(created in 2013)
RILEM NEWSLETTER April 2013:
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RILEM TC 223-MSC:
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Methods of measuring moisture in building materials and structures
Technical Committee MMB
General InformationChair: Prof. Lars-Olof NILSSON
Secretary: Mr. Kurt KIELSGAARD HANSEN
Activity starting in: 2012
Properties and performance of building materials and structures are to a large extent influenced by the moisture conditions in the materials. Obvious examples are heat conductivity, shrinkage and creep, transport properties, most types of deterioration, discolouration etc. For research and applications the moisture conditions must be quantified, by measurements in the laboratory or under field conditions. The methods being used today are very different in different countries, very different for different materials and very different for different applications. Also researchers within the same topic use different methods. No consensus whatsoever does exist.
Terms of reference
The TC is supposed to run for 4 to 5 years. Members will be recruited from academia and industry, based on their experience with methods for measuring moisture conditions. The work will include literature research and exchange of good practices information to publish a state-of-the-art report. A number of round-robin tests will be the base for recommendations for measuring methods in various scientific and industrial applications.
Detailed working programme
The committee work is planned to follow this time-line:
The topic of methods for measuring moisture in construction materials in general fits into the scope of RILEM as an organisation dealing with a range of construction materials and structural performance. The idea for this committee was initiated by the first European conference on moisture measurements, Aquametry 2010, which dealt with moisture measurements in a wide area of applications, from space to construction. The methods used for moisture measurements in materials are more or less based on the same principles but the degree of development is very different in different disciplines. Here we could learn a lot from other scientific and industrial fields.
Expected achievements from the committee are
Group of users
Academics, testing laboratories, industrialists, practitioners
Specific use of the results
A common application in many countries is measurement of moisture in concrete floor slabs before applying a moisture-sensitive and impermeable flooring material. Today this is done in many different ways in different countries, also within each continent. Better and more accurate methods for measuring moisture would significantly limit the risk of damages due to moisture and the waist of construction time for further drying.