Investigation of Composition and Technological Parameters of Highly Porous Gypsum Products Obtaining

Abstract:

A highly porous structure of a gypsum product creation is possible due to the porisation of gypsum mass, using new types of complex gas-forming components. At the same time, it is necessary to determine the technological conditions for the optimal formation of porous gypsum products structure and methods for increasing their strength. The article proposed to use dispersed calcium carbonate and aluminum sulphate, which interaction is the reaction with the release of СО₂ for the porisation of the gypsum cast mixture. Micro-reinforcing additives, such as polymeric, basalt and glass fibers were introduced into gypsum composition together with building gypsum and finely ground calcium carbonate to improve the physico-mechanical properties of gas-gypsum. The best results were shown by the gas-gypsum, which included fiberglass. Glass fiber was pre-ground to a specific surface of 190-240 m² / kg, in order to improve further the physico-mechanical properties of gas-gypsum.

• Periodical: Solid State Phenomena (Volume 299)
• Pages: 130-136
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.299.130
• Online since: January 2020
• Authors: Lilia V. Ilina*, Lubov V. Zavadskaya, Anastasia I. Ilina
• Keywords: Aluminum Sulfate, Average Density, Basalt Fiber, Calcium Carbonate, Dispersion, Gas-Gypsum, Glass Fiber, Setting Retarder, Setting Time, Thermal Conductivity

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