Course detail

Theoretical Basics of Special Building Materials

FAST-NJB042Acad. year: 2021/2022

Water and its influence on building materials, interface between different phases, surface tension, surface adsorption and desorption, sorption isotherm, dispersions, associative colloids, rheological properties of dispersion systems, surfactants – influence on building materials, metakaolin, fly ash, slag, water glass, alkali-activated slag, geopolymers.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Karel Dvořák, Ph.D.

Department

Institute of Technology of Building Materials and Components (THD)

Learning outcomes of the course unit

Not applicable.

Prerequisites

Basics of general and inorganic chemistry, chemical composition of building materials, chemical nomenclature, chemistry and technology of binders.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

Not applicable.

Course curriculum

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.

Work placements

Not applicable.

Aims

Not applicable.

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.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme NPC-SIM Master's 2 year of study, winter semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Karel Dvořák, Ph.D.

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

26 hod., compulsory

Teacher / Lecturer

doc. Ing. Karel Dvořák, Ph.D.

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.