The Paper describes the problem of the failure to achieve the specified cover to the reinforcement in reinforced concrete structures. This is a widespread problem which in the UK alone is reliably estimated to cost £550 million each year. That is more than £1.5 million a day, and it is a world wide problem. Achieving the specified cover is important for the structural, durability and fire performance of structures. The Paper describes the problem, the development of British Standard 7973 (which solves the problem), and shows an example of the Standard in use. BS7973 has been incorporated by reference into British Standard 8110 ‘The Structural Use of Concrete’, and is applicable to other reinforced concrete standards.

  • INTRODUCTION

  • DEVELOPMENT OF THE BRITISH STANDARD

  • THE PROCESS CHAIN

  • THE PRODUCTS

  • ACHIEVING THE SPECIFIED COVER

  • CONCLUSIONS

  • REFERENCES

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