2019
DOI: 10.1016/j.buildenv.2019.106344
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Hygric properties of porous building materials (V): Comparison of different methods to determine moisture diffusivity

Abstract: Moisture diffusivity is an important material property for performing the hygrothermal analysis of buildings and the built environment. Its experimental determination is still a challenge, albeit various destructive and non-destructive experimental methods are available. This paper compares the X-ray method, the ruler method, the multi-step method and the Kießl-Künzel method to non-destructively determine the moisture diffusivity of calcium silicate, ceramic brick and lime mortar. Results show that the ruler m… Show more

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Cited by 18 publications
(12 citation statements)
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“…Both constraints were met in our case. In addition, the reliability of our X-ray test and data processing had been previously proved by another study, wherein different diffusivity determination methods were used [17].…”
Section: Moisture Transport Curvesmentioning
confidence: 69%
See 1 more Smart Citation
“…Both constraints were met in our case. In addition, the reliability of our X-ray test and data processing had been previously proved by another study, wherein different diffusivity determination methods were used [17].…”
Section: Moisture Transport Curvesmentioning
confidence: 69%
“…Their detailed definitions are available in ref. [13][14][15][16][17][18][19][20], and we do not repeat these here.…”
Section: Materials Properties In a Nutshellmentioning
confidence: 99%
“…Fig. 1: Pore volume distribution (versus pore radius) of target materials H1 and H6 and of wick material CB [6].…”
Section: Materials Informationmentioning
confidence: 99%
“…The moisture diffusivity is typically determined through analysis of moisture content profiles monitored during moisture transfer experiments. Visualisation of the profiles with X-ray radiographic measurements during capillary absorption testing is commonly used for this, to deliver the moisture diffusivity in the high range [9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%