Concrete Testing

For the non destructive location of rebars and for the measurement of concrete cover and bar diameters, we use the eddy current principle with pulse induction as the measuring method. By using this method we can detect the rebar diameter accurately to the millimeter.

We can perform the following services:

  • Locating rebar
  • Concrete cover meter
  • Storing individual cover values and statistical evaluation
  • Determining the bar diameters
  • 2-dimensional display of rebar layout
  • 2-dimensional display and mapping of concrete cover values

Chemical Analysis

NDT Inspections offers a comprehensive range of cement testing encompassing both physical and chemical cement testing utilising BS, EN and ASTM methods. All testing is carried out by our experienced staff operating from our well equipped accredited laboratories.


  • Alkali silica reactivity (ASR) ASTM C289
  • Sulphate and chloride content
  • Acid soluble material


  • Analysis to BS EN 196
  • Full documented in-house methods
  • Alkali content


  • Cement content and A/C ratio
  • Water/Cement ratio
  • Chloride and Sulphate content

Mortar and render:

  • Mix proportions
  • Sand grading


  • Lead content


  • Soluble salts