HYDRATION OF CEMENTITIOUS MATERIALS

Lecturer: prof. Karen Scrivener
Date: September 14, 2019
Time: 9:00 – 15:30
Price: EUR 40/ per person incl. VAT

Programme:

Lecturers:  
Prof. Dr. Karen Scrivener, EPFL, Switzerland
Dr Barbara Lothenbach, EMPA, Switzerland
Dr Ruben Snellings, VITO Belgium
09:00-09:30  Context and overview of hydration: 
Why Portland Cement will continue to be dominant
How hydration works and overview of reactions
K. Scrivener (EPFL, Switzerland)
09:35-10:05   Hydrate phases: Part 1 Basics and C-S-H:
Importance of C-S-H
Our current state of knowledge on atomistic structure
Mesoscopic structure, granular or nanocrystalline
Microstructures
K. Scrivener (EPFL, Switzerland)
10:10-10:20 aluminium in C-S-H:
B. Lothenbach (EMPA, Switzerland)
10:20-10:40 Break
10:40-11:20 Hydrate phases: Part 2 Other hydrates:
Hydrates from aluminate and ferrite phases
R. Snellings (VITO Belgium)
11:25-12:10 Thermodynamic modelling:
Prediction of phase assemblages.
Simplified phase diagram
Thermodynamic modelling, principles and examples
B. Lothenbach (EMPA, Switzerland)
12:10-13:00 LUNCH
13:00-13:40 Mechanisms: Induction period and Main peak:
State of the art: theories of mechanisms controlling hydration,
Geochemical perspectives
New findings on early hydration
Mechanisms controlling acceleration and deceleration
K. Scrivener (EPFL, Switzerland)
13:45-14:25 Mechanisms: Later ages and Microstructure:
Mechanisms governing hydration after first day
Reaction of aluminate phases / optimum sulfate
Microstructure, relation to property development
K. Scrivener (EPFL, Switzerland)
14:30-15:00 Impact temperature and relative humidity
B. Lothenbach (EMPA, Switzerland)
15:00-15:30 Further questions / Open discussion