E. Kalinkina, A. Kalinkin, A. Ivanova, E. A. Kruglyak, B. I. Gurevich
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Composite mechanically activated binders based on power plant fly ash, calcite and two-water gypsum
The paper presents the results of studying the binding properties of a mechanically activated composition including fly ash from the Apatity Thermal Power Plant with increased calcium content, calcite concentrate produced from apatite-carbonatite ores of the Kovdorsky deposit and natural gypsum stone. It was found that the composition, depending on the mixing ratio and curing conditions, displays characteristics of both hydraulic binder similar to lime-ash one and air binder similar to gypsum.
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