HIGH STRENGTH-GEOPOLYMER BUILDING MATERIAL

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 su...

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Veröffentlicht in:	Journal of engineering studies and research 2023-02, Vol.28 (4)
Hauptverfasser:	LUCIAN PAUNESCU, ENIKÖ VOLCEANOV, BOGDAN-VALENTIN PAUNESCU
Format:	Artikel
Sprache:	eng
Schlagworte:	geopolymer, fly ash, recycled concrete waste, alkaline activator, polymerization reaction, compressive strength
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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.
ISSN:	2068-7559 2344-4932