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Development of Porous Geopolymer Materials from Meta-kaolin and Fly Ash

Abdul Halim, Nurul Fatiehah (2015) Development of Porous Geopolymer Materials from Meta-kaolin and Fly Ash. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The present work reports on the development of cost effective porous geopolymer materials from meta-kaolin and fly ash via an addition of three different mechanisms to produce pores. This research focused on synthesizing the geopolymer composites followed by characterization to analyze its physical properties in terms of crystallinity, physical, thermal and mechanical strength. Polymerization process of fly ash and meta-kaolin based geopolymer involved a chemical reaction of alumino-silicate oxides (Si2O3, Al2O2) with alkaline activators consist of the combination of sodium hydroxide (NaOH) solution and sodium silicate (Na2O3Si) solution under high curing temperature conditions. Pore forming agent such as baking soda, calcium metal and corn oil are added to increase the porosity of the geopolymer sample. The geopolymer composites were characterized using Gas Pycnometer test, Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA) and Compression Test. According to SEM test, meta-kaolin based geopolymer containing corn oil exhibit more pores compared to other samples. This sample exhibits higher porosity at 48% porosity, however has the lowest compression strength at 0.44 MPa. While at 16% porosity, sample with baking soda has the highest strength at 1.08 MPa.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 09 Mar 2016 10:50
Last Modified: 25 Jan 2017 09:34
URI: http://utpedia.utp.edu.my/id/eprint/16308

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