The Eijkelkamp penetrologger CBR measures by a static penetration test directly CBR values using the standard CBR cone. The standard California bearing ratio (CBR) is a penetration test for evaluation of the mechanical strength of road subgrades and basecourses. The CBR is the basis for determining the thickness of soil and aggregate layers used in the design of roads and airfields.
A soil’s CBR value is an index of its resistance to shearing under a standard load compared to the shearing resistance of a standard material (crushed limestone) subjected to the same load. The test is performed by measuring the pressure required to penetrate a soil sample with a cone of standard area. The measured pressure is then divided by the pressure required to achieve an equal penetration on a standard crushed rock material.
The complete set with the penetrologger CBR includes a CBR cone, handles, sounding rods, depth reference plate, battery holder, batteries, cable and software.
The penetrologger CBR (art. no. 06.15.41) is registered under NSN 6635-12-384-3267.
Soil moisture measurement is possible with the optional soil moisture sensor with art. no.: 06.15.50.
Penetroviewer CBR V7.05 is available now. Software for processing and displaying data and for configuration of the penetrologger. Suitable for Windows ME, 2000, XP, Vista, Windows 7 and 8.
Product code: 06.15.SA
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