HIGH STRENGTH-GEOPOLYMER BUILDING MATERIAL

LUCIAN  PAUNESCU; ENIKÖ  VOLCEANOV; BOGDAN-VALENTIN  PAUNESCU

doi:10.29081/jesr.v28i4.012

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Published: Feb 9, 2023

DOI: https://doi.org/10.29081/jesr.v28i4.012

Keywords:

geopolymer, fly ash, recycled concrete waste, alkaline activator, polymerization reaction, compressive strength.

LUCIAN PAUNESCU

ENIKÖ VOLCEANOV

BOGDAN-VALENTIN PAUNESCU

Abstract

New geopolymer concrete with high mechanical strength - 58.9 MPa after 28 days of curing - was experimentally made under environmental friendly and economic conditions. The high-strength-geopolymer is baed on coal fly ash and building concrete waste as geopolymer materials suitable for completely substituting the cement in concrete structure. The alumino-silicate geopolymer materials with binder role were activated in liquid alkaline medium (sodium silicate and sodium hydroxide) for facilitating the polymerization reaction that turns the alumino-silicate wastes into geopolymer concrete. The use for the first time in this experiment of recycled building concrete waste from demolition is the work originality.

How to Cite

PAUNESCU, L., VOLCEANOV, E., & PAUNESCU, B.-V. (2023). HIGH STRENGTH-GEOPOLYMER BUILDING MATERIAL. Journal of Engineering Studies and Research, 28(4), 107-115. https://doi.org/10.29081/jesr.v28i4.012

Issue

Vol. 28 No. 4 (2022): Journal of Engineering Studies and Research

Section

Articles

Author Biographies

LUCIAN PAUNESCU

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

ENIKÖ VOLCEANOV

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

Faculty of Science and Materials Engineering, University “Politehnica” of Bucharest, 313 Independence Splai, sector 1, Bucharest 060032, Romania

BOGDAN-VALENTIN PAUNESCU

Consitrans SA, 56 Polona street, sector 1, Bucharest 010494, Romania

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LUCIAN PAUNESCU

ENIKÖ VOLCEANOV

BOGDAN-VALENTIN PAUNESCU

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