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21385 Laboratory Course in Cement Technology
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Danish title: Cementteknologiske undersøgelsesmetoder
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| Type: Å, Language: DDD |
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Credit points:
5 point |
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| | | Previous course: C3516 |
| Offered by:
Department of Chemistry
(IK) |
| No credit points with: C3202/C3514 |
| Prerequisite: C3300/80251 |
| Recommended semester:
6th semester |
| Limitation: Max. 16 |
| Scope and form: Lectures and exercises, 8 hour/day |
| Examination:
Evaluation of report(s)
(
pass/fail
) |
| Contact person: |
Torben Knudsen, IK, Building 204, Tel. +45 4525 2265 |
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| Aim: To give a broad knowledge of the manufacture and properties of cement, including its use in concrete, the most commonly used construction material of our time. |
Contents: Introductory lectures on general cement technology, phase relationships of water/cement mixtures in 3-componen diagrams and quantification of the course of hydratisation using the dispersion model. Presentation of basic aspects of cement clinker firing, and an introduction to quantification of microscopic observations of polished samples of cement clinker using stereological methods. Introduction to the use of thin sections for the structural analysis of concrete and the identification of causes of damage.
1)Characterisation of cement powders - grading through sedimentation, specific surface using the Blaine method.
2)The rheological properties of water/cement mixtures - additives, normal consistency, bleeding and setting times.
3)Determination of the degree of hydratisation of water/cement by chemical skinsafe X-ray diffraction and thermogravimetry.
4)Strength determination, correlation with sample porosity.
5)Introduction to stereological methods in microscopy, point counting, chord analysis, calculation of uncertainty
6)Explanation of the production of cement clinker - firing conditions, phase diagrams, calculation methods.
7)Determination of the phase composition of cement clinker - characterization of firing conditions
8)Structural analysis using thin sections of concrete samples - identification of certain "concrete diseases", Power distance factor.
9)Introduction to the image analyser for automatic phase analysis.
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