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Field investigations of wet and dry deposition of acidifying pollutants and their effects on building materials

Provide knowledge on the corrosion influence of wet and dry
deposited air pollutants for chosen important building
materials in different positions on buildings. Stockholm
sites and nidaros cathedral (norway) are prime study objects

Exterior building materials are affected by static and dynamic loadings and by climatic and environmental degradation factors. The degradation which occurs mostly involves complicated chemical and/or physical processes governed by a great number of weathering factors. In corrosion processes, various air pollutants play an important role. Studies of dose and the response of materials are normally performed at laboratories or through exposure of material samples at exposure stations. Very few investigations of wet and dry deposition of pollutants on exterior building materials with simultaneous studies of materials degradation have been performed. The project aims at providing knowledge on the corrosion influence of wet and dry deposited air pollutants for chosen important building materials in different positions on buildings. 3-5 buildings in the city of Stockholm and the Nidaros cathedral in NORWAY are the prime study objects. The project part in Stockholm will be designed in a way that permits the study of the influence of pollution from vehicular traffic. The project includes certain adaptation and development of field techniques to measure wet and dry deposited pollutants as well as characterizing the micro environment. Samples of reference materials are exposed at the buildings and at reference exposure stations and possibilities for simultaneous exposure of industrial building materials are offered.
Acronym: 
WETDRY-DEP
Project ID: 
640
Start date: 
01-06-1991
Project Duration: 
66months
Project costs: 
1 280 000.00€
Technological Area: 
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.