Windsor probe concrete test has been around for years to measure the strength of the in-situ concrete. The test consists of propelling a 0.25-inch diameter steel or gold probe into a concrete surface using a drive unit. The probe kite or the testing system consists of the drive unit, electronic measuring device, probes, templates, measuring caps, gauge plates, and carrying case. The exposed length of the probe measures the penetration resistance of the concrete.

The USP of Windsor Probe Test 


The Windsor probe concrete test was developed in the mid-60s as a joint effort between the New York Port Authority and the Windsor Machine Company. The USP of this test is that it is a non-destructive test. It is a surface test that evaluates the strength of concrete by penetrating the probe into the concrete surface. 

Is the Windsor Probe Test officially recognized?

The test agrees with the ASTM guidelines of concrete testing. Many people have the misconception that this test is not recognized by the ASTM. But, both The American Society for Testing and Materials (ASTM) and the American Concrete Institute (ACI) recognize Windsor Probe testing as an acceptable method to estimate in-situ concrete strength. 

However, it is important to understand the test results of the probe test may vary as the factors like deleterious effects such as carbonation, the type, size, and distribution of coarse aggregate, and the location of embedded reinforcing steel often result in inaccurate values. 

When to use the Windsor Probe System for concrete testing?


The Windsor probe system for concrete testing by Concrete Insight is a rapid system for testing the compressive strength of in-situ concrete. The modern Windsor system is capable of measuring concrete with a maximum compressive strength of 17,000 PSI. This system provides accurate and quick results. The test is often used to measure the compressive strength of the existing structures.