Hygric properties of porous building materials (VII): Full-range benchmark characterizations of three materials

2021 ◽  
Vol 195 ◽  
pp. 107727
Author(s):  
Chi Feng ◽  
Hans Janssen
Keyword(s):  
Building Materials ◽  
Full Range ◽  
Porous Building Materials ◽  
Hygric Properties

scholarly journals Hygric properties of porous building materials (VI): A round robin campaign

2020 ◽  
Vol 185 ◽  
pp. 107242 ◽  
Author(s):  
Chi Feng ◽  
Ana Sofia Guimarães ◽  
Nuno Ramos ◽  
Lixin Sun ◽  
Dariusz Gawin ◽  
...  
Keyword(s):  
Building Materials ◽  
Round Robin ◽  
Porous Building Materials ◽  
Hygric Properties

scholarly journals A round robin campaign on the hygric properties of porous building materials

2019 ◽  
Vol 282 ◽  
pp. 02011 ◽  
Author(s):  
Chi Feng ◽  
Ana Sofia Guimarães ◽  
Nuno Ramos ◽  
Lixin Sun ◽  
Dariusz Gawin ◽  
...  
Keyword(s):  
Building Materials ◽  
Round Robin ◽  
Capillary Absorption ◽  
Reliable Determination ◽  
Porous Building Materials ◽  
Vacuum Saturation ◽  
Experimental Protocols ◽  
Hygric Properties ◽  
Data Processing Methods

The reliable determination of the hygric properties of porous building materials is important. In earlier round robin campaigns large discrepancies of measured hygric properties were found among different labs. Later studies indicated that differences in lab conditions and more importantly, personnel’s operation procedures and data processing methods, might have the greatest impact. To gain further insight, a new round robin campaign has been launched by KU Leuven (Belgium), to which another eight institutes contributed. A relatively stable and homogeneous ceramic brick is tested, and 3 standard tests are performed: the vacuum saturation test, the capillary absorption test and the cup test. During the campaign, two rounds of measurements are performed. In the 1st round, tests are performed according to participants’ respective experimental protocols. Next, a strict and detailed common protocol is prescribed. This paper reports on the results obtained in the 1st round of measurements. Results show that not much progress has been made since the EC HAMSTAD project: the vacuum saturation test leads to the most consistent results, while the cup test produces the largest discrepancies, most probably originating from sample sealing and humidity control.

Interlaboratory Comparison of Hygric Properties of Porous Building Materials

2004 ◽  
Vol 27 (4) ◽  
pp. 307-325 ◽  
Author(s):  
Staf Roels ◽  
Jan Carmeliet ◽  
Hugo Hens ◽  
Olaf Adan ◽  
Harold Brocken ◽  
...  
Keyword(s):  
Building Materials ◽  
Interlaboratory Comparison ◽  
Porous Building Materials ◽  
Hygric Properties
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