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The basic site test is performed by measuring the pressure required to penetrate soil with a plunger over a standard area. The measured pressure is then divided by the pressure required to achieve an equal penetration on a standard crushed rock material. The harder the surface, the higher the CBR percentage.
AMTEST UK Ltd delivers top-tier services to civil engineering and infrastructure clients across the UK, backed by expert in-house concrete consultants.
The basic site test is performed by measuring the pressure required to penetrate soil with a plunger over a standard area. The measured pressure is then divided by the pressure required to achieve an equal penetration on a standard crushed rock material. The harder the surface, the higher the CBR percentage.