ANALISIS HASIL EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI TEMPERATUR PERENDAMAN

'AFIFAH, NAURAH and Usman, Arie Putra (2024) ANALISIS HASIL EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI TEMPERATUR PERENDAMAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Nanosilica is a material that accelerates the pozzolanic reaction and fills the nanopores of concrete, with particle sizes ranging from 1 to 100 nm and a high specific surface area. It functions to improve the compressive strength of concrete. Nanosilica can be produced through an extraction process from fly ash waste. The materials used in this study include fly ash, NaCl solution, NaOH solution, and distilled water. This research applied variations in soaking temperatures of 90°C, 105°C, and 115°C. Microstructural testing methods such as X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), and Scanning Electron Microscope (SEM) were employed to analyze the extraction results. The findings indicate that higher soaking temperatures result in smaller sizes and lower crystal percentages while producing the highest amount of silica. Based on the tests, it can be concluded that higher soaking temperatures result in smaller crystal sizes and percentages, as well as a higher silica yield. The testing results showed that the optimum soaking temperature for the extraction process is 115°C, which produces silica with a purity of approximately 34%, an average crystal size of 75.58 nm, 11.53% crystallinity, and 88.46% amorphous content.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Nanosilika, Fly Ash, Ekstraksi, Metode Pemanasan, XRF, XRD, SEM
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA145 General works. Civil engineering, etc. 1850- T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA401.A327 Materials science
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Naurah ' Afifah
Date Deposited:	09 Jan 2025 04:06
Last Modified:	09 Jan 2025 04:06
URI:	http://repository.unsri.ac.id/id/eprint/163288

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