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Assessing Ground Conditions Prior to Installing Resin Bound Gravel Surfacing

Assessing Ground Conditions Prior to Installing Resin Bound Gravel Surfacing (CBR Values)

In order to work out the required depth of MoT type 3 to install as a sub-base, you must first calculate the CBR value of the existing soil present at the proposed site. Use the below table to indicate the stiffness of the ground before using the table on the following page to determine the sub-base thickness required.

CBR Value Table

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