Preservation and improvement of wood

Course Information
TitleΣυντήρηση και Βελτίωση Ξύλου / Preservation and improvement of wood
FacultyAgriculture, Forestry and Natural Environment
SchoolForestry and Natural Environment
Cycle / Level1st / Undergraduate
Teaching PeriodWinter
Course ID600019465

Programme of Study: PPS Tmīmatos Dasologías kai Fysikoý Perivállontos (2020-sīmera)

Registered students: 10
OrientationAttendance TypeSemesterYearECTS
Elective CoursesCompulsory Course belonging to the selected specialization (Compulsory Specialization Course)742
Elective CoursesElective Course belonging to the selected specialization (Elective Specialization Course)742
Elective CoursesElective Course belonging to the selected specialization (Elective Specialization Course)742
Elective CoursesElective Course belonging to the selected specialization (Elective Specialization Course)742
Elective CoursesElective Course belonging to the selected specialization (Elective Specialization Course)742
Elective CoursesElective Course belonging to the selected specialization (Elective Specialization Course)742

Class Information
Academic Year2023 – 2024
Class PeriodWinter
Faculty Instructors
Class ID
Course Type 2021
Specific Foundation
Course Type 2011-2015
Knowledge Deepening / Consolidation
Mode of Delivery
  • Face to face
The course is also offered to exchange programme students.
Language of Instruction
  • Greek (Instruction, Examination)
  • English (Instruction, Examination)
Required Courses
  • 23Υ Wood Structure and Properties
  • 26Ε Pollution of the Natural Environment
  • 46Υ Chemistry & Wood Chemical Products
  • 53Υ Forest Protection Ι (forest pathology)
  • 55Υ Wood technology
  • 63Υ Forest Protection ΙΙ (Forest Entomology)
Learning Outcomes
Purpose of the course is to provide knowledge about the biological durability and deterioration of wood and its products by various biotic and abiotic factors, the relationships between wood and fluids (in drying, steaming, impregnation and improvement treatments) and to analyze the improvement and protection techniques that can be applied, such as thermal, hydrothermal, chemical, mechanical modification and protective impregnation. The protective and improving substances, means, equipment, technical conditions, safety rules, etc. are examined in detail. The knowledge that the students will acquire will be particularly useful for the rational use and utilization of wood, the protection and improvement of its properties, with the aim of to better cover the needs of man for the use of wood in various applications, but also to increase the use of this renewable, non-toxic and ecological material and its life and service life, reducing the logging pressure that the forests receive.
General Competences
  • Apply knowledge in practice
  • Work autonomously
  • Work in teams
  • Work in an international context
  • Work in an interdisciplinary team
  • Respect natural environment
  • Advance free, creative and causative thinking
Course Content (Syllabus)
1. Causes of deterioration of wood in service 2. Effect of factors on the maintenance and improvement of conifers and broadleaves (chemical composition, permeability, hygroscopicity, etc.) 3. Impregnating substances (retrospective, used, future trend) 4. Preparation of wood prior to impregnation 5. Methods of applying protective substances to wood - criteria for choosing a protection method 6. Organization and operation of impregnation facilities 7. Effectiveness and methods of its assessment 8. Safety imeasures and protection of health and the environment when applying protective substances to wood 9. Consequences of impregnation on the properties and uses of wood 10. Fire protection of wood (substances, evaluation of effectiveness, etc.) 11. Improving the hydrophobicity of wood - hydrophobic substances - measuring the effectiveness of hydrophobic manipulations 12. Methods of improving dimensional stability and other physical properties of wood – chemical modification and compression of wood – use of high temperatures 13. Conservation of archaeological wood
wood, durability, conservation, protection, imroovment
Educational Material Types
  • Notes
  • Slide presentations
Use of Information and Communication Technologies
Use of ICT
  • Use of ICT in Course Teaching
  • Use of ICT in Laboratory Teaching
  • Use of ICT in Communication with Students
Course Organization
Laboratory Work60.2
Reading Assigment260.9
Student Assessment
The final grade is determined by the final examimation and/or a written work which is assigned after consultation with the teacher. More details in the course webpage (e-learning)
Student Assessment methods
  • Written Exam with Short Answer Questions (Summative)
  • Written Assignment (Summative)
  • Oral Exams (Formative)
  • Performance / Staging (Summative)
Course Bibliography (Eudoxus)
● Βουλγαρίδης Η., 2006. Συντήρηση και Βελτίωση Ξύλου. Πανεπιστημιακές Παραδόσεις, ΑΠΘ. ● Hill C., 2006. Wood Modification, Chemical, Thermal and other processes. John Wiley & Sons Ltd, The Átreium, Southern Gate, Chichester. ● Hillis W.E., 1984. High temperature and chemical effects on wood stability. Part 1. General considerations. Wood Sci. Technol. 18:281-293 (1984). ● Johansson D., 2008. Heat Treatment of Solid Wood Effects on Absorption, Strength and Colour. Doctoral Thesis, Luleå University of Technology, 2008:53|p.142. ● Johansson D., 2005. Strenght and Colour Response of Solid Wood to Heat Treatment. Licentiate thesis. Luleå University of Technology. 2005:93. ● Kamperidou V., Barboutis I. and V. Vasileiou, 2014. Influence of thermal treatment on mechanical strength of Scots Pine (Pinus sylvestr is L.) wood. Wood Research 59 (2): 2014 373-378. ● Kamperidou V. and I. Barboutis, 2012. Effect of thermal treatment on colour and hygroscopic properties of poplar wood. International Conference of Ambienta 2012, Zagreb. ● Kartal S., Hwang W.J. and Y. Imamura, 2007. Water absorption of boron-treated and heat-modified wood. J Wood Sci (2007) 53:454–457. ● Kocaefe D., Poncsak S. and Y. Boluk, 2008. Effect of thermal treatment on the chemical composition and mechanical properties of Birch and Aspen. BioResources 3(2), 517-537. ● Kocaefe D., Poncsak S., Tang J. and M. Bouazara, 2010. Effect of heat treatment on the mechanical properties of North American jack pine: thermogravimetric study. J MaterSci (2010) 45:681–687.
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