The project will solve problems of research of transportation of heat and humidity within the structure of advanced silicate based thermo-insulating plasters.Proposed subject matter of the project is closely related to basic long-term aims of the countries of EU in the field of Research and Development, in particular reduction of energy demands of building structures and building development of structures with energy consumption close to zero.
The project will be solved by two teams, one on Austrian and one on the Czech side (in accordance with the principles of 7RP, specific programs Ideas and Cooperation). Experience of both teams will join to solve the project complexly (the Technical University in Brno focuses on experimental material research, the Technical University in Wien focuses on construction research and computational simulations).
Knowledge, equipment and experience of both partner locations will be utilized.The project will involve young research workers up to 35 years of age on both sides; both men and women will be involved equally in accordance with the principles of the specific program Ideas 7RP.As regards the solution as such, the project will be divided into several stages:
- Stage
1: Selection of appropriate mix-designs of test specimens based on results of previous research carried out by both locations in cooperation.Mix-designs of hydrophilic and hydrophobic plasters of various volume weights will be selected.Materials with low volume weight will show better thermo-insulating properties, materials with higher volume weight will show better mechanical properties.Test specimens will be made.
- Stage
2: Determination of basic physical and mechanical properties.Test specimens will be subjected to determination of selected key properties.In particular, volume weight, porosity, thermal conductivity coefficient, diffusion resistance factor and capillary absorption coefficient will be determined.To verify further properties, mechanical properties will be determined:compressive strength, tensile bending strength and bond strength to base material.Measurements will be carried out by both locations.
- Stage
3: Determination of hydrothermal characteristics. Further, key properties and characteristics important for research of transportation of heat and humidity and consequent computational simulations will be determined.In particular hydrothermal characteristics:thermal conductivity coefficient depending on temperature and humidity, equilibrium of sorptive properties etc.Measurements will be carried out by both locations.
- Stage
4: Computational simulations.Based on results of experiments, material database will be compiled and dependencies of thermal conductivity on temperature and humidity will be evaluated.Construction details suitable for application of advanced thermo-insulation plasters will be selected.Use of plasters for new buildings and for renovation of existing buildings will be tested.Behavior of thermo-insulating plasters with regulated capillary activity in systems of external and internal insulation will be tested.
- Stage
5: Evaluation and formulation of conclusions for use in building practiceAt the end, results of computational simulations will be verified by testing on real buildings, general conclusions will be formulated with aim of utilization in building practice, results will be published on scientific conferences and in scientific periodicals.
