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Drive block paving

How do ground conditions change the depth of your dig ?

3 Answers from MyBuilder Driveway Pavers

Ok lets say for instance your ground is clay and holds a lot of water you would need to excavate lower and install crushed concrete prior to sub base this will hold up better as no limestone and also aid drainage

2017-07-03T12:50:02+01:00

Answered 3rd Jul 2017

As a rule of thumb most driveways only need 150 of Type 1 sub-base but when excavating you will see if the ground is soft, a good way of testing is the dig your heel into the ground or gentle push a steel bar in it will give you a indication of what we call the CBR value, if soft take out another 75mm
Regards Peter.

2017-07-08T09:00:01+01:00

Answered 8th Jul 2017

You should also lay a geotextile membrane before you lay the base. This creates a barrier between the sub soil and base and at the same time helps to spread the weight of the base.

2017-08-16T09:35:02+01:00

Answered 16th Aug 2017

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