Alkali-Activated Binder from Tungsten Mining Waste and Waste Glass

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A foamed alkali-activated material (FAAM), based on tungsten mining waste (TMW) and waste glass (WG) was fabricated by using chemical foaming and pre-formed foaming methods. The compressive strength and density of the FAAM were investigated in terms of different parameters of formulation including foaming method, foam catalyzing agent and stabilizing agent. A FAAM made with aluminium powder consisted of smaller open macropores and exhibited higher compressive strength in comparison with organic surfactant counterparts which formed larger closed macropores. The final aluminium powder based FAAM reached a 7-day compressive strength in excess of 3 MPa and a density below 0.7 g/cm3. The incorporation of an appropriate amount of foam stabilizer led to a further 15% increase in compressive strength, 6% reduction in density and a thermal conductivity below 0.1 W/mK.

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Edited by:

Gundars Mežinskis, Līga Grase, Ruta Švinka, Ilona Pavlovska, Jānis Grabis, Kęstutis Baltakys and Irina Hussainova

Pages:

45-50

Citation:

G. Kastiukas and X. M. Zhou, "Alkali-Activated Binder from Tungsten Mining Waste and Waste Glass", Key Engineering Materials, Vol. 788, pp. 45-50, 2018

Online since:

November 2018

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$38.00

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