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Surface Measuring Instruments

Ra Meter- Roughness Average Meter

 
Put Simply, The Ra Meter takes the guesswork out of Polished Concrete!!

An Ra meter provides a scientific measurement of a concrete floors (surface) texture, determining its smoothness to the micro-inch or micrometre.
By using these measurements, you’ll have an accurate understanding of a concrete floors roughness at each stage of the polishing process and by referencing the ST-115 Surface Textures Chart, know will how to proceed to obtain the agreed result. 
This allows quantifiable, repeatable results in accordance with the American Concrete Refinement Standard ST-115.


Main Benefits of an Ra Meter:
  • Simple to use.
  • Eliminates the need to go back steps to remove missed scratching.
  • Confirms the correct surface has been achieved for each stage of polishing.
  • Allows the polishing process to be completed more efficiently with conclusive standards achieved.
  • Used in conjunction with Absolute Floor Solutions System & American ST-115 Standard.
Ra-189
Ra3-730
Ra2-548
The Ra Meter measures both Metric and Imperial.
The probe on the underside physically measures the texture of the surface to 0.00001mm. 1 micron= 0.001mm

Slip Meter (Tribometer)

Wet Floor-132-494-22 Slip2

A Slip Meter provides a simple method of testing a floors static Co-Efficiency for compliance against slip hazards. A slip meter whilst can be used in wet or dry conditions, it is often used to confirm a finished floor surface is slip resistant when it's wet.

NZ's slip compliance value is defined as having a surface that gets a Co-efficient of Friction (CoF) reading greater than 0.4 or a Slip resistant value (SRV) of 39 or greater.

Seals and Stain Guards are available to protect a finished concrete surface. Their effect on the surface for slippage, gloss, UV stability, durability and wearability need to be considered

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