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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Soldatov D.A. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Khozin V.G. – doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleHeat-insulating materials on the basis of straw
Abstract.Straw bale house building is a perspective technique. First of all it is connected with the low level of construction costs and the simplicity of construction. In practice various variants of heat-insulating materials from straw can be implemented: 1. stitched mats, fixed with a steel wire; 2. pressed slabs on the basis of recycled fibrous straw; 3. pressed slabs from bales of straw; 4. pressed slabs on the basis of chopped straw. Pressed slabs on the basis of chopped straw with the use of binders, according to their technological, exploitative, technical and economic indicators, are considered to be the most promising in comparison with the stitched mats and slabs, made on the basis of processed thermal and thermo-chemical way of fibrous straw. As the binder in heat insulating materials was analyzed liquid glass and «silica sol» – highly modular liquid glass, that differs from each other by viscosity, silicate module and a dry matter content. On the basis of the obtained experimental data various variants of the production technology of heat-insulating slabs on the basis of chopped straw and liquid glass as a binder are worked out. First variant is the conveyor line, where the carpet continuously fit on the tape, passes thermal processing in the tunnel camera and is cut on the slabs of the desired size. Second variant is the aggregate-production line. The raw material mass is fitted in the form with fixed lids, which are served in the kiln or to a multi-press hot type. At the end of the process of thermal treatment strip of finished products cleaning and preparation of forms is performed, and the process is repeated. This technology is the simplest in manufacturing, service and can be the most widespread way in small enterprises. For technical specifications, the boards of chopped straw close to the boards of the increased rigidity of mineral cotton wool, but they surpass them on durability, water resistance, sanitary-and-hygienic indicators. Being fire resistant substance, enough water resistant, relatively stable and, at the same time, with effective insulation characteristics, developed materials can be recommended for application for thermal insulation of buildings.
Keywords.Straw, thermal conductivity, straw bales, organic and non-organic binders.
For citations:Soldatov D.A., Khozin V.G. Heat-insulating materials on the basis of straw // Izvestiya KGASU. 2013. №1(23) P.197-201.


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