Open AccessEffect of Iron Oxide (Fe2O3) on the Properties of Fly Ash Based Geopolymer
Author(s) -
Warid Wazien Ahmad Zailani,
Mohd Mustafa Al Bakri Abdullah,
Mohd Fadzil Arshad,
Dumitru Doru Burduhos-Nergis,
Muhammad Faheem Mohd Tahir
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/877/1/012017
Subject(s) - fly ash , geopolymer , iron oxide , fayalite , curing (chemistry) , materials science , geopolymer cement , microstructure , oxide , metallurgy , waste management , chemical engineering , mineralogy , composite material , chemistry , engineering , olivine
Geopolymer is an attractive construction binder owing to its ability to improve the properties of the concrete and preserves the environment from the high CO 2 emission. Geopolymer technology will convert the potential hazardous industrial waste such as fly ash into valuable construction materials. However, there is a need of studying the properties of iron-based geopolymer in order to enhance the fundamental and knowledge of the geopolymer research also development in this study area. Fly ash which contains a significant amount of iron oxide (Fe 2 O 3 ) was used as a precursor and tested at different curing duration (1, 3, 7, 14 and 28 days). Crystallization of iron oxide (Fe 2 O 3 ) contained in the fly ash under geopolymerization process will be able to turn waste fly ash into a strong concrete materials, simultaneously creating a waste-to-wealth economy. Furthermore, the formation of fayalite detected from the microstructure characterization is mainly contribute to the strength development of the fly ash after 28 days curing.