Signs a driveway has been poorly installed

Question

We had a new block paving driveway laid six months ago and parts of it are already moving and settling unevenly. What are the signs that it wasn't done correctly from the start?

Simon · Accepted Answer

That is a good sign that it hadnt been done correctly,  also if its Permable you should  see  5m stone inbetween if not dry kilned sand. Good fixed edges ie, edging kerbs or simular if against flowerbeds or loose ground, The Blocks should stay in line not wander off. Its everything you dont see that is most important like the substructure make up.

Carl · Answer

You have already answered what signs you see. Basically very poor sub base  and not enough of it. Not compacted enough causing the drive to start sinking. Moving is caused by the edging not being concreted in properly  sound like they just done a strip of concrete  along the edging. Never strong enough to hold the driveway together.  Sound like a very poor job after 6 months.

Michael · Answer

Hi Mo,
Warning signs as the drive is be installed is are the borders installed correctly edges of drive should be Haunches or have Kerbs installed.
Also the sub base is of utmost importance correct depth correct materials Type 1 Road stone should be used not crushed concrete and the correct amount of compaction with a vibrating Wacker plate.
I hope this if some help to you.

Regards,

Michael

Signs a driveway has been poorly installed

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