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Author(s):	Garbali ska, Halina; Bochenek, Magdalena
Title:	Experimentelle Ermittlung der Desorptionsisothermen von Porenbeton unterschiedlicher Dichte mit der Standardmethode SSS und mit der DVS-Technik
Abstract:	In dem Artikel wird die Bewertung von zwei Untersuchungsmethoden zur Ermittlung der Desorptionsisothermen - der Standardmethode SSS (Saturated Salt Solution) sowie der DVS-Technik (Dynamic Vapor Sorption) - vorgestellt. Das Problem der Kompatibilität beider Methoden wird am Beispiel von Porenbeton der folgenden vier Rohdichteklassen getestet: 400, 500, 600, 700 kg/m3. Die erzielten Ergebnisse aus beiden Methoden zeichnen sich durch hohe Konformität bei allen getesteten Porenbetonsorten bei relativen Luftfeuchtigkeiten von 0 bis 75 % aus. Bei hohen Feuchtigkeitswerten zwischen 75-85 % und 98 % wurde ein deutlicher Unterschied im Verlauf der Desorptionsisothermen festgestellt, die mit den beiden Methoden ermittelt wurden, insbesondere bei den höheren Dichteklassen. Experimental determination of desorption isotherms for aerated concrete of different density, by the standard SSS method and by the DVS technique. The article presents an assessment of two research techniques for setting moisture desorption isotherms: the traditional SSS measurement method (Saturated Salt Solution) and the DVS technique (Dynamic Vapor Sorption). The problem of compatibility of the two methods was tested on aerated concrete of four density classes: 400, 500, 600 and 700 kg/m3. The results obtained by the application of the two methods show good compatibility in case of all concretes tested, in humidity range from 0 % to 75 %. In the range of high humidity, from 75 %-85 % up to 98 %, there appeared a considerable diversification of desorption isotherm courses set by the two different methods, particularly being observed in case of higher density classes.
Source:	Bauphysik 39 (2017), No. 3
Page/s:	191-196
Language of Publication:	German

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