V. Orlovskyi, M. Malovanyy, V. Biletskyi, Mykola Sokur
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Physico-Chemical Peculiarities of Weighted Thermostable Plugging Materials Hydration
A new competitive class of plugging compositions (weighted non-shrink plugging materials) has been created using as components a fly ash from thermal power station, a weighting additive and a superplasticizer. X-ray phase analysis identified the composition of new materials formed in the hydration process of the developed plugging compositions. The kinetic curves of the plugging material expansion in a wide temperature range have been obtained. Rational temperature regimes of plugging materials hardening according to the criteria of strength and gas permeability of cement stone have been determined.
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