If you have an asphalt driveway, then you probably know that the edges of the asphalt are the weakest areas along the structure. These edges are tapered down to help reduce damage concerns, but the asphalt will break away over time if you continuously drive over the sides. Cracks and weakened asphalt areas then spread out across the surface of the driveway. You can prevent damage issues along the driveway edge by placing edging. Bricks are a stylish and sturdy type of edging material. You want the bricks to be as secure as possible along the driveway edge, so follow the tips below when placing the bricks.
Create a Gravel Underlayment
When a new asphalt driveway is constructed, a thick layer of gravel is placed underneath it. Crushed angular gravel is often used and the material can absorb some of the stress that is placed along the asphalt. The gravel also allows water to drain away from the driveway completely so cracks do not form in the material. Gravel also should be placed underneath your brick pavers so they do not sink into the wet earth or crack under pressure. Angular gravel is not required, because the pavers will not retain nearly as much pressure as your driveway.
Instead of picking larger construction gravel, consider a medium sized pea gravel for the base underneath your brick pavers. Crushed gravel can be used, but choose a smaller sized material. Consider #8 crushed stone that features rocks that are between three-eighths of an inch and one-half an inch in diameter. Crushed stone #3 can be used too, because it is often utilized for drainage purposes. This type of stone may contain pieces of gravel that are about two inches in diameter. You can remove these pieces if you want so the majority of the gravel is closer to about one-half an inch big.
Placing Your Gravel
Once you purchase the gravel you want, dig a trench along the right and left sides of your driveway with a shovel. The trench should be six and one-quarter inches deep and ten inches wide. Fill in the trench with gravel that fills the entire width of the space. The gravel should sit only about four inches deep though. Bricks are two and one-quarter inches thick, so this allows for enough space to secure the bricks. Bricks are also almost eight inches long and the extra two inch width of the gravel will ensure good drainage underneath the bricks.
Once the gravel is secured, set the bricks over the top of the rocks and fill in dirt around them.
Secure Paver Restraints
Even if you take care of drainage issues by placing gravel underneath your bricks, you may have some issues with migration. This happens if car tires press on the edges of the bricks or if weeds decide to grow in between the pavers and the asphalt driveway. You can keep migration to a minimum by placing paver restraints along the outside edge of the bricks you secure. These restraints need to be placed during the initial installation before you fill in spaces with dirt.
There are a variety of different types of paver restraints that you can purchase. For the best security, locate restraints that are about one or two inches wide. Also, the devices should secure with stakes made out of metal materials. Stakes that are between about six and eight inches long are best. After you buy the restraints, set the long plastic piece tightly along the edge of the bricks. Use a rubber mallet to secure the stakes in the provided holes. Angle the stakes down and towards the bricks to help push the restraint edging piece tightly against them.
If you want to help retain the edges of your asphalt driveway, then it is wise to place edging materials. Bricks are a stylish type of edging, and the tips above will help you to make sure that the bricks are secured as much as possible.
Check out sites like http://www.lakeridgepaving.com for more info.
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