Open AccessPhysico-Mechanical Properties of Geopolymer Based on Laterite Deposit Sidrap, South Sulawesi
Author(s) -
Subaer subaer,
Abdul Haris,
Andi Irhamsyah,
Nur Akifah,
Nur Syamsih Amalia
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1244/1/012037
Subject(s) - laterite , geopolymer , materials science , compressive strength , microstructure , fourier transform infrared spectroscopy , scanning electron microscope , raw material , flexural strength , composite material , mineralogy , metallurgy , chemical engineering , geology , chemistry , nickel , organic chemistry , engineering
Laterite soil deposit Sidrap, South Sulawesi, has been used as a raw material in the production of Na-Poly (sialate-siloxo) geopolymers. The main objective of this study is to investigate the physicomechanical properties of the resulting geopolymers synthesized from laterite Sidrap. Geopolymers were produced through the alkali-activation method of dehydroxylated laterite. Dehydroxylation was performed by using high-temperature furnace at 750°C for 4 hours. The resulting geopolymers were characterized based on X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), Fourier Transform Infra Red (FTIR) and Scanning Electron Microscopy (SEM) in order to examine their mineralogy and microstructure properties. The physicomechanical properties of geopolymer were examined through compressive and flexural strength. It was found that geopolymer based on Sidrap laterite exhibited good and high mechanical strength which make them suitable for various structural applications.