The goal of an asphalt overlay is to place new asphalt on top of existing asphalt pavement.
Asphalt over lay and curb and gutter.
It is filled with a gutter that is a flat concrete slab that drains water out of the yard normally curb and gutters are constructed simultaneously at a site.
They are mainly installed at the perimeter of a road or parking lot.
The main purpose of curb and gutter is to reinforce the pavement that is being laid down as a road surface.
A machine known as an asphaltic mill will shave the top of an asphalt surface down to enable the new asphalt to match existing asphalt curb and gutter sidewalks or concrete pads.
The edge of asphalt is the weakest point and the most vulnerable to damage from vehicles.
The curb holds the asphalt pavement in place even if a vehicle drives or parks on the edge of the asphalt surface.
On those roads with curb and gutter a standing joint was specified after being discussed with the hoa as one of the options available.
That is we at southern asphalt engineering inc.
It is poured first before asphalt is brought in normally around eight inches thick and creates an extremely strong barrier.
Often use an asphaltic mill to remove the outer layer of an asphalt surface.
Asphalt curb and gutter.
Curb and gutter are usually installed in the perimeter of the road or parking lot the curb is a small wall that serves to hold the pavement from the sides acts as a barrier between the yard and road.
Other options included milling adjacent to c g milling entire width etc.
The use of curbs and gutters protects the edge of the asphalt from damage due to vehicle loads.
The main purpose of a curb and gutter is to define the edges of a lot holding the pavement in place and serving as a termination to prevent the pavement from expanding and.
Curb and gutter is the first part of the parking lot to be installed and is done to a strict tolerance.
How is an asphalt overlay constructed.
Prepare and form pour from truck tamp and oil finish 8 tall by 6 wide curb on top a 4 thick aggregate base.
Item unit cost quantity line cost.
Most overlays begin with milling.
The asphalt is usually placed so that it drains toward the curb and gutter thus allowing the water to eventually flow to the catch basin or other exit point.
This depends on the project but usually the first process involves milling.
I recently administered an asphalt overlay contract in a residential community with a combination of roads with and without curb and gutter.
A concrete curb and gutter is a pavement curb and roadway gutter cast together in one piece.
Include costs for miscellaneous material 25 mile delivery equipment and waste.
Vehicles driving and or parking to close to the edge of an asphalt driveway will cause the edges to buckle under the weight.
This first step allows us to integrate the new asphalt with the old asphalt curb gutter and.
Please feel free to contact brian uder project manager at 805 788 2931 with any questions or comments.
