Select Your Application
In flexible pavement design, a structural number can be assigned to dense graded asphalt, aggregate base, subgrade, and geosynthetics such as geogrid, each contributing to the overall performance and expected design life of the pavement.
Input your project's region and size to determine optimal cross sections for unreinforced and geogrid-reinforced solutions when considering a heavy duty pavement application.
Solve for the estimated amount of asphalt required to rehabilitate a typical principal arterial section.
Rehabilitation is a necessary treatment that any pavement structure has to experience periodically during its structural life. A road agency on average typically gets 15 years of life from their overlays on Principal Arterials. Experience has shown that there are four design conditions that if present on a project each of which will incrementally reduce the expected overlay life. Typically if two or more of these conditions exist on a project, the use of an interlayer becomes a cost effectve solution to not only achieve the desired overlay life, but in many cases helps exceed it.
Select All Design Conditions That Apply
Low permeability soils such as clays, that are water sensitive
Where the truck traffic makes up more than 5% of the AADT
If no crack sealing has been performed on the existing pavement, then it is unlikley to be crack filled in the future
If there are patches, aligator cracking (fatigue), or wide subsoil cracks, then structural distress is considered to be present
ESALs
ESALs
Based on your design condition selections, interlayers may not be required to achieve your maximum desired design life for your overlay. This being the case, we recommend reaching out to a GEO Pro to verify the conclusion. Explore other potential cost saving solutions, such as paving fabrics, and request a free project evaluation.
