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Pregled bibliografske jedinice broj: 1103377

Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars


Juradin, Sandra; Boko, Ivica; Netinger Grubeša, Ivanka; Jozić, Dražan; Mrakovčić, Silvija
Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars // Construction and building materials, 273 (2021), 121702, 14 doi:10.1016/j.conbuildmat.2020.121702 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1103377 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars

Autori
Juradin, Sandra ; Boko, Ivica ; Netinger Grubeša, Ivanka ; Jozić, Dražan ; Mrakovčić, Silvija

Izvornik
Construction and building materials (0950-0618) 273 (2021); 121702, 14

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Hemp fibre ; Spanish broom fibre ; Fibre treatments ; Mortar ; Mechanical properties ; The specific fracture energy of the specimens ; FTIRTG/DTGXRD

Sažetak
This paper presents experimental investigations into the behaviour of cement mortar micro- reinforced with natural hemp and Spanish broom fibres. The fibre treatment process was carried out with: alkali (2.5, 5, 6, 8, 10 and 15% NaOH solution, and 2.5 or 5% NaOH and 2% Na2SO3 mixed solution), seawater, and a combination of alkali (5% NaOH) and seawater. The changes in fibre structure caused by the chemical treatment were monitored by FTIR, TG/DTG and XRD analysis. Fibres were added to mortar specimens in amounts of 0.34, 0.5, 0.68 and 1 vol%. The flexural and compressive strengths were tested on mortar specimens after 56 days. The σ–δ diagrams are presented, and the specific fracture energy is determined based on the curve from the plot of load (N) vs. displacement (mm). The tensile strength of the fibres was determined on specimens treated in the same way. Treatment in different solutions showed that increased pH values of the treatment medium have a great influence on the increase in crystallinity, for both Spanish broom and hemp fibres. The results presented here showed that natural fibres do not have a significant influence on the mechanical properties of the mortar (compressive and flexural strengths), but do significantly increase its ductility. In addition, it has been shown that specimens with a lower proportion of natural fibres give better mechanical properties and higher ductility of the material. It was observed that both the mortar preparation and the method of fibre installation significantly affect the mortar properties. Seawater as a means of treating fibres was proven to be the most ecologically and economically acceptable treatment method. Spanish broom fibres showed large potential for reinforcing cement composites.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Ustanove:
Kemijsko-tehnološki fakultet, Split,
Fakultet građevinarstva, arhitekture i geodezije, Split,
Građevinski fakultet, Rijeka,
Građevinski i arhitektonski fakultet Osijek

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com

Citiraj ovu publikaciju:

Juradin, Sandra; Boko, Ivica; Netinger Grubeša, Ivanka; Jozić, Dražan; Mrakovčić, Silvija
Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars // Construction and building materials, 273 (2021), 121702, 14 doi:10.1016/j.conbuildmat.2020.121702 (međunarodna recenzija, članak, znanstveni)
Juradin, S., Boko, I., Netinger Grubeša, I., Jozić, D. & Mrakovčić, S. (2021) Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars. Construction and building materials, 273, 121702, 14 doi:10.1016/j.conbuildmat.2020.121702.
@article{article, year = {2021}, pages = {14}, DOI = {10.1016/j.conbuildmat.2020.121702}, chapter = {121702}, keywords = {Hemp fibre, Spanish broom fibre, Fibre treatments, Mortar, Mechanical properties, The specific fracture energy of the specimens, FTIRTG/DTGXRD}, journal = {Construction and building materials}, doi = {10.1016/j.conbuildmat.2020.121702}, volume = {273}, issn = {0950-0618}, title = {Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars}, keyword = {Hemp fibre, Spanish broom fibre, Fibre treatments, Mortar, Mechanical properties, The specific fracture energy of the specimens, FTIRTG/DTGXRD}, chapternumber = {121702} }
@article{article, year = {2021}, pages = {14}, DOI = {10.1016/j.conbuildmat.2020.121702}, chapter = {121702}, keywords = {Hemp fibre, Spanish broom fibre, Fibre treatments, Mortar, Mechanical properties, The specific fracture energy of the specimens, FTIRTG/DTGXRD}, journal = {Construction and building materials}, doi = {10.1016/j.conbuildmat.2020.121702}, volume = {273}, issn = {0950-0618}, title = {Influence of different treatment and amount of Spanish broom and hemp fibres on the mechanical properties of reinforced cement mortars}, keyword = {Hemp fibre, Spanish broom fibre, Fibre treatments, Mortar, Mechanical properties, The specific fracture energy of the specimens, FTIRTG/DTGXRD}, chapternumber = {121702} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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