2023
DOI: 10.1016/j.cscm.2023.e01916
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Changes in the chemical composition of silica fume in the concrete composite system

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Cited by 6 publications
(5 citation statements)
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“…Mukharjee and Barai [27] used the backscattered-mode scanning electron microscopic analysis to characterize the interfacial transition zone (ITZ) of concrete mixes and found the improvement of the microstructure of concrete mixes by adding silica fume. In addition, Frýbort et al [29] confirmed the preventive effect of silica fume on preventing the expansion reactions in concrete. After 18 years of testing, no expansive silica gels were found.…”
Section: Microstrural Characteristicsmentioning
confidence: 94%
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“…Mukharjee and Barai [27] used the backscattered-mode scanning electron microscopic analysis to characterize the interfacial transition zone (ITZ) of concrete mixes and found the improvement of the microstructure of concrete mixes by adding silica fume. In addition, Frýbort et al [29] confirmed the preventive effect of silica fume on preventing the expansion reactions in concrete. After 18 years of testing, no expansive silica gels were found.…”
Section: Microstrural Characteristicsmentioning
confidence: 94%
“…The first is the filling effect. It is broadly stated in the literature that silica dioxide nanoparticles fill the pores in the cement binder and contribute to forming a denser concrete structure [27][28][29]. Mukharjee and Barai [27] used the backscattered-mode scanning electron microscopic analysis to characterize the interfacial transition zone (ITZ) of concrete mixes and found the improvement of the microstructure of concrete mixes by adding silica fume.…”
Section: Microstrural Characteristicsmentioning
confidence: 99%
“…Silika dioksida (SiO2) merupakan amorphous material berbentuk bulat (spherical) dan mempunyai ukuran micro hingga nano meter, biasanya ditemukan sejumlah kecil besi, magnesium dan oksida alkali. Silika dioksida atau silika amorf merupakan bahan pozzolan yang sangat reaktif, dan mempunya tiga peran dalam mekanisme pengerasan beton, yaitu: memadatkan matriks beton karena ukurannya, reaksi dengan kapur bebas (reaksi hidrasi pada semen), dan meningkatkan pengisian transisi antar muka agregat sehingga ikatan antar muka lebih luas (Khan & Siddique, 2011;Hamada et al, 2023;Frýbort et al, 2023).…”
Section: Pendahuluanunclassified
“…Gambar 1 menunjukan bahwa hasil SEM menunjukan bahwa partikel AKK dengan ukuran 100 kali menunjukan serbuk berbentuk bulatan (spherical) dangan ukuran mikrometer. Partikel amorphous pada silika oksida akan berbentuk bulat (spherical) [12]. Pada Gambar 2 menunjukan pembesaran visual 300 kali menunjukan partikel silika oksida yang berfungsi juga sebagai filler mengisi pori diantara antar muka agregat.…”
Section: Scanning Electron Microscope (Sem) Dan Energy Dispersive Spe...unclassified
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