Durability of non-metallic materials

NAME OF THE COURSE Durability of non-metallic materials

Code

KTL305

Year of study

3.

Course teacher

Prof Jelica Zelić

Credits (ECTS)

6.0

Associate teachers

Type of instruction (number of hours)

P S V T

30

0

26

4

Status of the course

Mandatory

Percentage of application of e-learning

0 %

COURSE DESCRIPTION

Course objectives

Acquiring basic theoretical knowledge about the processes of decay and corrosion in the resistance and durability assessment of commercial inorganic non-metallic materials under natural conditions of their application

Course enrolment requirements and entry competences required for the course

Materials in cnstruction engineering, Corrosion and protection of metals

Learning outcomes expected at the level of the course (4 to 10 learning outcomes)

After passing the exam the student is expected to know:
- Distinguish the mechanism of corrosion of metals and non-metals
- Categorize the types of chemical corrosion of concrete, mortar and cement composites as a result of the interaction of concrete (mortar, cement composite) and aggressive environment
- A model to explain the chemical action of seawater on concrete or reinforced concrete
- Assess the impact of atmospheric corrosion and deterioration of technical and decorative stone
- To predict the effects of alkali-aggregate reaction
- Assess the impact of pozzolanic additives and other additives (for example, finely ground limestone) on the prevention of corrosion and improve the durability of concrete, mortar and cement composites
- Explain the process of wear and / or corrosion of technical glass surface under the influence of atmospheric
- Apply the methods of testing the impact of the aggressive environment on the durability of structures
- Evaluate and propose protection measures in order to improve the durability of selected inorganic non-metallic materials.

Course content broken down in detail by weekly class schedule (syllabus)

1st week : Description and view the contents of the case. Economic and ecological significance of material protection. Types of corrosion and destructive phenomena in corrosion of metals and non-metals.
2nd week : Technical important non-metallic inorganic materials . The relationship of the structure and properties of materials in the evaluation of their resistance and durability of the natural conditions of their application.
3rd week : Influencing factors in the breakdown structure of concrete , mortar and cement composites . Types and mechanisms of chemical corrosion depending on the aggressive environment.
4th week : Chemical corrosion in soil , seawater and process industry . Selected examples of chemical corrosion betoba and reinforced concrete structures. Sulfuric corrosion, products and effects of concrete corrosion
5th week : Influence of cement , sulphate concentrations , types of cations bonded to the sulfate ion , temperature and exposure time on corrosion rate of concrete.
6th week : Test methods . Protection measures in practice .
7th week : New composite materials with high corrosion resistance and durability .Repetition of material . Examination (I colloquium ) .
8th week : Rocks. Definition. Division. The structure of the stone and the application
9th week : Influencing factors in the breakdown of the structure of technical and decorative stone . Types and mechanisms of chemical corrosion depending on the aggressive environment . Alkali- silica reaction . Causes and consequences .
10th week : Chemistry emergence of ”black crust ” on the rock carbonate origin ( limestone, marble ) and wear of the stone under the influence of environmental factors (H2O , SO2 , CO2 , soot ) . Mediterranean patina . Hypothesis formation.
11th week : Test methods . Protection measures in practice.
12th week : Glass. Definition. Composition of technical glass. Holders of the structure and types of technical glass.
13th week : The kinetics and mechanism of wear and / or corrosion of the glass surface by weathering . Hydration and hydrolysis of Na- silicate glass.
14th week : Hydrolytic resistance of glass . Test methods. Protection measures.
15th week : Repetition . Examination (II colloquium).
EXERCISES :
1. Determination of sulphate resistant cement mortar samples in a solution of Na2SO4
a) without replacement supplements
b ) to the alternate addition of siliceous
c ) to the alternate addition of finely ground limestone
by measuring the strength ( compressive and flexural ) cement mortar , modulus of elasticity, volume due to swelling, and amounts of the unleached calcium hydroxide.
2. Determination of sulphate resistant cement mortar samples in a solution of MgSO4
a) without replacement supplements
b ) to the alternate addition of siliceous
c ) to the alternate addition of finely ground limestone
by measuring the strength (compressive and flexural ) cement mortar, modulus of elasticity, volume change due to swelling, and amounts of the unleached calcium hydroxide.
3. Determination portlandita methods of thermal analysis (DTA / TG) in the hydrated cement mortar samples with and without pozzolanic additions.
4. Testing effect of acid on different types of rocks. Testing of alkali - aggregate reaction.
5. Characterization of ” Mediterranean patina ” on the rock carbonate origin FTIR method.
6. Determination of hydraulic resistance of technical glass.
7. Visual observation of objects on the ground, and field trials.
8. Seminar essay

Format of instruction:

Student responsibilities

 

Screening student work (name the proportion of ECTS credits for eachactivity so that the total number of ECTS credits is equal to the ECTS value of the course):

Class attendance

1.0

Research

0.0

Practical training

0.0

Experimental work

1.0

Report

0.0

 

 

Essay

0.0

Seminar essay

1.0

 

 

Tests

1.0

Oral exam

1.0

 

 

Written exam

1.0

Project

0.0

 

 

Grading and evaluating student work in class and at the final exam

The entire test can be applied over two exams during the semester. Passing threshold is 60%. Each colloquium in assessing participates with 45%. Lectures presence of 80 to 100% is 10% marks. The examination periods there is a written and oral exam. Passing threshold is 60%. Passing one colloquium (previous activity) is true in the summer examination period with a share of 10% in the assessment. Written exam has a share of 40% and 50% verbal. Students who have not passed the exam by tests take the examination through written and oral exams in the regular examination period. Passing threshold is 60% and the examination form to participate in the evaluation by 50%.
Rating: 60% -70% - satisfactory, 71% -81% - good, 82% -92% very good, 93% -100% - excellent.

Required literature (available in the library and via other media)

Title

Number of copies in the library

Availability via other media

J. Zelić, Z. Osmanović, Čvrstoća i trajnost cementnih kompozita, Kemijsko-tehnološki fakultet Sveučilišta u Splitu, 2014. (u postupku recenzije)

1

www.ktf-split.hr

J. Zelić, Praktikum iz procesa anorganske industrije, Kemijsko-tehnološki fakultet u Splitu, Split, 2013.

1

www.ktf-split.hr

Z. Osmanović, J. Zelić, Proizvodnja Portland-cementa, univerzitetski udžbenik, Univerzitet u Tuzli,Tuzla, 2011.

5

www.knjiga.ba http://www.knjiga.ba/proizvodnja_portlandj_cem

Optional literature (at the time of submission of study programme proposal)

J. Zelić, Engineering of Selected Inorganic Materials, sveučilišni udžbenik (na engleskom jeziku), Sveučilište u Splitu u Splitu, Split, 2013. , u postupku recenzije
J. Zelić, Engineering of Selected Inorganic Materials/Inženjerstvo odabranih anorganskih materijala, Kemijsko-tehnološki fakultet u Splitu, Split, 2013. http:// www.ktf-split.hr/bib/nm/Inzenjerstvo_odabranih_anorganskih_materijala_en.pdf
R. A. McCauley, Corrosion of Ceramics Materials, 3rd Ed., CRC Press, 2013.

Quality assurance methods that ensure the acquisition of exit competences

- monitoring of students suggestions and reactions during semester
- students evaluation organized by University

Other (as the proposer wishes to add)