BS EN 1367-6:2008 Tests for thermal and weathering properties of aggregates. Determination of resistance to freezing and thawing in the presence of salt (NaCl)
BS EN 1367-6 specifies a method of assessing the frost resistance of an aggregate when it is subjected to the cyclic action of freezing and thawing in the presence of 1 % solution of NaCl in de-ionized or distilled water.
The results of this test provide a means for assessing an aggregate’s resistance to this form of weathering in areas where frequent freeze-thaw cycling occurs with seawater sprays or abundant deicers conditions, and where result values of BS EN 1367-1 test method do not describe correctly aggregate performance in extreme conditions.
BS EN 1367-6 gives the option to control the thawing sequence either by immersion in water or by using air circulation in the low temperature cabinet to obtain the required reference temperature.
This test method applies to coarse aggregates or to coarse aggregates' fractions of all-in materials. This method is not appropriate for lightweight aggregates covered by BS EN 13055 or aggregates which can not be submitted to 110 °C oven drying.
Contents of BS EN 1367-6:
- Foreword
- Scope
- Normative references
- Terms and definitions
- Principle
- Apparatus
- Sampling
- Test specimens
- Procedure
- Calculation and expression of results
- Test report
- Precision
- Bibliography