Ildiko, Merta

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Author's Bibliography

The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars

Ildiko, Merta; Poletanović, Bojan; Dragaš, Jelena; Carević, Vedran; Ignjatović, Ivan; Komljenović, Miroslav

(MDPI, 2022) 

TY  - JOUR
AU  - Ildiko, Merta
AU  - Poletanović, Bojan
AU  - Dragaš, Jelena
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2663
AB  - The physical and mechanical properties of hemp-fibre-reinforced alkali-activated (AA) mortars under accelerated carbonation were evaluated. Two matrices of different physical and chemical properties, i.e., a low Ca-containing and less dense one with fly ash (FA) and a high Ca-containing and denser one with FA and granulated blast furnace slag (GBFS), were reinforced with fibres (10 mm, 0.5 vol% and 1.0 vol%). Under accelerated carbonation, due to the pore refinement resulting from alkali and alkaline earth salt precipitation, AA hemp fibre mortars markedly (20%) decreased their water absorption. FA-based hemp mortars increased significantly their compressive and flexural strength (40% and 34%, respectively), whereas in the denser FA/GBFS matrix (due to the hindered CO2 penetration, i.e., lower chemical reaction between CO2 and pore solution and gel products), only a slight variation (±10%) occurred. Under accelerated carbonation, embrittlement of the fibre/matrix interface and of the whole composite occurred, accompanied by increased stiffness, decreased deformation capacity and loss of the energy absorption capacity under flexure. FA-based matrices exhibited more pronounced embrittlement than the denser FA/GBFS matrices. A combination of FA/GBFS-based mortar reinforced with 0.5 vol% fibre dosage ensured an optimal fibre/matrix interface and stress transfer, mitigating the embrittlement of the material under accelerated carbonation.
PB  - MDPI
T2  - Polymers
T1  - The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars
SP  - 1799
VL  - 14
DO  - 10.3390/polym14091799
ER  - 
@article{
author = "Ildiko, Merta and Poletanović, Bojan and Dragaš, Jelena and Carević, Vedran and Ignjatović, Ivan and Komljenović, Miroslav",
year = "2022",
abstract = "The physical and mechanical properties of hemp-fibre-reinforced alkali-activated (AA) mortars under accelerated carbonation were evaluated. Two matrices of different physical and chemical properties, i.e., a low Ca-containing and less dense one with fly ash (FA) and a high Ca-containing and denser one with FA and granulated blast furnace slag (GBFS), were reinforced with fibres (10 mm, 0.5 vol% and 1.0 vol%). Under accelerated carbonation, due to the pore refinement resulting from alkali and alkaline earth salt precipitation, AA hemp fibre mortars markedly (20%) decreased their water absorption. FA-based hemp mortars increased significantly their compressive and flexural strength (40% and 34%, respectively), whereas in the denser FA/GBFS matrix (due to the hindered CO2 penetration, i.e., lower chemical reaction between CO2 and pore solution and gel products), only a slight variation (±10%) occurred. Under accelerated carbonation, embrittlement of the fibre/matrix interface and of the whole composite occurred, accompanied by increased stiffness, decreased deformation capacity and loss of the energy absorption capacity under flexure. FA-based matrices exhibited more pronounced embrittlement than the denser FA/GBFS matrices. A combination of FA/GBFS-based mortar reinforced with 0.5 vol% fibre dosage ensured an optimal fibre/matrix interface and stress transfer, mitigating the embrittlement of the material under accelerated carbonation.",
publisher = "MDPI",
journal = "Polymers",
title = "The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars",
pages = "1799",
volume = "14",
doi = "10.3390/polym14091799"
}
Ildiko, M., Poletanović, B., Dragaš, J., Carević, V., Ignjatović, I.,& Komljenović, M.. (2022). The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars. in Polymers
MDPI., 14, 1799.
https://doi.org/10.3390/polym14091799
Ildiko M, Poletanović B, Dragaš J, Carević V, Ignjatović I, Komljenović M. The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars. in Polymers. 2022;14:1799.
doi:10.3390/polym14091799 .
Ildiko, Merta, Poletanović, Bojan, Dragaš, Jelena, Carević, Vedran, Ignjatović, Ivan, Komljenović, Miroslav, "The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars" in Polymers, 14 (2022):1799,
https://doi.org/10.3390/polym14091799 . .
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