In 1993 the Swedish National Road and Transport Research Institute (VTI) initiated a research project of testing and evaluating a 20/80 weight-% CMA/NaCl mixture. The field evaluation was conducted during the winters 1993/94 and 1994/95 on highway E4 near Nykoeping, County of Soedermanland, and included both friction measurements and corrosion tests. The laboratory testing, mainly done at the Swedish National Testing and Research Institute, included corrosion tests and freeze/thaw testing on cement concrete. The laboratory tests showed that the addition of CMA to NaCl does reduce the corrosion of steel and the scaling of concrete. The corrosion of steel is reduced also according to the results from the field tests, but not to the same extent as in the laboratory tests. Furthermore, the same deicing could be obtained with the CMA/NaCl mixture as with NaCl. (A)
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