By Nadine Guillon. driveway. Published at Tuesday, January 29th, 2019 - 04:45:09 AM.
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.
Two Set up your level line. You will need to knock 2 timber or steel pins into the ground, one at the house end of the driveway and the other at the pavement side. Next, attach a tight builder’s nylon line at what will be the finished height of your block paving, this line should be approx 10mm higher than the pavement and 150mm lower than the damp proof course to allow for final compaction of the block paving.
Meanwhile, brittle, deteriorating asphalt can form potholes, which can prove hazardous to drivers. Properly maintaining your driveway or parking lot area by sealcoating the asphalt will protect both your investment and the individuals who use the space.
If you want to seal a driveway or parking lot that is several years old and has already begun to deteriorate, the paving contractor must first repair the damaged asphalt. This may involve filling any holes or cracks in the pavement, as well as smoothing out rough areas. It’s also a good idea to clean up any oil stains before applying sealcoating, as once they’re sealed in, those stains are permanent. In general, you should apply a new coat of driveway sealer every two to three years. Resealing and minor repairs will almost always be less expensive than having to completely replace the pavement.
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