Slip resistance for concrete surfaces.


Creating a slip resistant surface

Floor and paving materials must satisfy a variety of both physical and aesthetic requirements. Slip resistance under both dry and wet conditions is a crucial performance quality essential to the safety of pedestrians and vehicular traffic. For vehicular traffic the term skid resistance is used.

There is an ever increasing range of materials available for internal and external floor and paving surfaces including those listed below:

  • Polymer modified concrete
  • Epoxy Resin finishes and acrylic coatings
  • Terrazzo
  • Ceramic
  • Clay or concrete pavers
  • Asphalt
  • Laminate Wood

The most commonly accepted and specified method of measuring slip resistance is by use of the TRL Pendulum Tester incorporating a rubber slider.

  • On site testing in various locations for example shopping malls, airports, elevator lobbies and reception areas are the most common way of performing the tests.

Testing agencies should be able to perform a variety of slip resistance tests including.

  • Measurement of surface roughness (Rz) using a micro-roughness meter can also be incorporated.
  • Laboratory testing of proposed flooring materials including assessment of different finishes such as honed, etched or polished concrete.
  • Interpretation of results, the Pendulum Test Value (PTV) and calculation of the coefficient of friction (µ).
  • Advice on remedial measures to improve the slip resistance of floor and concrete surfaces.

Most decorative concrete products on the market have been tested and approved for use and meet miniumum requirements for slip resistance although it is advisable for any new application that test results be in hand and available for presentation.

Here are some resources for slip resistant ratings for various decorative concrete products and systems.

National floor safety institute – NFSI

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