Production and investigation of mechanical properties and electrical resistivity of cement-matrix nanocomposites with graphene oxide and carbon nanotube reinforcements

• Autorzy: Najafishad S. , Manesh H. D. , Zebarjad S. M. , Hataf N. , Mazaheri Y.

Identyfikatory

DOI

10.1007/s43452-020-00059-5

• Języki publikacji: EN

Abstrakty

EN

In this study, two groups of the cement-matrix nanocomposites (CMNC) were produced. The first group was reinforced with either carbon nanotubes (CNT) or graphene oxide (GO), where the equivalent weight% of cement equaled 0.05, 0.1, and 0.15. The second group was reinforced with the hybrid CNT–GO, where the equivalent weight% of cement equaled 0.05 CNT–0.1 GO and 0.1 CNT–0.05 GO. Before producing nanocomposites, the distribution of the nanoreinforcement in water had been investigated using spectrophotometric analysis, scanning electron microscopy, and transmission electron microscopy. The physical and mechanical behaviors of different samples of the produced nanocomposites were evaluated by electrical resistivity and compressive strength tests. The effects of the types and the percentages of the nanoreinforcements on the electrical and mechanical properties of the produced nanocomposites were measured. The results showed that the electrical resistivity of the produced composites decreased with increasing the percentage of CNT, whereas the compressive strength of the cement paste initially increased and then decreased. Also, with increasing the percentage of GO, the compressive strength of the produced composites increased, while the electrical resistivity decreased. Moreover, in comparison with the composites reinforced with either CNT or GO, by using the hybrid reinforcement (CNT/GO), the compression strength increased, while the electrical resistivity decreased.

Słowa kluczowe

EN

cement-matrix nanocomposite; carbon nanotube; graphene oxide; electrical resistivity; compressive strength

PL

oporność elektryczna; wytrzymałość na ściskanie; nanokompozyt

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 20, no. 2
• Strony: 397--409
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wykr.

Twórcy

autor

Najafishad S.

• Department of Materials Science and Engineering, Shiraz University, Shiraz 71348‑51154, Iran

autor

Manesh H. D.

• Department of Materials Science and Engineering, Shiraz University, Shiraz 71348‑51154, Iran

autor

Zebarjad S. M.

• Department of Materials Science and Engineering, Shiraz University, Shiraz 71348‑51154, Iran

autor

Hataf N.

• Department of Civil and Environmental Engineering, Shiraz University, Shiraz 71348‑51154, Iran

autor

Mazaheri Y.

• Department of Materials Engineering, Bu-Ali Sina University, Hamedan 65178‑38695, Iran

Bibliografia

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• [12] Sixuan H. Multifunctional graphite nanoplatelets (GNP) reinforced cementitious composites. Master’s thesis. University of Singapore; 2012.
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• [14] Aghajani D. Investigation of the electrochemical behavior and the use of gold electrode modified by functionalized graphene at the edges. Master’s thesis. University of Iran; 2014.
• [15] Han BG, Yu X, Ou JP. Effect of water content on the piezoresistivity of CNTs/cement composites. J Mater Sci. 2010;45:3714–9.
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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)