DEVELOPMENT OF POROUS CONCRETE GEOPOLYMER USING HYDROGEN PEROXIDE AS BLOWING AGENT.

PUEPI KOM, Herve (2013) DEVELOPMENT OF POROUS CONCRETE GEOPOLYMER USING HYDROGEN PEROXIDE AS BLOWING AGENT. Masters thesis, Faculté des sciences, université de yaoundé 1.

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    Abstract

    Metakaolin and volcanic ashes respectively called MK and ZG were used as aluminosilicate raw materials for the synthesis of porous geopolymers. The hydrogen peroxide was used as a blowing agent. The geopolymer prepared were characterized by Spectroscopy Fourier Transform Infrared (SFTI), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and the determination of some physical properties such as bulk density, total porosity, volume shrinkage, compressive strength and thermal conductivity was also carried out. The presence of pores in the geopolymer obtained is function of the percentage of hydrogen peroxide added, causing the concomitantly decrease in compressive strength, apparent density and thermal conductivity. The use of hydrogen peroxide as a blowing agent gave some thermal insulation properties to these geopolymers which could be close to the properties of some commercial insulation materials.

    Item Type: Thesis (Masters)
    Uncontrolled Keywords: Métakaolin ; scories volcaniques ; peroxyde d’hydrogène ; géopolymères poreux.
    Subjects: 500 Natural sciences and mathematics > 540 Chemistry and allied sciences
    500 Natural sciences and mathematics > 550 Earth sciences > 556 Earth sciences of Africa
    Divisions: Africa > Cameroon > Université de Yaoundé 1 (UY1) > Faculté des Sciences
    Depositing User: PUEPI Hervé KOM
    Date Deposited: 09 Jun 2016 13:33
    Last Modified: 09 Jun 2016 13:33
    URI: http://eprints.campuce.org/id/eprint/93

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