Course Details
Theoretical Basics of Special Building Materials
Academic Year 2025/26
NJB042 course is part of 1 study plan
NPC-SIM Winter Semester 2nd year
Course Guarantor
Institute
Language of instruction
Czech
Credits
5 credits
Semester
winter
Forms and criteria of assessment
course-unit credit and examination
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 2 hours/week, elective
Syllabus
- 1. Water – properties and its influence on building materials.
- 2. Interface between phases, surface tension, adsorption.
- 3. Heterogeneous dispersions – stability, rheology.
- 4. Surfactants – plasticizers, foaming and defoaming agents, air entraining agents, shrinkage reducing admixtures.
- 5. Alkali-activated aluminosilicates – raw materials.
- 6. Alkali-activators – water glass, properties.
- 7. Slag – physico chemical properties a mineralogical composition.
- 8. Alkali-activated slag.
- 9. Geopolymers.
- 10. Slag-sulfated cement and slag-lime cement.
Exercise
13 weeks, 2 hours/week, compulsory
Syllabus
- 1. Introduction to the laboratory sessions.
- 2. Determination of the surface tension of water and solutes of different salts and concrete admixtures.
- 3. Determination of critical micelle concentration of air entraining agents.
- 4. Determination of the influence of different plasticizers on the rheological properties of cement paste.
- 5. Effect of water glass dosage on the properties of alkali-activated slag mortar. Specimen preparation and determination of 7 days strength.
- 6. Effect of water glass composition (silicate modulus) on the properties of alkali-activated slag mortar. Specimen preparation and determination of 7 days strength.
- 7. Preparation and testing of metakaolin-based geopolymer properties, determination of the influence of different activator types.
- 8. Effect of the mixing time on the properties of renovation plasters – bulk density, porosity and strength.
- 9. Assessment of efflorescence on geopolymer samples with different composition.
- 10. Credit.