Kinetics of Fly Ash Geopolymerization using Semi Quantitative Fourier-Transform Infrared Spectroscopy (FTIR); Corr Data

4th International Conference on Science, Technology and Interdisciplinary Research

工业技术（总论）;自然科学（总论）

Murti Petrus, Himawan Tri Bayu^1^4 ; Adelizar, Arie Satya^1^2 ; Widiyatmoko, Achmad^1 ; Olvianas, Muhammad^1 ; Suprapta, Wisnu^1 ; Perdana, Indra^1^4 ; Prasetya, Agus^1^4 ; Astuti, Widi^3

Department of Chemical Engineering (Sustainable Mineral Processing Research Group), Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta

55281, Indonesia^1

Graduate School of Chemical Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta

55281, Indonesia^2

Research Unit for Mineral Technology, Indonesian Institute of Sciences (LIPI), Jl. Ir. Sutami Km. 15, Tanjung Bintang, Lampung Selatan, Indonesia^3

Unconventional Geo-resources Research Center, Faculty of Engineering, Universitas Gadjah Mada, Jl. Grafika No. 2, Yogyakarta

55281, Indonesia^4

关键词: Curing temperature;    Diffusion model;    Fly ash utilization;    FTIR analysis;    Geopolymerization;    Kinetics modeling;    Material constructions;    Time-series data;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/532/1/012001/pdf
DOI  :  10.1088/1757-899X/532/1/012001

来源: IOP

【 摘 要 】

Fly ash utilization is very urgent to be conducted alas contaminating the environment. One of the promising utilizations is geopolymer formation for material construction. In this study, geopolymer formation was studied using fly ash from PLTU Tanjung Jati Jepara. This study included kinetics prediction using solid state isoconversion kinetics that has been developed based on nucleation, geometric contraction, and diffusion models. Semi quantitative FTIR analysis (corr) has been applied to predict the kinetics of the fly ash geopolymerization in curing temperature of 30 and 90°C. In order to be able to verify the kinetics model time series data were taken in interval of 1,3,5,14,21, and 28 days. It is the diffusion model that represents the fly ash geopolymerization with R2 of 0.9437.