The peculiarities of obtaining porous materials based on different types of ash and slag materials (fly ash, boiler slag, ash-slag mixture) by the “self-foaming” technology using Na2B4O7 flux were studied. Changes in the internal structure and density of samples depending on the foaming temperature and flux content were considered. It was shown that samples based on boiler slag have the most uniform structure. The patterns of the influence of phase composition on the intensity
of sintering and foaming were described, consisting in increased activity of interaction of glass phase components and simplification of softening of the aluminosilicate mass.
Boris M. Gol’tsman – Candidate of Technical Sciences, Associate Professor, “General Chemistry and Technology of Silicates” Department, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
Victoria A. Smoliy – Candidate of Technical Sciences, Associate Professor, “General Chemistry and Technology of Silicates” Department, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
Vladislav S. Yatsenko – post-graduate Student, “General Chemistry and Technology of Silicates” Department, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
Ekaterina A. Vil’bitskaya – 4th year student, Department “Urban development, design of buildings and structures”, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
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