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Frequently Asked Questions - Paving, Driveways & Parking Lots

Driveway Installation & Care Information

How long will my driveway be removed for?
In removing your old asphalt driveway, it will be necessary to run heavy equipment over the driveway. In doing this, the area under the base (called the sub-base) often times is clay and can get soft. During dry times of the year, some driveways will stay very hard after removal. Each driveway is different, however. Typically, during the spring, it is necessary to let them sit longer to fm back up. As we try to offer the best guarantee possible, it will be our decision on when your driveway is reinstalled. During the summer months we will usually let the driveway sit 7-10 days. In the spring or during wet months they can sit as long as 2-3 weeks. You can drive and park on the driveways while you are waiting for them to be paved.

What different types of asphalt are there?
There are two different types of asphalt that we use in the driveway business. 41A, or driveway mix, as it is often called, is the most common type of asphalt that we use in driveways. Asphalt is made up of rock and asphalt oil. In the 41a mix, the rock ranges from sand to a ?4 inch max rock diameter. The oil content in the mix is 5.8 % - 6.0 % oil. The more oil in the mix, the longer it will hold the sand and rock together. On the other hand, for the first year or two, this additional oil can make the driveway more susceptible to tire marks and heavy wheel load problems. If you're just driving cars and light trucks on your driveway, 41a is fine. The other mix we use is 41b. This mix has a range from sand to 5/8 inch max rock diameter, and the oil content is dropped down to about 5.5 % oil. The advantage to this combination is heavier wheel load applications, such as a motor home or 1 ton tuck. The disadvantage with the larger rock is the finish is not always quite as smooth.

How long do I need to stay off my new driveway?
We recommend that you don’t park on your new driveway for one week. Asphalt becomes soft with heat and when its hot outside and the sun is on your driveway, it becomes very hot. On these days, if you can just as easily park in the garage as on the driveway, you could save your self some potential problems.

Other Common Concerns & Questions Regarding Paving and Asphalt:

Tire marks
These are usually caused by turning your tires in one place without the car moving. Try to have the wheels rolling a little when turning around on hot days. Most of these small imperfections will disappear after the first year.
Sharp objects
Sharp objects such as chair legs, kick stands, tables, ladders, etc., will sink into a asphalt driveway. If you put a piece if wood under them it will keep them from sinking in.
It is important to remember that asphalt is made up of 94% rock. In areas where hand raking is necessary, you may be able to see some of these rocks. After a driveway has been seal coated it will look very smooth and you won’t be able see as many of these rocks.
Seal coating
I could probably type three pages on this subject alone, so I will try to keep this a brief as possible. In my opinion, a driveway that has been over sealed or not been properly cleaned before it was sealed, will be in worse condition than one that has never been sealed at all. As the driveway cures out, the sun and rain oxidizes and washes the oils out of the driveway, the surface will start to harden and turn gray. This is what you want. Another thing that happens as the driveway ages, is the sand around the larger aggregate will start to wash out and the driveway will become more textured. This allows the driveway to take more sealer, so the sealer lasts longer. When the driveway is new, it has a lot of oil on the surface. The surface is also very smooth. Both of these thing will take away from a seal coat job. Once you seal the drive, you are keeping those oils in and slowing down the curing process. So in my opinion, you want to wait at least 2 years before sealing your driveway, and when you do, make sure it is very clean. The first time you should put on two coats; then one coat after that; and not more than once every three to five years. If you over seal, it will start to peel and flake off and look worse than if you had never sealed at all. When done properly it can make your driveway look better than the day it was new, and extend the life.
Gas and oil
Do not fill the lawn mower, or anything else for that matter, with gas on the driveway. If you spill gas on the driveway, it will wash the asphalt oils out in the area where it was spilled or leaked. What you will be left with is an area of sand and rock that won’t get hard again. Oil will stain and soften areas, but not as bad a gas.
Heavy trucks and equipment
When we design your driveway, it is built to stand cars and light trucks. A heavy truck, especially in the spring when the frost is coming out, during wet times of the season, or on hot days, will absolutely destroy your driveway. Keep them off!
All driveways, will at some point, get some cracks in them. Give us a call, and for the fist two years, we will come out and fill them. After that, you can purchase a gallon of crack filler. And just touch them up as needed.


  Specialists in Twin Cities Residential Driveways and Parking Lots for over 20 Years!

Serving the cities of Minneapolis, St. Paul, Bloomington, Burnsville, Edina, Eden Prairie, Minnetonka, Plymouth, Shakopee, Chanhassen
and other Twin Cities Communities.

Ace Asphalt is a Service Mark of Ace Asphalt Inc.
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Phone: 952-938-6137