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Pro096

SYSTEM MODEL OF MOULD GROWTH ON BUILDING MATERIALS



Author(s): Li, Y.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
e-ISBN: 978-2-35158-149-0
Publication year: 2015
Pages: 231-235
Total Pages: 5
Language: English


Abstract: During the recent decades indoor mould is one of the major concerns for the indoor environment and the sustainability of the material use since it is closely connected to the health issues for the building occupants. This study presents a system dynamic model of mould growth on building materials by taking into account of the physical properties of the building materials and the physiological properties of the mould. This model can be used to show the trend of the mould growth in the buildings. This is an inter-discipline study of the material science and the biological science. Mould, building materials and the surrounding air are considered as a system. All the influencing factors within the systems and their interactive impacts are analyzed by the system analysis. Based on the analysis a system model is built. The model consists of the moisture properties of the materials: moisture exchanged between the building material and the surrounding environment via desorption and adsorption processes, which are influenced by the hysteresis properties of the material and the temperature. This part is connected to the activities of the mould, as mould consumes the moisture. The physiological properties of mould are also influenced by the moisture states of the material and the surrounding environment, such as temperature, oxygen etc. By providing the climate data, the model can show the trend of the mould growth over the time.


Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00