Windsor Probe Test

Principle

The Windsor probe is generally considered to be the best means of testing penetration. It is used to determine the penetration resistance of hardened concrete using steel probes.

The test consists of firing a standard probe into the concrete with a standard cartridge. The extent of the of the penetration is measured and is related to the concrete strength. The strength results are based on predetermined correlation between the type of aggregates used in the concrete and the penetration depth.