SR EN 1504-9:2009

This Part of EN 1504 sets out basic considerations for specification of protection and repair of reinforced and unreinforced concrete structures (including, for example, pavements, runways, floor slabs and pre-stressed structures) using products and systems specified in other Parts of the EN 1504 series or any other relevant European Standard or European Technical Approval. This European Standard covers atmospherically exposed, buried and submerged structures. This European Standard includes: a) the need for inspection, testing and assessment before and after repair; b) protection from causes of defects and their repair in concrete structures. Causes of such defects may include: 1) mechanical actions, e.g. impact, overloading, movement caused by settlement, blast, vibration and seismic actions; 2) chemical and biological actions from environments, e.g. sulphate attack, alkali aggregate reaction; 3) physical actions, e.g. freeze-thaw, thermal cracking, moisture movement, salt crystallisation and erosion; 4) fire damage; 5) reinforcement corrosion resulting from: i) physical los