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 are some discrepancies between laboratory test results and the real-life behavior of installed pavers. For instance, there were some isolated cases in which the facing layer of installed double-layer concrete pavers detached from the core after only a few winter seasons despite the fact that these products had previously passed the CDF tests at the laboratory (Fig. 1). Research project No. 17996 N...