Thermal Insulating Silicate Materials Suitable for Thermal Insulation and Rehabilitation Structures

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.

• J. Hroudova
• M. Sedlmajer
• J. Zach

• Thermal insulating plasters
• rehabilitation materials
• thermal conductivity
• lightweight aggregate
• alternative binders.

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[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
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