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grayswanfarm
May. 4, 2011, 09:45 PM
Has anyone had experience using "popcorn asphalt" in their driveway? Supposed to be cheaper- Part of the driveway is an incline and the asphalt millings can't handle a hard rain. I'm too cheap to go for paving.:D

goodhors
May. 4, 2011, 10:25 PM
Not familiar with the popcorn or millings terms related to asphalt.

We have a parking area, fairly level, using recycled asphalt. It was like stone when it was delivered, small loose pieces, but has gotten solid after being spread and driven on, heated during hot summer days.

We laid geotextile fabric first, since the area was very wet and we didn't want to lose the asphalt like we had the previous gravel spread there.

This parking area is thickly laid, since it is the semi-truck and trailer storage area, needed to handle the weight above. We did add more of the loose asphalt two years after the first stuff, again spread it evenly, to make a thicker base.

Nice thing about asphalt is that heat in summer seems to get it heated enough to solidify, never washes away for us, even with heavy, seasonal rainfall and some flooding at times. This is located in the lowest area of the farm, all the draining water runs by here going into the drainage ditches.

Maybe if you could put it down on a cool morning, get asphalt in place, then let the heat of the day get it settled and sticky to make it more solid, everything would stay in place on hilly areas. Just an idea for you.

clanter
May. 5, 2011, 05:10 PM
actually it is more expensive to put down... well at least when put down correctly

Limitations
Several factors can limit the type and number of applications for which porous pavement systems are appropriate:

Potentially higher initial cost. Porous pavement systems may cost more to construct than traditional pavement systems because of expenses related to constructing the required recharge beds and fabric fi lters. These higher costs may be offset, however, by reduced expenditures for other storm water management features like sewers, land set-asides, and detention ponds.
Road bed preparation. The top 6 inches of subgrade must be granular material with less than 10 percent silt or clay. This requirement generally results in special road bed preparation.
http://www.intrans.iastate.edu/ltap/tech_news/2007/jan-feb/pervious_pavement.pdf