NBN EN 680 : 2006
Current
The latest, up-to-date edition.
DETERMINATION OF THE DRYING SHRINKAGE OF AUTOCLAVED AERATED CONCRETE
01-12-2013
Cooperating organizations
National foreword
Foreword
1. Scope
2. Normative references
3. Principle
4. Apparatus
5. Test specimens
5.1 Sample
5.2 Shape and size of test specimens
5.3 Number of test specimens
5.4 Preparation of test specimens
5.5 Measurement of test specimens and determination
of their volume
5.6 Conditioning of test specimens
6. Testing procedure
6.1 Exposure to air at (20 +/- 2) deg C and >/= 45%
relative humidity and measurement of length changes
and variations of mass
6.2 Drying at test specimens at (105 +/- 5) deg C
7. Test results
7.1 Calculation of relative length change
7.2 Calculation of moisture content
7.3 Determination of the conventional value of drying
shrinkage
7.4 Calculation of dry density
8. Test report
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
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