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Wood and building moisture meter
NDI 20
Group
Density
ca. kg/m³
Concrete types
1 1800 Low density screed
2 2000 Regular density screed
3 2200 Concrete*
4 2400 Concrete*
*Note: Since the production of concrete varies depen-
ding on the manufacturer, the corresponding date (e.g.
specific weight etc.) need to be obtained from the ma-
nufacturer. Based on this information the correct group
can be determined.
4.8.2 Concrete table
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