Paver Pete shows us how to finalize the base before installing the setting bed on an interlocking pavement installation. 

The base of our interlocking pavement has been installed.

Now, two verifications need to be made before the next steps.

•  Density

Verify compaction to ensure that 98% standard Proctor density has been reached.

• Imperfections

Look for imperfections in the surface greater than ± 3/8" over a length of 10'.

In order to do this, you can grab a 10-foot piece of pipe and roll it over the top of the base. Try to slide a 3/8" spike between the pipe and the base.

If you come across a section where the spike can be inserted underneath the pipe, mark the area with paint in order to identify areas that need to be addressed.

After the adjustments are made, a final pass with the compactor is required. Compaction on this project was done with a single drum roller.

It provides a wide footprint, high compressive strength and centrifugal force. This provides adequate compaction very quickly, and the width helps to greatly reduce further surface imperfections.

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