EFFECTS OF ACTIVATOR SYNTHESIS CONDITIONS ON ALKALI-ACTIVATED BINDERS FROM TUNGSTEN MINING WASTE

Gediminas Kastiukas and Xiangming Zhou
Brunel University
João Castro-Gomes
University of Beira Interior

Abstract: Tungsten mining waste (TMT) has accumulated in the billions of tonnes in the mines of Western Europe, which is problematic because reuse options for this material are limited. TMT is inherently an aluminosilicate and therefore possesses the capacity to be used as a suitable raw material for the production of alkali activated binders (AAB) that exhibit high strength, rapid setting, good durability and high resistance tochemical attack. This research presents the results of preparation conditions optimized for the production of an AAB using TMT and waste glass (WG). It is demonstrated that the problematic mining waste can be successfully transformed into a suitable AAB when moisture loss is prevented and activator preparation parameters such as mixing and rest time are precisely controlled.

Read Full Article ( in Young Researchers’ Forum III
Innovation in Construction Materials )

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