CEN/TC 104/SC 8/WG 7 - General principles for the use of products and systems

This Part of EN 1504 specifies requirements for the identification and the performance (including durability aspects) of products and systems for active and barrier coatings for protection of existing uncoated steel reinforcement and embedded steel in concrete structures under repair.
This standard does not cover products for corrosion protection of pre-stressing steels and stainless steels.

The phenolphthalein test method is intended to measure the depth of the carbonated layer near the surface of hardened concrete. It is not suitable for concrete made with calcium aluminate cement. It may be used on site or in the laboratory, on test specimens or on cores or fragments removed from hardened concrete structures.

This Prestandard sets out basic considerations for specification of protection and repair of plain and reinforced concrete structures with products and systems, which are specified in the EN 1504 series of standards or any other relevant EN or European Technical Approval. This prestandard includes: a) the need for inspection, testing and assessment before, during and after repair; b) protection from, and repair of defects caused by, the influence of the environments defined in EN 206 or other chemical substances;