Geopolymer mortar incorporating high calcium fly ash and silica fume

• Autorzy: Prabha V. C. , Revathi V.

Identyfikatory

DOI

10.2478/ace-2019-0001

• Języki publikacji: EN

Abstrakty

EN

An attempt was made in the present work to study the compressive strength and microstructure of geopolymer containing high calcium fly ash (HCFA) and silica fume. Concentration of sodium hydroxide solution 8M, 10M, 12M & 14M, liquid to binder ratio 0.5 and sodium hydroxide to sodium silicate ratio 2.5 were selected for the mixes. Geopolymer mortar test results indicated that the mix with 40% silica fume by the weight of HCFA yielded higher compressive strength under ambient curing. The XRD pattern typically shows the major portion of amorphous phase of geopolymer. The existence of C-A-S-H gel, N-A-S-H gel and hydroxysodalite gel products were observed through SEM which developed dense microstructure and thus enhanced strength of HCFA and silica fume geopolymer.

Słowa kluczowe

EN

geopolymer mortar; compressive strength; ambient curing; high-calcium ash; fly ash; silica fume

PL

zaprawa geopolimerowa; wytrzymałość na ściskanie; utwardzanie w otoczeniu; popiół lotny; zawartość wapnia wysoka; pył krzemionkowy

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2019
• Tom: Vol. 65, nr 1
• Strony: 3--16
• Opis fizyczny: Bibliogr. 30 poz., il., tab.

Twórcy

autor

Prabha V. C.

• College of Engineering, Dept. of Civil Engineering, Tamil Nadu, India

autor

Revathi V.

• College of Engineering, Dept. of Civil Engineering, Tamil Nadu, India

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).