Course Details
Technology of Rehabilitation
Academic Year 2023/24
NJA034 course is part of 1 study plan
NPC-SIM Summer Semester 1st year
Methods of investigation of concrete structures.
Rehabilitation of concrete and reinforced concrete: Influence of technology to the durability of concrete. Surface treatment before application of rehabilitation methods. Rehabilitation materials: Surface treatment materials -types, properties, utilization, classification, gunned concrete and gunned mortar. Grouting. Rehabilitation of failures of water resistant concrete, types. Checking the quality of concrete and reinforced concrete rehabilitation.
Rehabilitation of wet masonry (from bricks, mixed, stone masonry): Basic approach. Chemism of wet masonry, biological effects. Porosity of material, outer surroundings effect. Water effect to objects. Determination of moisture in building structures. Masonry - desalination methods. Methods preventing water effects. Insulation materials.
Wood rehabilitation: kinds of wood material attack. Structure of ridden wood. Determination of the type of attack. Technology of rehabilitation - mechanical, chemical methods. Fire prevention of wood.
Rehabilitation of concrete and reinforced concrete: Influence of technology to the durability of concrete. Surface treatment before application of rehabilitation methods. Rehabilitation materials: Surface treatment materials -types, properties, utilization, classification, gunned concrete and gunned mortar. Grouting. Rehabilitation of failures of water resistant concrete, types. Checking the quality of concrete and reinforced concrete rehabilitation.
Rehabilitation of wet masonry (from bricks, mixed, stone masonry): Basic approach. Chemism of wet masonry, biological effects. Porosity of material, outer surroundings effect. Water effect to objects. Determination of moisture in building structures. Masonry - desalination methods. Methods preventing water effects. Insulation materials.
Wood rehabilitation: kinds of wood material attack. Structure of ridden wood. Determination of the type of attack. Technology of rehabilitation - mechanical, chemical methods. Fire prevention of wood.
Course Guarantor
Institute
Objective
The rehabilitation of reinforced structures is during last 10 years an up-to-date, dynamically developing trend in building industry. The subject-leaver obtains actual information about the whole rehabilitation process i.e. about diagnostics performance of degraded structure (method, tests, evaluation) design of rehabilitation and its execution (technology, materials etc.). A component of execution is also the description of methods and frequency of checking tests during the rehabilitation process and after its end.
The next component of the subject is knowledge concerning rehabilitation of brickwork structures. The student obtains here information about reasons of failures and the possibilities of their rehabilitation. The last component of the subject is the rehabilitation of wood.
The next component of the subject is knowledge concerning rehabilitation of brickwork structures. The student obtains here information about reasons of failures and the possibilities of their rehabilitation. The last component of the subject is the rehabilitation of wood.
Knowledge
The student would acquire knowledge on the whole sanitation process of reinforced, brick and wood structures i.e. on executing the diagnostics of degrade structure (methods, tests, evaluation), sanitation proposal and its execution (technology, materials, etc.), also the description of methodology and frequency of control tests in the course of sanitation process and after its termination.
Syllabus
1. Introduction into the subject. Basic concepts in the field of reinforced concrete rehabilitation.
2. Diagnostics – types of investigation, extents, division and methods of tests.
3. Strategy of concrete rehabilitation – criteria for the selection of adequate materials and technologies.
4. Contents of technical rules for rehabilitation.
5. Methods of concrete and reinforcement pre-treatment.
6.–7. Repair materials for concrete re-profiling, material base, properties, methods of application.
8. Check tests, methods, frequency.
9. Biology of humid masonry, water evaporation from masonry, capillary attraction.
10. Basic concepts. Chemism of humid masonry, biological factors. Materials porosity, effects of external surroundings. Methods of moisture determination in building structures.
11. Water affecting the objects. Checking of humid buildings.
12. Methods of masonry desalting. Methods of moisture rehabilitation – mechanical, chemical. Rehabilitation mortars. Insulating materials.
13. Type of wood material attacks, structure of degraded wood, determination of the type of attack. Technology of wood rehabilitation – mechanical, chemical.
2. Diagnostics – types of investigation, extents, division and methods of tests.
3. Strategy of concrete rehabilitation – criteria for the selection of adequate materials and technologies.
4. Contents of technical rules for rehabilitation.
5. Methods of concrete and reinforcement pre-treatment.
6.–7. Repair materials for concrete re-profiling, material base, properties, methods of application.
8. Check tests, methods, frequency.
9. Biology of humid masonry, water evaporation from masonry, capillary attraction.
10. Basic concepts. Chemism of humid masonry, biological factors. Materials porosity, effects of external surroundings. Methods of moisture determination in building structures.
11. Water affecting the objects. Checking of humid buildings.
12. Methods of masonry desalting. Methods of moisture rehabilitation – mechanical, chemical. Rehabilitation mortars. Insulating materials.
13. Type of wood material attacks, structure of degraded wood, determination of the type of attack. Technology of wood rehabilitation – mechanical, chemical.
Prerequisites
Production and properties of binders (especially cements); types and properties of polymer materials; composition and manufacture of concrete, its testing in fresh and hardened state; laboratory methods for testing of building materials properties.
Language of instruction
Czech
Credits
5 credits
Semester
summer
Forms and criteria of assessment
course-unit credit and examination
Specification of controlled instruction, the form of instruction, and the form of compensation of the absences
Extent and forms are specified by guarantor’s regulation updated for every academic year.
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 2 hours/week, elective
Syllabus
1. Introduction into the subject. Basic concepts in the field of reinforced concrete rehabilitation.
2. Diagnostics – types of investigation, extents, division and methods of tests.
3. Strategy of concrete rehabilitation – criteria for the selection of adequate materials and technologies.
4. Contents of technical rules for rehabilitation.
5. Methods of concrete and reinforcement pre-treatment.
6.–7. Repair materials for concrete re-profiling, material base, properties, methods of application.
8. Check tests, methods, frequency.
9. Biology of humid masonry, water evaporation from masonry, capillary attraction.
10. Basic concepts. Chemism of humid masonry, biological factors. Materials porosity, effects of external surroundings. Methods of moisture determination in building structures.
11. Water affecting the objects. Checking of humid buildings.
12. Methods of masonry desalting. Methods of moisture rehabilitation – mechanical, chemical. Rehabilitation mortars. Insulating materials.
13. Type of wood material attacks, structure of degraded wood, determination of the type of attack. Technology of wood rehabilitation – mechanical, chemical.
Exercise
13 weeks, 2 hours/week, compulsory
Syllabus
1. Introduction exercise. Students are introduced with the laboratory procedure and safety. They are introduced with filling exercise and the conditions for obtaining the credit.
2. Testing of base concrete. Summary of basic tests of physical and mechanical properties of concrete in the context of remediation.
3. Methods used in branch of architectural and engineering research of reinforced concrete structures. Video presentation, demonstration acoustic tracking, pull-off test, etc.
4. Laboratory testing significance polymer dispersion in polymercement composites.
5. Specification of statement for architectural and engineering research of reinforced concrete structures and its realization.
6. Laboratory testing of commercially manufactured repair mortars. Comparison of properties (both fresh and hardened) mortars from reputable manufacturers. Comparison with the requirements of standards.
7. Specification of statement for remediation of specific reinforced concrete structures.
8. Excursion to construction rehabilitated one of the innovative technologies, demonstration remediation "in situ".
9. Laboratory testing salinity masonry. Practical introduction to the methods used to determine the presence of salts (sulfates, chlorides, etc.) in brickwork.
10. Laboratory testing of remediation plaster. Comparison of observed values with those declared by the manufacturer of plaster, the definition of usability improvement plasters.
11. Practical examples of the possibilities of rehabilitation of humid masonry with a focus on injection.
12. Laboratory testing of different types of secondary protection (impregnation, coating, etc.).
13. Credit test, grant of the credit.