Course detail

Physics of Building Materials

FAST-BJ006Acad. year: 2018/2019

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.

Department

Institute of Technology of Building Materials and Components (THD)

Learning outcomes of the course unit

Basic knowledge about the physical properties of building materials, theory of heat and moisture propagation in porous, non porous building materials, air layers. After completing the course the student should independently handle the description of the heat-insulating effect of film structures, explain the effectiveness of different material layers, define the utility of building materials for existing and future buildings due to the expected energy requirements of the building, to define the risk of accumulation of internal moisture in the walls and also to assess some special effects of building structures due to the current trend of insulation. According to the structural properties of construction materials to assess their thermal insulation and moisture-conduction capability. In this course students will learn the principles of alternative energy sources for the supply of buildings, current trends in the construction industry. Students become acquainted with the heat building diagnostics and experimental methods.

Prerequisites

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

Co-requisites

This subject is studied in parallel with the subject BJ07 - Insulating materials. This parallelism allows students to provide an overview of the thermal insulation and acoustic properties of materials, students lectures on the theory of the sound waves in building materials and building structures.

Recommended optional programme components

Not applicable.

Recommended or required reading

Not applicable.

Planned learning activities and teaching methods

The course is taught through lectures, practical classes and self-study assignments. Attendance at lectures is optional, but attendance at classes is compulsory.

Assesment methods and criteria linked to learning outcomes

In the labs, students hand in leading exercise 5 reports on the physical measurements and a test.
The test has compulsory written part where the student demonstrates the ability to resolve two separate examples of the theory of heat and humidity. To proceed to compulsory oral is necessary to achieve at least a three points of 6 possible. To pass the oral examination is necessary to answer two questions in the case of a tie, a student asked additional questions.

Language of instruction

Czech

Work placements

Not applicable.

Course curriculum

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.

Aims

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

Specification of controlled education, way of implementation and compensation for absences

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

Classification of course in study plans

  • Programme B-K-C-SI (N) Bachelor's

    branch M , 3. year of study, summer semester, 5 credits, compulsory

  • Programme B-P-E-SI (N) Bachelor's

    branch M , 3. year of study, summer semester, 5 credits, compulsory

  • Programme B-P-C-SI (N) Bachelor's

    branch M , 3. year of study, summer semester, 5 credits, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

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.

seminars

26 hours, compulsory

Teacher / Lecturer

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.solwing 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.