Publications

Scientific publications

А.А. Пак, Р.Н. Сухорукова.
Конструктивные особенности полуцилиндров из ячеистого бетона для теплоизоляции труб теплопроводов
// Проблемы рационального использования природного и техногенного сырья Баренцева региона в технологии строительных и технических материалов. Материалы Второй международной научной конференции. Петрозаводск: КарНЦ РАН, 2005. C. 153-155
A.A. Pak, R.N. Sukhorukova. Structural features of semi-cylinders from cellular concrete for insulation of heat pipelines // Problems in the rational use of natural and technogenic raw materials from the Barents region in construction and technical material technology. Proceedings of Second International Conference. Petrozavodsk: Karelian Research Centre, 2005. Pp. 153-155
Compositions for heat insulating gas-and-ash concrete with a mean density of 350-400 kg/m3 and a method
for making semi-cylinders, or shells, with both-side protective coating are suggested. When industrially manufactured, the shell's exterior surface is provided with a double-layer coating, while the interior surface is covered with a waterproofing coating from rolled material on the basis of an organic binder. By adding 0.50-0.75 w/o of short synthetic fibres to the gas-ash concrete, we increased the bending strength by 48-50%. Thermodynamic trials didn't show any liberation of deleterious impurities from the dispersely fibre concrete gas-and-ash concrete shell mounted on a pipe with the temperature of 550oC.

problem_region_ispol_153.pdf (266 Kb, total downloads: 91)

Last modified: November 30, 2006