Assessment of masonry arch railway bridges using non-destructive in-situ testing methods

2009 ◽  
Vol 31 (10) ◽  
pp. 2287-2298 ◽  
Author(s):  
Zoltán Orbán ◽  
Marc Gutermann
Keyword(s):  
In Situ Testing ◽  
Testing Methods ◽  
Masonry Arch ◽  
Railway Bridges ◽  
Non Destructive

Influence of Water Content on Fundamental Frequency of Mortar Sample

2015 ◽  
Vol 1124 ◽  
pp. 273-279 ◽  
Author(s):  
Ladislav Carbol ◽  
Jan Martinek ◽  
Ivo Kusák
Keyword(s):  
Water Content ◽  
Fundamental Frequency ◽  
Non Destructive Testing ◽  
In Situ Testing ◽  
Mortar Sample ◽  
Destructive Testing ◽  
Impact Echo ◽  
Influence Of Water ◽  
Non Destructive

Ultrasonic non-destructive testing methods such as Impact-echo are often conducted under different conditions. Such results might be distorted by ambient temperature or by water content of the tested sample. Tested mortar sample displayed shift of the fundamental frequency by 3.7 %. This article confirms necessity of standardized conditions during ultrasonic testing for both laboratory and in-situ testing.

Non-destructive mechanical and physical in-situ testing of rendered walls under natural exposure

2020 ◽  
Vol 230 ◽  
pp. 116838 ◽  
Author(s):  
J. Galvão ◽  
R. Duarte ◽  
I. Flores-Colen ◽  
J. de Brito ◽  
A. Hawreen
Keyword(s):  
In Situ Testing ◽  
Natural Exposure ◽  
Non Destructive

scholarly journals Methodology for the in situ testing of the moisture content of brick walls: an example of application

2020 ◽  
Vol 20 (4) ◽  
Author(s):  
Anna Hoła
Keyword(s):  
Moisture Content ◽  
Fourteenth Century ◽  
In Situ Testing ◽  
Negative Effects ◽  
Non Destructive ◽  
Historical Periods ◽  
Destructive Methods ◽  
Author Knowledge

Abstract The article presents original methodology of testing the moisture content of brick walls in buildings. It was developed on the basis of own experience acquired during testing the moisture content in many excessively wet buildings erected in various historical periods. The tests were conducted using different methods, including non-destructive methods. To emphasize the importance of the problem, an overview of the methodology was preceded by a brief presentation of the causes and negative effects of excessive moisture and salinity in brick walls. In addition, the article is illustrated with an example of the effects of moisture content tests carried out according to the developed methodology on a facility from the fourteenth century. According to the author, knowledge of the presented methodology, and its application, should contribute to both the improvement of the quality of conducted research and the credibility of the obtained results.

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