COURSE UNIT TITLE

: DURABILITY OF CONCRETE

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
CIE 5154 DURABILITY OF CONCRETE ELECTIVE 3 0 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR DOCTOR HALIT YAZICI

Offered to

CONSTRUCTION MATERIALS
CONSTRUCTION MATERIALS
CONSTRUCTION MATERIALS

Course Objective

One of the major problems involved in concrete is the lack of durability which results
in premature failures of concrete structures. Water is generally involved in every form
of concrete deterioration as well as the permeability of the material to water which
determines its rate of deterioration. Therefore, the nature of concrete, the structure
of water and its destructive effects on concrete are discussed.

Learning Outcomes of the Course Unit

1   to be able to determine the possible effects concrete pores in concrete according to their size and shape in terms of durability.
2   to be able to classify the causes of concrete/reinforced concrete deterioration due to physical and chemical actions.
3   to be able to identify the possible causes of cracks in concrete/reinforced concrete structures in terms of durability problems.
4   to be able to explain the mechanisms of chemical attacks on concrete that causes durability problems.
5   to be able to recommend methods of producing concrete resistant against physical deteriorative effects such as abrasion, fire and frost..
6   to be able to classify the possible precautions to increase the durability of concrete/reinforced concrete structures according to the level of external influence.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 The nature of concrete 1.1. Structure of the aggregate phase 1.2. Structure of the hydrated cement paste 1.2.1. Calcium silicate hydrate 1.2.2. Calcium hydroxide 1.2.3. Calcium sulfoaluminates 1.2.4. Unhydrated cement 1.2.5. Voids in hydrated cement paste 1.2.6. Water in hydrated cement paste
2 Transition zone in concrete 2.1. Structure of transition zone 2.2. Strength of transition zone 2.3. Ibfluence of transition zone on the properties of the concrete
3 Water as an agent of deterioration 3.1.Structure of water 3.2. Mechanism of action
4 Permeability 4.1. Permeability of cement paste 4.2. Permeability of aggregate 4.3. Permeability of concrete
5 Classification of the causes of concrete deterioration 5.1. Deterioration by surface wear 5.2. Cracking by Crystallization of salts in pores
6 Deterioration by frost action 6.1. Frost action on hardened concrete 6.2. Frost action on aggregate 6.3. Factors controlling frost resistance of concrete 6.4. Concrete scaling
7 7.1. Effect of high temperature on cement paste 7.2. Effect of high temperature on aggregate 7.3. Effect of high temperature on concrete
8 Other phisical effects
9 Chemical reactions 9.1. Hydrolysis of cement paste components 9.2. Cation exchange reactions
10 Reactions involving formation of expansive products 10.1. Sulfate attack 10.1.1. Chemical reactions involved 10.1.2. Control of sulfate attack
11 Reactions involving formation of expansive products (cont.) 11.1. Alkali-silicate Reaction 11.1.1. Cement and aggregate types contributing to the reaction 11.1.2. Mechanism of expansion 11.1.3. Control of expansion
12 Reactions involving formation of expansive products (cont.) 12.1. Hydration of Crystalline MgO and CaO 12.2. Alkali-cabonate Reaction 12.1.1. Cement and aggregate types contributing to the reaction 12.1.2. Mechanism of expansion 12.1.3. Control of expansion
13 Corrosion of Embedded Steel in concrete 12.1. Mechanism of concrete deterioration by corrosion of reinforcement 12.2. Control of corrosion
14 Effect of seawater on concrete and reinforced concrete

Recomended or Required Reading

Sunumlar http://halityazici-deu.com/
Beton ve Betonarmede Kalıcılık, Baradan B, Yazıcı H, Ün H, THBB Yayınları 2010
Neville, A., M., Properties of Concrete Pitman Publishing, London 1995.
Supplementary Book(s): - Woods, H., Durability of Concrete Construction, ACI Monograph
No.4, 1968. -Mindess, S., and Young J.F., Concrete, Prentice-Hall Inc., Englewood
Cliffs, 1981.

Planned Learning Activities and Teaching Methods

Lecture slides (given as powerpoint presentations), experimental studies, preparation
of project report and final presentation at the end of semester will be used in
evaluation. Relevant articles and book chapters should be read prior to course of
individual week.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.25 + ASG *0.25 +FIN *0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.25 + ASG *0.25 +RST *0.50


Further Notes About Assessment Methods

Laboratory work and project will be evaluated with homework assignments.

Assessment Criteria

All learning outcomes will be evaluated by using the midterm and final exam questions.
In addition, student comments in lectures, their presentations related with
experimental project reports will be taken into consideration.

Language of Instruction

English

Course Policies and Rules

Laboratory and classroom attendance also will be considered in evaluation.

Contact Details for the Lecturer(s)

Prof. Dr. Halit YAZICI (halit.yazici@deu.edu.tr)

Office Hours

Will be announced at the beginning of semester.

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 14 3 42
Preparation before-after PBL/lectures 13 3 39
Preparation for midterm exam 1 20 20
Preparation for final exam 1 20 20
Preparing assignments 1 20 20
Design Project 1 35 35
Preparing presentations 1 22 22
Midterm 1 2 2
Final 1 2 2
TOTAL WORKLOAD (hours) 202

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11
LO.123
LO.2233
LO.3223
LO.43333
LO.543343
LO.6233

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Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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