By Nadine Guillon. driveway. Published at Tuesday, January 29th, 2019 - 04:45:09 AM.
You need a flat bed for your pavers to lay on, to do this you can use 18mm galvanised steel electrical conduit, they are not expensive but are better than using timber because the piece of timber or aluminum used to screed the sand will slide along them much easier.
Make sure the line is tight as you don’t want any sag in your line, this will give a false reading with your levels which could result in your finished driveway holding water.If your driveway is falling towards the house, then simply reverse the fall and levels from the pavement towards an existing rain water gully. If this isn’t possible, you will have to install drainage channels along the front of the property. Water should then be directed into a soak-a-way within your garden area.
The other way is to have 2/3 compacted sand and a third loose sand which you screed to the desired height, this is easier to screed but can result in soft spots. Establish the finished height of your block paving use a block as a guide and push it down into the sand until it is 5mm higher than the finished height to allow for the final compacting once all the block paving is laid.
By laying five to eight inches of gravel beneath the asphalt you are ensuring a greater life expectancy for your asphalt driveway. Also by having your asphalt paving company install your asphalt finish at least one foot before the asphalt covers the gravel, you are allowing your asphalt driveway to not crack when visitors drive to the edge of the finished surface.
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