Properties of Tungsten Mine Waste Geopolymeric Binder- Experimental Work III

Properties of tungsten mine waste geopolymeric binder

Experimental work

Materials

Mine waste Blaine fineness is low but is in the range of the most used slag based alkaline binders. Despite the fact that increase fineness led to increase reactivity that can be overcome by using higly alkaline-silicate activators.

Table 2 shows gradation and physical characteristics of aggregates. Limestone and granitic coarse aggregates have the same Faury maximum dimension (9.52) and similar fineness modulus respectively 5.5 and 5.2. Schist sand has a lower maximum dimension (2.78) and a fineness modulus of 2.38.

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