Колонка редактора - Eng

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Comparison of different gas-forming on the kinetics of gas emission

UDK: 691.327.332

D.A. Kartashova, K.D. Mikhailina - Perm National Research Polytechnic University, Perm, Russian Federation

Today aerated concrete is a popular building material. Gas-forming agents are used in the process of its production. As there is a large number of gas-forming agents, manufacturers need to choose an additive with the most suitable characteristics. The main quality measure of aerated concrete is porosity, as it determines thermophysical and mechanical properties of concrete. Thus, in the study of original characteristics, much attention is given to gas-forming agents. According to the research, aluminum powder that appears one of the most widely used agents. The article studies gas emission kinetics of aluminum powders by different producers and in different countries. Gas-volumeter can be applied to determine the volume of the released gas. The method is based on changing the hydrogen volume as a result of reaction behavior of aluminum particles with sodium hydroxide. Laboratory environment made it possible to define the following additives: those with the largest and smallest gas emission, the ones with the smoothest kinetics of gas emission and those with higher and lower gas emission intensity at different time.

Файл: Карташова Д.А.pdf, 6 pag.

Рубрика: Строительные материалы и технологии их производства
Выпуск №9: По материалам IX Всероссийской молодежной конференции аспирантов, молодых ученых и студентов «СОВРЕМЕННЫЕ ТЕХНОЛОГИИ В СТРОИТЕЛЬСТВЕ. ТЕОРИЯ И ПРАКТИКА», (Часть II ,октябрь, 2017)


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