Course Details
Concrete Rheology
Academic Year 2025/26
Course Guarantor
Institute
Language of instruction
Czech
Credits
8 credits
Semester
winter
Forms and criteria of assessment
examination
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 3 hours/week, elective
Syllabus
- 1. Introduction into problems. Definition of rheological phenomena. Newtonian and non-Newtonian liquids. Stream laws. Description of rheological behaviour of the cement paste.
- 2. Rheometry of cement pastes. Types of viscosimeters and rheometers. Advantages and disadvantages.
- 3. Rheological model of concrete. Components of concrete and effect of their properties on rheological behaviour of fresh concrete and of cement composites.
- 4. Compatibility of cement and plasticizing admixtures in concrete. Models of plasticizing admixtures influence.
- 5. Technological effects on concrete rheology. Problems with fresh concrete rheological behaviour (bleeding, sedimentation). Consistency measuring in concrete technology.
- 6. Processing of fresh concrete. Pumping of concrete.
- 7. Water and air pressure in pores. Compacting. Theory of compacting by vibration. Isostatic pressing.
- 8. Self compacting concrete. Self leveling putty paste.
- 9. Particular substances. Shape and surface of grains. Grain size composition. Connections between particles of the particular system.
- 10. Concrete properties as function of porosity, improving of cement concrete by intensification of microstructure. Porous structure of hardened concrete.
- 11. High performance concrete.
- 12. Post-forming of concrete.
- 13. Fibre – concrete. Light concrete. Pumping of light concrete. Self compacting light concrete.