Badanie właściwości mechanicznych i trwałości betonu zawierającego nanocząstki Fe3O4/SiO2/tlenek grafenu i tlenku grafenu

• Autorzy: Saliani Mehdi , Honarbakhsh Amin , Zhiani Rahele , Mojtaba Movahedifar Seyed , Motavalizadehkakhky Alireza

Identyfikatory

DOI

10.32047/CWB.2021.26.1.7

Warianty tytułu

EN

Investigating the mechanical properties and durability indices of concrete containing Fe3O4/SiO2/GO and GO nanoparticles

• Języki publikacji: PL EN

Abstrakty

PL

Najnowsze badania w przemyśle materiałów budowlanym uzasadniają częściowe zastąpienie cementu nanomateriałami. Nanokompozyt tlenku grafenu jest materiałem, który został ostatnio zaproponowany jako dodatek do betonu. Brak jest jednak badań nad zastosowaniem tych syntetycznych związków w betonie, a także niewiele wiadomo o wpływie tych materiałów na właściwości mechaniczne i trwałość betonu. Dlatego w niniejszej pracy laboratoryjnej, przeprowadzeniu syntezy nanocząstek Fe3O4/SiO2/ tlenek grafenu i nanocząstek tlenku grafenu oraz potwierdzono je wynikami analiz spektroskopii w podczerwieni oraz za pomocą skaningowej i trasmisyjnej mikroskopii elektronowej. Nanocząstki te dodawano do betonu jako zamiennik cementu w ilości 1, 2, 3 i 4% masy cementu i zbadano ich wpływ na właściwości mechaniczne i trwałość próbek po 7, 28 i 90 dniach. Wyniki badań wykazują, że najlepsze wyniki w badaniach właściwości mechanicznych uzyskały mieszanki, w których cement zastąpiono odpowiednio 2% nanocząstek Fe3O4/ SiO2/tlenek grafenu oraz 3% nanocząstek tlenku grafenu. Beton zawierający nanocząstki Fe3O4/SiO2/tlenek grafenu zwiększył wytrzymałość na ściskanie o 14% i wytrzymałość na rozciąganie przy rozłupywaniu o 12% po 28 dniach utwardzania. Również w próbce zawierającej 2% nanocząstek Fe3O4/SiO2/tlenek grafenu zaobserwowano największą odporność na środowisko kwasowe najmniejszą przepuszczalność. Natomiast w teście ultradźwiękowym stwierdzono największą prędkość przejścia fali ultradźwiękowej w porównaniu z próbkami zawierającymi nanocząstki tlenku grafenu i z próbką wzorcową.

EN

Recent research in the construction industry justifies the partial replacement of cement by nanomaterials. Graphene oxide nanocomposite is a material that has been recently proposed as a suitable alternative for part of cement in concrete. However, there is no research on the addition of these synthetic compounds to concrete, and little is known about the effect of these materials on the mechanical and durability properties of concrete. Therefore, in this laboratory study, the synthesis of Fe3O4/SiO2/GO and GO nanoparticles was performed and confirmed with FT-IR, SEM, TEM analyses. These nanoparticles partially replaced cement by 1, 2, 3, and 4 % by mass of the cement, and their effect on mechanical and durability properties of concrete at the ages of 7, 28, and 90-day, were investigated. The results suggest that mixtures in which 2% Fe3O4/SiO2/GO and 3% GO substituted cement yielded the best results in the mechanical properties tests. Concrete containing Fe3O4/SiO2/GO nanoparticles enhanced compressive strength by 14% and splitting tensile strength by 12% after 28-days of curing. Also, concrete containing 2% Fe3O4/SiO2/GO, had the highest resistance to an acidic environment, the lowest permeability, and the highest transient pulse velocity in the ultrasonic test, compared to the specimen containing GO nanoparticles and the control sample.

Słowa kluczowe

PL

właściwości mechaniczne; beton; trwałość; tlenek grafenu; nanocząstka Fe3O4/SiO2/TG

EN

mechanical properties; concrete; durability; graphene oxide; Fe3O4/SiO2/GO nanoparticle

• Wydawca: Fundacja Cement, Wapno, Beton
• Czasopismo: Cement Wapno Beton
• Rocznik: 2021
• Tom: R. 26, nr 1
• Strony: 67--82
• Opis fizyczny: Bibliogr. 41 poz., il., tab.

Twórcy

autor

Saliani Mehdi

• Department of Civil Engineering, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran

autor

Honarbakhsh Amin

• Department of Civil Engineering, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
• New Materials Technology and Processing Research Center, Department of Civil Engineering, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran

autor

Zhiani Rahele

• Department of Chemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
• New Materials Technology and Processing Research Center, Department of Chemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran

autor

Mojtaba Movahedifar Seyed

• Department of Civil Engineering, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran

autor

Motavalizadehkakhky Alireza

• Department of Chemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran

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Uwagi

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