Characterization of Geopolymer Paste based on Fly Ash and Bottom Ash in PLTU Kaltim Teluk using Sodium Hydroxide (NaOH)

Andika Ade Indra Saputra, Adrian Gunawan, Latu Anggary Putri Sukandar, Yoel Gallaran Salurante, Intan Dwi Wahyu Setyo Rini

2019

Abstract

Cement Industry in Indonesia has grown significantly every year. Limestone is one of the raw cement substitution material which has rapidly grown. The cement production process released carbon dioxide (CO2), which resulted in global warming. As an alternative material substitution, fly ash (FA) and bottom ash (BA) as the remained coal was generally used for cement production. PLTU Kaltim Teluk, one of the steam power plant which located in Balikpapan, East Kalimantan, produced 150 tons of FA in a day. However, FA and BA were laid out in the landfill and had not managed well. Actually, FA and BA had potential material as a substitution of cement in the paving block ingredients. Adding an alkaline activation, which consists of sodium silicate (Na2SiO3) and sodium hydroxide (NaOH), could be increased the compressive strength, especially for paste using 100% FA. The property of FA was characterized by Scanning Electron Microscope (SEM) and X-Ray Fluorescence (XRF). A compressive strength test was carried out on paste at the age of 3 and 14 days. The result showed that the highest compressive strength at 14 days was 13.93 MPa with 12 M NaOH. This research was conducted as an alternative solution to the waste of PLTU Kaltim Teluk as a substitute for cement in Balikpapan.

Paper Citation

in Harvard Style

Saputra A., Gunawan A., Sukandar L., Salurante Y. and Rini I. (2019). Characterization of Geopolymer Paste based on Fly Ash and Bottom Ash in PLTU Kaltim Teluk using Sodium Hydroxide (NaOH).In Proceedings of the 1st International Conference on Industrial Technology - Volume 1: ICONIT, ISBN 978-989-758-434-3, pages 252-258. DOI: 10.5220/0009445802520258

in Bibtex Style

@conference{iconit19,
author={Andika Ade Indra Saputra and Adrian Gunawan and Latu Anggary Putri Sukandar and Yoel Gallaran Salurante and Intan Dwi Wahyu Setyo Rini},
title={Characterization of Geopolymer Paste based on Fly Ash and Bottom Ash in PLTU Kaltim Teluk using Sodium Hydroxide (NaOH)},
booktitle={Proceedings of the 1st International Conference on Industrial Technology - Volume 1: ICONIT,},
year={2019},
pages={252-258},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009445802520258},
isbn={978-989-758-434-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Industrial Technology - Volume 1: ICONIT,
TI - Characterization of Geopolymer Paste based on Fly Ash and Bottom Ash in PLTU Kaltim Teluk using Sodium Hydroxide (NaOH)
SN - 978-989-758-434-3
AU - Saputra A.
AU - Gunawan A.
AU - Sukandar L.
AU - Salurante Y.
AU - Rini I.
PY - 2019
SP - 252
EP - 258
DO - 10.5220/0009445802520258