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| INSL7260 | Concrete in Sulfate-Bearing Environments | 3+0+0 | ECTS:7.5 | | Year / Semester | Spring Semester | | Level of Course | Third Cycle | | Status | Elective | | Department | DEPARTMENT of CIVIL ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face, Lab work , Practical | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Şakir ERDOĞDU | | Co-Lecturer | None | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The aim of the course is to accentuate the aspects of interaction between sulfates and cement phases of concrete subjected to sulfate-bearing environments, state the reaction products occur, and underline the deterioration mechanisms of concrete in such exposure conditions. |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | get acquainted with the deteriorative mechanisms of concrete exposed in sulfate bearing environments. | 1,9 | 1 | | PO - 2 : | learn the reactions and the resulting products taking place between the constituents of concrete and seawater. | 1,5 | 1 | | PO - 3 : | identify the reaction products causing expansion in concrete. | 1,2,5,11 | 1 | | PO - 4 : | identify the correlation between sulfate attack and the performance of concrete. | 1,9 | 1 | | PO - 5 : | evaluate the extent of sulfate attack on concrete and be able to take measures to control it. | 1,2,5 | 1,3 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| The source of sulfates. The reaction between sulfates and the constituents of cement and the reaction products. The hydrolysis of hydration products and leaching. Cation exchange reactions. Expansive nature of reaction and the resulting products. The influence of sulfate attack on the performance of concrete. Determination of the extent of sulfate attack and its control. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Sulfate bearing environments. Interaction with materials. | | | Week 2 | The nature of concrete and its permeability. | | | Week 3 | The deterioration modes of cocnrete exposed in deleterious environments. | | | Week 4 | The importance of salt crystallization inm relation with concrete. | | | Week 5 | Feeze-thaw effect on cocnrete and its prevention. | | | Week 6 | Scaling of concrete and the causes of scaling. | | | Week 7 | Chemical deterioration of concrete and the associated reactions. | | | Week 8 | The hydrolysis of cement constituents and related structural damage. | | | Week 9 | Mid-term exam | | | Week 10 | Cation exchange reactions due to sulfate attack. | | | Week 11 | Sulfate attack and the associated reaction products. | | | Week 12 | Alkali-aggregate reaction and the associated products. | | | Week 13 | Prevention of alkali-aggregate reaction. | | | Week 14 | Hydration of crystalline structured MgO and CaO. | | | Week 15 | Delayed ettringite formation. | | | Week 16 | End-of-term exam | | | |
| 1 | Skalny, J., Marchand, J., Odler, I., 2002, Sulfate Attack on Concrete. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | | 2 | 30 | | Quiz | 12 | | 1 | 20 | | End-of-term exam | 16 | | 2 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 1 | 14 | 14 | | Laboratuar çalışması | 1 | 14 | 14 | | Arasınav için hazırlık | 4 | 8 | 32 | | Arasınav | 2 | 6 | 12 | | Uygulama | 1 | 14 | 14 | | Klinik Uygulama | 0 | 0 | 0 | | Ödev | 4 | 4 | 16 | | Proje | 0 | 0 | 0 | | Kısa sınav | 4 | 2 | 8 | | Dönem sonu sınavı için hazırlık | 8 | 8 | 64 | | Dönem sonu sınavı | 2 | 8 | 16 | | Diğer 1 | 0 | 0 | 0 | | Diğer 2 | 0 | 0 | 0 | | Total work load | | | 232 |
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