Production of Water-Resistant, Strong Silicate Materials Based on Natural and Industrial Raw Materials
Abstract
The paper proposes the production technique for silicate building materials of non-autoclave hardening which possess high strength and water resistance. The raw material comprises liquid glass, caustic lime, microsilica or diatomite filler. Based on the interaction between liquid glass and Са2+ ions releasing during its contact with caustic lime (dry CaO), a new binding material is obtained. it represents a mixture of hydrated calcium silicate and silica gel which is in a viscous-plastic state. Research results are obtained concerning the influence of the liquid glass compositions on mechanical-and-physical properties of synthesized materials. The schematic of physicochemical mechanism is proposed for CaO-Na2O × 3SiO2 × n Н2О system. Ecological and economic advantages of this method over other liquid glass compositions are described for proposed silicate materials. This method allows to simplify the liquid glass composition, reduce its cost, improve water resistance and ensure environmental safety. The resulting silicate materials can be used in the production of putty, acid-resistant concrete, and use them as insulating materials in construction products of various purposes.
About the Authors
Ol'ga D. Lukashevich
Тоmsk State University of Architecture and Building
Russian Federation
Russian Federation
Vasilii A. Lotov
National Research Тоmsk Polytechnic University
Russian Federation
Russian Federation
Nadezhda T. Usova
National Research Тоmsk Polytechnic University
Russian Federation
Russian Federation
Viktor N. Lukashevich
Тоmsk State University of Architecture and Building
Russian Federation
Russian Federation
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Review
For citations:
Lukashevich O.D., Lotov V.A., Usova N.T., Lukashevich V.N. Production of Water-Resistant, Strong Silicate Materials Based on Natural and Industrial Raw Materials. Vestnik of Tomsk state university of architecture and building. 2017;(6):151-160. (In Russ.)
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