POROUS FLY ASH-BASED GEOPOLYMER USABLE AS AN UNCONVENTIONAL CONSTRUCTION MATERIAL

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BOGDAN-VALENTIN PAUNESCU
LUCIAN PAUNESCU
ENIKO VOLCEANOV

Abstract

Geopolymer foam with thermal insulation properties was made by foaming the alumino-silicate mixture composed of fly ash and clay brick waste activated with alkaline activator (water glass and sodium hydroxide in aqueous solution). Other mixture components were expanded perlite as siliceous additive, usual fine aggregate (quartz sand), and less frequently used surfactant (olive oil). The main characteristics of the geopolymer foam were: low density, low thermal conductivity, and relatively high compressive strength. The residual materials contributed to low costs and the complete replacement of ordinary cement led to the significant reduction of CO2 emissions.

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How to Cite
PAUNESCU, B.-V., PAUNESCU, L., & VOLCEANOV, E. (2024). POROUS FLY ASH-BASED GEOPOLYMER USABLE AS AN UNCONVENTIONAL CONSTRUCTION MATERIAL. Journal of Engineering Studies and Research, 29(3), 57-65. https://doi.org/10.29081/jesr.v29i3.006
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Articles
Author Biographies

BOGDAN-VALENTIN PAUNESCU

Consitrans SA, 56 Polona street, Sector 1, Bucharest, 010504, Romania

LUCIAN PAUNESCU

Cosfel Actual SRL, 95-97 Calea Grivitei, Sector 1, Bucharest, 010705, Romania

ENIKO VOLCEANOV

University “Politehnica” of Bucharest, Faculty of Science and Materials Engineering, 313 Independence Splai, Sector 6, Bucharest, 060042, Romania

Metallurgical Research Institute SA, 39 Mehadia street, Sector 6, Bucharest, 060543, Romania