In the EN 206, for each environmental exposure class recommendations are given in terms of water-cement ratio (w/c), air content, cement factor, and strength class. The aspects examined in the present paper are a) difficulties in the practical application of the norm, b) contradictions between w/c and compressive strength and c) incongruities between the environmental aggression levels and the corresponding durability requirements.

  • INTRODUCTION

  • DEFINITION OF THE EXPOSURE CLASSES

  • CONCLUSIONS

  • REFERENCES

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