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Mechanical and microstructural characterization of geopolymer synthesized from low calcium fly ashDolenec, Sabina ; Ducman, VilmaThis study deals with the mechanical and microstructural characterization of geopolymers synthesized from locally available fly ash. A low calcium fly ash was activated using a sodium silicate ... solution. Samples were characterized by means of flexural and compressive tests, Fourier Transform Infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and scanning electron microscopy(SEM). Porosity and pore size distributions were identified using mercury intrusion porosimetry and gas sorption. The compressive strength of the produced geopolymers, which is in the range of 1.6 to 53.3 N/mm2, is strongly related to the water content as well as SiO2/Na2O mass ratio of an alkali activator. The compressive strength significantly increased with decreases in the water content and increased silicon concentration used for the synthesis of geopolymersSource: Chemical industry & chemical engineering quarterly. - ISSN 1451-9372 (Vol. 21, no. 1, 2015, str. 13-22)Type of material - article, component part ; adult, seriousPublish date - 2015Language - englishCOBISS.SI-ID - 2009703
Author
Dolenec, Sabina |
Ducman, Vilma
Topics
geopolymers |
fly ash |
microstructure |
mechanical properties |
geopolimeri |
elektrofiltrski pepel |
mikrostruktura |
mehanske lastnosti
source: Chemical industry & chemical engineering quarterly. - ISSN 1451-9372 (Vol. 21, no. 1, 2015, str. 13-22)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Dolenec, Sabina | 27655 |
Ducman, Vilma | 11292 |
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