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Einsatz eines mobilen NMR-Sensors als zerstörungsfreies Messsystem in der Bauwerkserhaltung

Author(s):


Medium: journal article
Language(s): German
Published in: Bautechnik, , n. 11, v. 88
Page(s): 741-748
DOI: 10.1002/bate.201101499
Abstract:

Application of a mobile NMR sensor as a non-destructive measurement system in the field of maintenance.

The potential to use the NMR-MOUSE® as non-destructive analytical tool in building maintenance is demonstrated on two examples. The first one covers moisture transport through fine grained concrete matrices, whereas in the second one the NMR-MOUSE is used to determine the layer thickness of selected coating systems for concrete protection.
In using this NMR technique, significant moisture profiles have been determined in fine grained concrete matrices with a maximum measuring depth of 5 mm and a depth-resolution of 250 µm. The NMR technique also allows observing the time depended progress of capillary water uptake and evaluating the effects of polymer modifications of the concrete matrix.
Furthermore, the layer thickness of one model coating system and two OS 11a-coating systems were determined on the basis of depth profiles. The results show, that layer thickness between 50 and 200 µm can be determined with a standard deviation of about 5 µm.

Keywords:
moisture content non-destructive testing methods capillary water uptake coating systems for concrete protection coating thickness
Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/bate.201101499.
  • About this
    data sheet
  • Reference-ID
    10067141
  • Published on:
    05/09/2012
  • Last updated on:
    13/08/2014
 
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