Rigid Pavement Design
Rigid Pavement Design
(OP)
All,
I'm looking for a calculator that is easily accessible that I can use to back calculate the adequacy of a concrete section. Basically I'm encountering the need to show whether a 4" Concrete Over 12" Aggregate Base will hold an occasional 22,000 lbs axle load. Long while ago, I used to use or have access to kenlayer/kenpave for pavement design during my years in school. Anything outer that anyone recommends? By they way, I realize many DOTs have tables available, those I can definitely access but I'm interested to learn what other tools are outer. As always, thank you in advance for your help and recommendations.
I'm looking for a calculator that is easily accessible that I can use to back calculate the adequacy of a concrete section. Basically I'm encountering the need to show whether a 4" Concrete Over 12" Aggregate Base will hold an occasional 22,000 lbs axle load. Long while ago, I used to use or have access to kenlayer/kenpave for pavement design during my years in school. Anything outer that anyone recommends? By they way, I realize many DOTs have tables available, those I can definitely access but I'm interested to learn what other tools are outer. As always, thank you in advance for your help and recommendations.





RE: Rigid Pavement Design
RE: Rigid Pavement Design
Given all that, 4" is too thin. It will likely crack from the loading. That thickness will also likely crack from subgrade restraint. It is difficult to control the thickness of a 4" slab within ACI tolerances.
RE: Rigid Pavement Design
https://transportation.erdc.dren.mil/pcase/
For quick checks, I also have my own spreadsheet based on Westergard's theory for stresses in rigid pavements.
By the way, as mentioned above, the Yoder and Witczack's book is a good reference. I also used "Pavement Analysis and Design" by Yang H.Huang.
Also, as OG and Ron suggested, your 4" PCC layer may not be appropriate. My recommendations for minimum thickness for PCC layers is 6".
RE: Rigid Pavement Design
https://tools.infopave.fhwa.dot.gov/Rigid/Rigid.as...
You will need to create a free account to use the online tool.
RE: Rigid Pavement Design
Will certainly look into these. Thank you again