Increasing physical resistance

BS EN 1504 Principle 5 is concerned with increasing physical resistance of the concrete to physical or mechanical attack. Removal of the concrete surface by physical actions such as impact or abrasion may affect the performance of the structure. The causes need to be identified and physical protective measures may need to be taken to reduce their effects as well as applying the repair methods.

Specialist methods of reinstatement and special products are available from Weber to enhance the durability of buildings and structures.

Problems & Solutions

Issues you may face

1. Fire damage

Fire damage to reinforced concrete walls, columns and soffits.

2. Impact damage

Impact damage to floor slabs and pavement-quality concrete.

3. Impact damage

Impact damage to structural reinforced concrete elements.


Methods of protection based upon the BS EN 1504 Principle 5 is the use of the following:

  • 5.1 Overlays or coatings
  • 5.2 Impregnation

1. Overlay sprayed concrete

To restore section of damaged concrete without the use of formwork and for rapid reinstatement to walls and soffits. Use:

2. Recasting concrete

Recasting concrete to pavements and floor slabs and joint arris. Use:

3A. Hand-applied mortar

To structural elements using cement-based or epoxy-based mortar. Use webercem HB40.

3B. Structural wrap

Structural wrap to columns to prevent impact damage. Use webertec force aramid sheet.

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