Course Details

Durability of Building Materials

Academic Year 2025/26

NJA035 course is part of 1 study plan

​ NPC-SIM Summer Semester 1st year

Course Guarantor

prof. Ing. Rostislav Drochytka, CSc., MBA, dr. h. c.

Institute

Institute of Technology of Building Materials and Components

Language of instruction

Czech

Credits

5 credits

Semester

summer

Forms and criteria of assessment

course-unit credit and examination

Offered to foreign students

Not to offer

Course on BUT site

https://www.vut.cz/en/students/courses/detail/295844

Lecture

13 weeks, 2 hours/week, elective

Syllabus

  • 1. Familiarization with problems of corroded buildings, durability, degradation.
  • 2. Reasons of failures and defects of separate building materials.
  • 3. Types of corrosive (aggressive) medium. Selection of adequate building materials, kinds of waters corroding the reinforced concrete structures.
  • 4. Kinds of gaseous media, effect of solid material, mineral greases and oils etc. Mechanism of volume changes.
  • 5. Explanation of chemical micro-structural and mechanical changes during degradation and corrosion.
  • 6. Reinforced concrete degradation initiated by the effect of aggressive media.
  • 7. Degradation of building materials initiated by the effect of aggressive media.
  • 8. Corrosion of metals.
  • 9. Galvanic corrosion and the measuring methods.
  • 10. Primary protection of building materials, influence of composition and of production technology.
  • 11. Secondary protection of concrete. Surface treatments improving the resistance of building structures against aggressive media – classification.
  • 12. Surface treatments – properties, testing methods, failures and defects, prognosis of surface treatment service life.
  • 13. Methods of building materials durability determination including the possibilities of protection. Prognosticating possibility of building materials durability.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

  • 1. Introductory lesson, work safety, laboratory regulations, preparation of samples for laboratory tests.
  • 2. Basics of the issue of corroded buildings, durability, degradation. Preparation of other samples for laboratory tests
  • 3. Calculation determination of building materials.
  • 4. Determination of influence of different types of cements on degradation by acids.
  • 5. Determination of influence of different types of cements on degradation of cement composites by organic acids of low concentration and other corrosive chemicals.
  • 6. Comparison of influence of fluid and gaseous environment on cement composites and metals.
  • 7. Secondary protection of concretes, surface treatment improving durability of structures against corrosive media – division, properties, methods of testing, flaws and failures, calculation of durability prognoses, effectivity.
  • 8. Comparison of influence of liquid and gaseous media on paint systems on different bases.
  • 9. Determination of effect of secondary surface protection based on different binders against corrosive media.
  • 10. Influence of chlorides on corrosion of reinforcement in RC concretes, theory, preparation of samples.
  • 11. Influence of chlorides on corrosion of reinforcement in RC concretes, calculation models according to EU standards, measurements on samples.
  • 12. Excursions.
  • 13. Checking results, protocols, consultation, granting the credit.