[Morphologic studies of asbestos-cement surfaces].
A scanning electron microscopic procedure was used for the investigation of asbestos-cement surfaces. The samples of uncoated asbestos-cement sheets were up to 50 years old, coated asbestos-cement materials were 16 years old in maximum. Our results demonstrate that suitable coating systems effectively protect the asbestos-cement surface. On the other hand uncoated asbestos-cement shows a release of asbestos fibres locked up in cement. Therefore uncoated asbestos-cement sheets are emission sources of asbestos fibres. Wether the weathered material coursed a increase of asbestos fibre concentration in ambient air will be a subject of further investigations.
Krause
J
J
Sobottka
A
A
D001194:Asbestos; D002484:Cementation; D003252:Construction Materials; D005859:Germany, East; D006801:Humans; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
D001194:Asbestos
Morphologische Untersuchungen an Asbestzement-Oberflächen.