced with silane‐coated basalt fibers

The effect of polypropylene, polyvinyl-alcohol, carbon and glass fibres on geopolymers properties

Optimization of Mechanical Properties and Embodied Energy of Polyvinyl Alcohol Fiber-Reinforced High-Strength Alkali-Activated Slag Mortars: Comparative Study

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