Current findings with respect to the XF2 freeze/thaw test method

Freeze/thaw resistance at moderate water saturation levels

Generally accepted, internationally recognized methods (CIF and CDF) exist for testing the freeze/thaw resistance of concrete at high water saturation rates irrespective of the simultaneous action of de-icing salts. These methods assume that concrete is sufficiently resistant to damage caused by freezing water if the degree of water saturation remains below a critical threshold even under permanent exposure to water. These tests are also suitable for demonstrating the influence of carbonation on freeze/thaw resistance. In the past, the descriptive specifications in EN 206-1 and DIN 1045-2 were...

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Issue 2018-02 Freeze-thaw resistance of concrete products

New research findings

The freeze-thaw resistance of concrete paving blocks must be verified by the slab test (DIN EN 1338). Sometimes clients in Germany demand the CDF method (DIN CEN/TS 12390-9). Independent of the test...

Issue 2017-02 New findings and forecast models

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The freeze-thaw damage pattern of concrete is primarily linked to the water contained in the pore system, which is also referred to as the saturation level. If a certain critical saturation level is...

Issue 2016-02 Transferability of laboratory test results

Determining freeze-thaw resistance of precast products for road pavements under real-life conditions

Since February 2005, the freeze-thaw resistance of concrete pavers had to be determined in the modified slab test in accordance with DIN EN 1338. Some clients favor the CDF method even though there...

Issue 2013-02 Day 2: Wednesday, 6th February 2013

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Title Titel Freeze/thaw resistance at moderate water saturation levels – current findings with respect to the XF2 freeze/thaw test method Frostwiderstand bei mäßiger Wassersättigung –...

Issue 2015-02 Introduction of resistance classes in the future concrete standard

Concepts to ensure the durability of concrete structures

Currently the durability aspects of concrete structures are regulated in the standards in a descriptive way. Depending on the exposure class, specified by the designer, in the concrete stan-dard...