Published at Tuesday, February 05th, 2019 - 22:30:31 PM. driveway. By Nannette Courtois.
As tough as it is, asphalt can be damaged by sun exposure, excessive rain, ice, and temperature changes. Years of gasoline and oil drippings from cars can also cause surface deterioration. Not only will deteriorating asphalt fade from a crisp black to an ugly gray, but it can also become rough and crack open-and water accumulating in pavement cracks or holes can lead to further damage.
There are 2 methods you can employ as the bed for block paving, one, you have fully compacted sand making the sub base and the laying coarse much firmer, achieving a much flatter surface. To achieve this you need your sand approx 10 – 15mm higher than the finished screeding height, this surplus sand is screeded off to the correct height and then you lay your block paving.
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