TY  - JOUR
AU  - Merta, Ildiko
AU  - Poletanovic, Bojan
AU  - Dragas, Jelena
AU  - Carevic, Vedran
AU  - Ignjatovic, Ivan
AU  - Komljenović, Miroslav M
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1564
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/GBFSbased
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
VL  - 14
DO  - 10.3390/polym14091799
ER  - 

@article{
author = "Merta, Ildiko and Poletanovic, Bojan and Dragas, Jelena and Carevic, Vedran and Ignjatovic, Ivan and Komljenović, Miroslav M",
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/GBFSbased
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",
volume = "14",
doi = "10.3390/polym14091799"
}

Merta, I., Poletanovic, B., Dragas, J., Carevic, V., Ignjatovic, I.,& Komljenović, M. 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.
https://doi.org/10.3390/polym14091799

Merta I, Poletanovic B, Dragas J, Carevic V, Ignjatovic I, Komljenović MM. 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.
doi:10.3390/polym14091799 .

Merta, Ildiko, Poletanovic, Bojan, Dragas, Jelena, Carevic, Vedran, Ignjatovic, Ivan, Komljenović, Miroslav 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, 14 (2022),
https://doi.org/10.3390/polym14091799 . .

TY  - JOUR
AU  - Poletanović, Bojan
AU  - Dragas, Jelena
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav M
AU  - Merta, Ildiko
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1323
AB  - Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag. The addition of hemp fibres slightly changed the mortars' density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity. The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars
VL  - 259
DO  - 10.1016/j.conbuildmat.2020.119677
ER  - 

@article{
author = "Poletanović, Bojan and Dragas, Jelena and Ignjatović, Ivan and Komljenović, Miroslav M and Merta, Ildiko",
year = "2020",
abstract = "Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag. The addition of hemp fibres slightly changed the mortars' density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity. The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars",
volume = "259",
doi = "10.1016/j.conbuildmat.2020.119677"
}

Poletanović, B., Dragas, J., Ignjatović, I., Komljenović, M. M.,& Merta, I.. (2020). Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 259.
https://doi.org/10.1016/j.conbuildmat.2020.119677

Poletanović B, Dragas J, Ignjatović I, Komljenović MM, Merta I. Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars. in Construction and Building Materials. 2020;259.
doi:10.1016/j.conbuildmat.2020.119677 .

Poletanović, Bojan, Dragas, Jelena, Ignjatović, Ivan, Komljenović, Miroslav M, Merta, Ildiko, "Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars" in Construction and Building Materials, 259 (2020),
https://doi.org/10.1016/j.conbuildmat.2020.119677 . .