Study-Unit Description

Study-Unit Description


CODE CNM3421

 
TITLE Degradation of Building Materials 1

 
UM LEVEL 03 - Years 2, 3, 4 in Modular Undergraduate Course

 
MQF LEVEL 6

 
ECTS CREDITS 4

 
DEPARTMENT Construction and Property Management

 
DESCRIPTION This study-unit addresses the causes and manifestation of degradation of the main construction materials, including reinforced concrete and stone. Mechanisms of deterioration of stone, and the mapping of the different mechanisms will be studied. The study-unit will address the ability of the concrete to protect embedded steel, and the mechanisms by which this protective action can be undermined. Ways of mitigating the deterioration phenomena are also briefly discussed. The study-unit will be illustrated by case-studies and field-work.

Study-unit Aims:

This study-unit aims to provide a basic understanding of:

- The factors affecting the durability of concrete and reinforced concrete structures;
- The deterioration (including causes), consolidation, protection, and other treatments of stone used in buildings.

Learning Outcomes:

1. Knowledge & Understanding:
By the end of the study-unit the student will be able to:

- Explain the processes of corrosion of reinforcement in concrete, and the role played by carbonation, water flow, pore structure, in the durability of concrete structures;
- Identify the methods by which the durability of concrete can be enhanced;
- Identify the factors that cause the deterioration of stone in buildings, including their interactions;
- Explain the measures that can be taken to tackle deterioration of stone.

2. Skills:
By the end of the study-unit the student will be able to:

- Identify the causes of the degradation of concrete structures;
- Prepare an outline method statement for the repair of concrete structures;
- Identify the causes of deterioration of stone;
- Prepare a methodology on how to clean, repair and protect stone in buildings.

Main Text/s:

- Ashurst J., and Dimes F.G. Conservation of building and decorative stone (2 vols). Butterworths, 1990
- Cassar J. “Deterioration of the Globigerina Limestone of the Maltese Islands.” In: Natural stone, Weathering - Phenomena, Conservation Strategies and Case Studies. Geological Society, London, Special Publications, 205, pp. 33-49. 2002
- Henry A. (ed) Stone Conservation Principles and Practice. Donhead, 2006
- Mehta, P.K., Monteiro, P.J.M., Concrete: Microstructure, Properties and Materials, McGraw Hill, 3rd edition, 2006
- Richardson, M.J., Fundamentals of Durable Reinforced Concrete, Modern Concrete Technology Series, Taylor & Francis, 2004

Supplementary readings:

- Building Conservation (on line) http://www.buildingconservation.com/
- Feilden B. Conservation of Historic Buildings Third edition. Architectural Press, 2003
- Sarja, A., Vesikari, E., Durability Design of Concrete Structures, Volume 14 of RILEM Report, Taylor & Francis, 1996
- Page, C.L., Woodhead, Maney, Durability of Concrete and Cement Composites, Institute of Materials, Minerals & Mining, 2007
- MSA EN1992 Design of Concrete Structures, Eurocode 2 - European Standard
- MSA EN 206-1 Concrete - Part 1: Specification, performance, production and conformity - European Standard
- Torfs, K., Van Grieken, R. & Cassar, J. Zezza, F. “Environmental effects on deterioration of monuments: case study of the Church of Sta. Marija Ta’ Cwerra, Malta.” (ed) In: Origin, Mechanisms and Effects of Salt on Degradation of Monuments in Marine and Continental Environments. Zezza, F. (ed) Proceedings of the European Commission Research Workshop on Protection and Conservation of the European Cultural Heritage, Bari, Italy. Research Report No. 4, 441-451. 1996

 
RULES/CONDITIONS Before TAKING THIS UNIT YOU ARE ADVISED TO TAKE CNM2421

 
STUDY-UNIT TYPE Lecture and Independent Study

 
METHOD OF ASSESSMENT
Assessment Component/s Assessment Due Sept. Asst Session Weighting
Assignment SEM1 Yes 50%
Examination (2 Hours) SEM1 Yes 50%

 
LECTURER/S Jonathan Borg
Spiridione Buhagiar
Alex Torpiano

 

 
The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the description above applies to study-units available during the academic year 2023/4. It may be subject to change in subsequent years.

https://www.um.edu.mt/course/studyunit