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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29381


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10001166
Thermal Insulating Silicate Materials Suitable for Thermal Insulation and Rehabilitation Structures
Abstract:
Problems insulation of building structures is often closely connected with the problem of moisture remediation. In the case of historic buildings or if only part of the redevelopment of envelope of structures, it is not possible to apply the classical external thermal insulation composite systems. This application is mostly effective thermal insulation plasters with high porosity and controlled capillary properties which assures improvement of thermal properties construction, its diffusion openness towards the external environment and suitable treatment capillary properties of preventing the penetration of liquid moisture and salts thereof toward the outer surface of the structure. With respect to the current trend of reducing the energy consumption of building structures and reduce the production of CO2 is necessary to develop capillary-active materials characterized by their low density, low thermal conductivity while maintaining good mechanical properties. The aim of researchers at the Faculty of Civil Engineering, Brno University of Technology is the development and study of hygrothermal behaviour of optimal materials for thermal insulation and rehabilitation of building structures with the possible use of alternative, less energy demanding binders in comparison with conventional, frequently used binder, which represents cement. The paper describes the evaluation of research activities aimed at the development of thermal insulation and repair materials using lightweight aggregate and alternative binders such as metakaolin and finely ground fly ash.
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References:

[1] J. Zach, R. Hela, J. Hroudova, J. “Development of thermal-insulating plasters intended for saving the historical objects,” In The 10th International Conference Modern building Materials, Structures and Techniques - Selected papers, vol. 1. Lithuania, VGTU, 2010, pp. 335– 339.
[2] J. Zach, A. Korjenic, J. Hroudová, ”Study of behaviour of advanced silicate materials for heating and moisture rehabilitation of buildings,” Advanced Materials Research, vol. 649, 2013, pp. 167–170.
[3] J. Hroudova, J. Zach, R. Hela, A. Korjenic, ”Advanced, Thermal Insulation Materials Suitable for Insulation and Repair of Buildings,” Advanced Materials Research, vol. 688, 2013, pp. 54–59.
[4] L. Courard, A. Darimont, M. Schouterden, F. Ferauche, X. Willem, R. Degeimbre, “Durability of mortars modified with metakaolin,”Cement and Concrete Research, vol. 33, Issue 9, 2003, pp. 1473–1479.
[5] R. Cerny, A. Kunca, V. Tydlitat, J. Drchalova, P. Rovnanikova, “Effect of pozzolanic admixtures on mechanical, thermal and hygric properties of lime plasters”, Construction and Building Materials, vol. 20, Issue 10, 2006, pp. 849–857.
[6] EN 1015-1 Methods of test for mortar for masonry. Determination of particle size distribution (by sieve analysis), 2006, CEN.
[7] EN 1015-2 Methods of test for mortar for masonry. Bulk sampling of mortars and preparation of test mortars, 2006, CEN.
[8] EN 1015-6 Methods of test for mortar for masonry. Determination of bulk density of fresh mortar, 2006, CEN.
[9] EN 1015-3 Methods of test for mortar for masonry. Determination of consistence of fresh mortar (by flow table), 2006, CEN.
[10] EN 1015-10 Methods of test for mortar for masonry. Determination of dry bulk density of hardened mortar, 2006, CEN.
[11] EN 1015-11 Methods of test for mortar for masonry. Determination of flexural and compressive strength of hardened mortar, 2006, CEN.
[12] ISO 8301 Thermal insulation -- Determination of steady-state thermal resistance and related properties -- Heat flow meter apparatus, 2010, Geneva.
[13] EN 1015-18 Methods of test for mortar for masonry. Determination of water absorption coefficient due to capillary action of hardened mortar, 2002, CEN.
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