ANALISIS HASIL EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI WAKTU PENGERINGAN

LESTARI, SABRINA GHITA and Usman, Arie Putra (2024) ANALISIS HASIL EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI WAKTU PENGERINGAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Nanosilica is nano-sized silica which is around 1-100 nm and has a function to increase the compressive strength of concrete. Nanosilica can be produced by extraction process from fly ash waste. The materials used in this study were fly ash, Hydrochloric acid (HCl) solution, Sodium Hydroxide (NaOH) solution, and distilled water. This study used variations in drying time for 12, 15, and 18 hours. This study used microstructure testing to analyze the extraction results consisting of X-ray diffraction (XRD), X-ray fluorescence (XRF), and Scanning Electron Microscope (SEM). From these results, it can be concluded that the longer the drying time, the larger the size and higher the percentage of crystals also it can reduce the silica content in the sample. Based on the test, it was obtained that the optimum time for drying in the extraction process was 12 hours which produced silica purity of ±33% and an average crystal size of 39.96 nm with crystalline as much as 13.42% and amorphous as much as 86.57 %.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	nanosilica in concrete, extraction process, drying time variation, XRD, XRF, 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:	Sabrina Ghita Lestari
Date Deposited:	09 Jan 2025 06:32
Last Modified:	09 Jan 2025 06:32
URI:	http://repository.unsri.ac.id/id/eprint/163364

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