Be wary of anyone who claims that they have extra asphalt that they can put down for a discounted price. The asphalt will most likely be of poor quality and workmanship.

In order to achieve proper drainage and prevent a collapsed or heaved driveway, the surface should be graded so that water runs off to the sides or bottom. {“smallUrl”:“https://www. wikihow. com/images/thumb/e/e4/Install-Asphalt-Step-3Bullet1. jpg/v4-460px-Install-Asphalt-Step-3Bullet1. jpg”,“bigUrl”:"/images/thumb/e/e4/Install-Asphalt-Step-3Bullet1. jpg/aid1363836-v4-728px-Install-Asphalt-Step-3Bullet1. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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<br />\n</p></div>"} Run a hose at the top of your driveway to determine where the water runs. Keep in mind that this sub-base must be completely dry before putting in new asphalt so that the asphalt will adhere fully when installed. {“smallUrl”:“https://www. wikihow. com/images/thumb/0/0d/Install-Asphalt-Step-3Bullet2. jpg/v4-460px-Install-Asphalt-Step-3Bullet2. jpg”,“bigUrl”:"/images/thumb/0/0d/Install-Asphalt-Step-3Bullet2. jpg/aid1363836-v4-728px-Install-Asphalt-Step-3Bullet2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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<br />\n</p></div>"} Build mounds and fill in low spots to achieve the proper grade. An optimal slope is 1/4 inch per foot (0. 635 cm per 30. 48 cm). {“smallUrl”:“https://www. wikihow. com/images/thumb/2/28/Install-Asphalt-Step-3Bullet3. jpg/v4-460px-Install-Asphalt-Step-3Bullet3. jpg”,“bigUrl”:"/images/thumb/2/28/Install-Asphalt-Step-3Bullet3. jpg/aid1363836-v4-728px-Install-Asphalt-Step-3Bullet3. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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The type of crushed rock used is crucial to proper drainage. The composition of the rock should be coarse and jagged. This type is usually called ‘3/4" minus’ or ‘Road-base’ mix. {“smallUrl”:“https://www. wikihow. com/images/thumb/5/5c/Install-Asphalt-Step-5Bullet1. jpg/v4-460px-Install-Asphalt-Step-5Bullet1. jpg”,“bigUrl”:"/images/thumb/5/5c/Install-Asphalt-Step-5Bullet1. jpg/aid1363836-v4-728px-Install-Asphalt-Step-5Bullet1. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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<br />\n</p></div>"} If your underlying soil is clay-based, you will need 8 inches (20. 32) of crushed rock. {“smallUrl”:“https://www. wikihow. com/images/thumb/0/08/Install-Asphalt-Step-5Bullet2. jpg/v4-460px-Install-Asphalt-Step-5Bullet2. jpg”,“bigUrl”:"/images/thumb/0/08/Install-Asphalt-Step-5Bullet2. jpg/aid1363836-v4-728px-Install-Asphalt-Step-5Bullet2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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<br />\n</p></div>"} If your underlying soil is sandy, you will need 4 inches (10. 16 cm) of crushed rock. {“smallUrl”:“https://www. wikihow. com/images/thumb/0/0d/Install-Asphalt-Step-5Bullet3. jpg/v4-460px-Install-Asphalt-Step-5Bullet3. jpg”,“bigUrl”:"/images/thumb/0/0d/Install-Asphalt-Step-5Bullet3. jpg/aid1363836-v4-728px-Install-Asphalt-Step-5Bullet3. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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The size of the aggregate used to create asphalt pavement ranges from 1/2 inch to 3/4 inch (1. 27 cm to 1. 9 cm). Smaller aggregate is usually used for residential driveways because it gives a smoother appearance. If the aggregate is larger, however, the pavement is stronger. The best layer thickness is 2 to 3 inches (5. 08 to 7. 62 cm).

The asphalt should be formed at a 45-degree angle at the edges. {“smallUrl”:“https://www. wikihow. com/images/thumb/1/16/Install-Asphalt-Step-10Bullet1. jpg/v4-460px-Install-Asphalt-Step-10Bullet1. jpg”,“bigUrl”:"/images/thumb/1/16/Install-Asphalt-Step-10Bullet1. jpg/aid1363836-v4-728px-Install-Asphalt-Step-10Bullet1. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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