Course Details

Physics of Building Materials

Academic Year 2022/23

BJA009 course is part of 1 study plan

BPC-SI Summer Semester 1st year

The subject contents is divided into three parts. The part of physical properties of materials, of building mechanics and of the moisture propagation. Further to getting knowledge for students the theory of this subject is extended to general information of physics, knowledge of building materials using some mathematical procedures.
In the subject PBM especially the theory of heat transfer, of vapour diffusion and of humidity propagation and the air penetration through the structure of building materials is discussed with respect to the specific properties of this materials. Included is the non-homogenous arrangement in building fragments under steady and dynamic influence of the surroundings. By general principles of heat and moisture transfer the standard evaluation criteria of building structures are explained. The main principles of building structures and buildings proposals are included as well. The program of the subject contains chapters concerning experimental possibilities of the determination of material properties of building materials, the documentation of standard and binding properties for the proposal. The exercise has partly a laboratory and partly a calculation character.

Course Guarantor

doc. Ing. Jiří Zach, Ph.D.

Institute

Institute of Technology of Building Materials and Components

Objective

Theory of physical and utility properties of building materials in the state of placing into building structures, interaction of used building materials with surrounding materials. Physical effects of building structures oriented on heat technical problems of buildings, moisture propagation in buildings, formation of internal microclimate, effect on environment, utilization of alternative heat sources, heat demand of building

Knowledge

The student would manage the goal of the subject by acquiring the knowledge on the theory of physical and end-use properties of construction materials in the state of incorporating them into the building structures, interaction of used building materials with surrounding materials, physical exposure of building structures with the focus on heat engineering of buildings, moisture diffusion in buildings, creating of internal microclimate in buildings, impact on the environment, use of alternative heat sources and heat intensity of buildings.

Syllabus

1. Laws of heat transfer in building materials.
2. Heat-technical properties of building materials.
3. The condition of the material, heat-insulating properties of building materials.
4. Air, air layers, thermal-insulation properties of air layers.
5. Stationary and non-stationary heat transmission.
6. Thermal bridges, hygienic criterion of their effect.
7. Moisture sources in building structures.
8. Humid air, air vapour diffusion.
9. Moisture properties of materials.
10. Annual moisture balance.
11. Evaluation criteria of building structures. Normative conditions of national and European technical legislation.
12. Air permeability, infiltration.
13. Thermal stability, energetic demands of building structures. Experimental heat-technical methods.

Prerequisites

Knowledge of physics, numerical mathematics, theory of building materials. Improved knowledge of applied physics.

Language of instruction

Czech

Credits

4 credits

Semester

summer

Forms and criteria of assessment

course-unit credit and examination

Specification of controlled instruction, the form of instruction, and the form of compensation of the absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Offered to foreign students

Not to offer

Course on BUT site

https://www.vut.cz/en/students/courses/detail/255908

Lecture

13 weeks, 2 hours/week, elective

Syllabus

1. Laws of heat transfer in building materials.
2. Heat-technical properties of building materials.
3. The condition of the material, heat-insulating properties of building materials.
4. Air, air layers, thermal-insulation properties of air layers.
5. Stationary and non-stationary heat transmission.
6. Thermal bridges, hygienic criterion of their effect.
7. Moisture sources in building structures.
8. Humid air, air vapour diffusion.
9. Moisture properties of materials.
10. Annual moisture balance.
11. Evaluation criteria of building structures. Normative conditions of national and European technical legislation.
12. Air permeability, infiltration.
13. Thermal stability, energetic demands of building structures. Experimental heat-technical methods.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

1. Introductory exercise requirements for completion of the course, safety rules for the implementation of practical laboratory exercises.
2. Testing of thermal conductivity of Bock's method.
3. Testing of the coefficient of thermal conductivity.
4. Testing of distribution of temperature field electrical analogue method.
5. Testing of temperature attenuation and phase delay in the wall.
6. Testing of relative humidity and moisture determination porous sample construction materials using the indirect method.
7. Solving and assessment of the thermal resistance of the multilayer wall.
8. Calculation thermal resistance of the air layer.
9. Calculation temperature attenuation structures.
10. Risk calculation of internal moisture accumulation in the wall.
11. Calculation intensity of internal condensation in the wall.
12. Years moisture balance in the wall.
13. Completation of obligations in the exercise test.