Evaluation of the Properties in the Fresh and Hardened State of a Metakaolin Geopolymeric Mortar Reinforced with Acai Fibers

被引：0

作者：

Oliveira, L. B. ^{[1
]}

Junior, E. R. G. ^{[1
]}

Junior, D. V. A. ^{[1
]}

Junior, J. A. T. L. ^{[1
]}

Marvila, M. T. ^{[2
]}

Monteiro, S. N. ^{[3
]}

Vieira, C. M. F. ^{[1
]}

Azevedo, A. R. G. ^{[4
]}

机构：

[1] UENF State Univ Northern Rio De Janeiro, LAMAV Adv Mat Lab, Ave Alberto Lamego 2000, BR-28013602 Campos Dos Goytacazes, RJ, Brazil

[2] UFV Fed Univ Vicosa, CRP Rio Paranaiba Campus,Rodovia BR 230 KM 7, BR-38810000 Rio Paranaiba, MG, Brazil

[3] IME Military Inst Engn, Dept Mat Sci, Sq Gen Tiburcio 80, BR-22290270 Rio De Janeiro, Brazil

[4] UENF State Univ Northern Rio De Janeiro, LECIV Civil Engn Lab, Ave Alberto Lamego 2000, BR-28013602 Campos Dos Goytacazes, RJ, Brazil

来源：

CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2024 | 2024年

关键词：

Geopolymer; Mortar; Metakaolin; Acai; Natural fiber; FLY-ASH; CONCRETE;

D O I：

10.1007/978-3-031-50304-7_43

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The use of agro-industrial residues in the production of geopolymeric mortars has been a point of growing scientific interest not only for gains in mechanical properties, but also for sustainability. In this context, natural fibers stand out for being biodegradable and having lower energy consumption, availability, low density and low cost when compared to synthetic fibers. The natural fiber from acai is an example of agro-industrial waste generated in large quantities whose disposal is a major environmental problem. Thus, the objective of this work was to produce a metakaolin geopolymeric mortar with the addition of acai fibers at 1 and 2% in relation to the mass of the precursor, with fibers not treated and treated with 5 and 10% of NaOH. Then, the samples were tested in the hardened state with resistance to flexion and compression tests and in the fresh state by the Vicat and dropping-ball tests.

引用

页码：447 / 455

页数：9

共 11 条

[1] Properties of hybrid geopolymer concrete prepared using rice husk ash, fly ash and GGBS with coconut fiber
Abbass, Mahapara
Singh, Digvijay
Singh, Gyanendra
[J]. MATERIALS TODAY-PROCEEDINGS, 2021, 45 : 4964 - 4970
[2] Effect of Coir Fiber Reinforcement on Properties of Metakaolin-Based Geopolymer Composite
Ayeni, Olugbenga
Mahamat, Assia Aboubakar
Bih, Numfor Linda
Stanislas, Tido Tiwa
Isah, Ibrahim
Junior, Holmer Savastano
Boakye, Emmanuel
Onwualu, Azikiwe Peter
[J]. APPLIED SCIENCES-BASEL, 2022, 12 (11):
[3] Impact of fiber reinforcements on properties of geopolymer composites: A review
Farhan, Khatib Zada
Johari, Megat Azmi Megat
Demirboga, Ramazan
[J]. JOURNAL OF BUILDING ENGINEERING, 2021, 44
[4] Mechanical and durability properties of natural fiber-reinforced geopolymers containing lead smelter slag and waste glass sand
Gholampour, Aliakbar
Danish, Aamar
Ozbakkaloglu, Togay
Yeon, Jung Heum
Gencel, Osman
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2022, 352
[5] Sustainable geopolymer composites reinforced with flax tows
Lazorenko, Georgy
Kasprzhitskii, Anton
Kruglikov, Alexander
Mischinenko, Vasilii
Yavna, Victor
[J]. CERAMICS INTERNATIONAL, 2020, 46 (08) : 12870 - 12875
[6] Development of a complementary precursor based on flue gas desulfurization (FGD) for geopolymeric pastes produced with metakaolin
Oliveira, Leandro B.
Marvila, Markssuel T.
Fediuk, Roman
Vieira, Carlos Mauricio F.
Azevedo, Afonso R. G.
[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 22 : 3489 - 3501
[7] Activated carbon obtained from amazonian biomass tailings (acai seed): Modification, characterization, and use for removal of metal ions from water
Queiroz, Leandro S.
de Souza, Luiz K. C.
Thomaz, Kelly Taise C.
Leite Lima, Erika Tallyta
da Rocha Filho, Geraldo N.
do Nascimento, Luis Adriano S.
de Oliveira Pires, Luiza H.
Freitas Faial, Kelson do Carmo
da Costa, Carlos E. F.
[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2020, 270
[8] The Effects of Nanosilica on Mechanical Properties and Fracture Toughness of Geopolymer Cement
Rahmawati, Cut
Aprilia, Sri
Saidi, Taufiq
Aulia, Teuku Budi
Hadi, Agung Efriyo
[J]. POLYMERS, 2021, 13 (13)
[9] Vegetable fibers behavior in geopolymers and alkali-activated cement based matrices: A review
Santana, Henrique A.
Amorim Junior, Nilson S.
Ribeiro, Daniel V.
Cilla, Marcelo S.
Dias, Cleber M. R.
[J]. JOURNAL OF BUILDING ENGINEERING, 2021, 44
[10] Natural fiber reinforced high calcium fly ash geopolymer mortar
Wongsa, Ampol
Kunthawatwong, Ronnakrit
Naenudon, Sakchai
Sata, Vanchai
Chindaprasirt, Prinya
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2020, 241

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