Design Utility This design utility solves the 1993 aashto Guide basic design equation for flexible pavements.
Typically, a standard set of load types is used (e.g., single unit trucks, tractor-trailer trucks and buses).
The number of esals a rigid pavement can carry over its lifetime is very sensitive to slab depth. .End-of-life (called terminal serviceability and designated.5.0 depending upon road use (e.g., interstate highway, urban arterial, residential) Load transfer coefficient (J Factor). .Check out our new, research Center for a more in-depth look at the research behind our geogrids and software.The pavement structure is characterized by the Structural Number (SN). .The difference in present serviceability index (PSI) between construction and end-of-life is the serviceability life. .Typical values used now are: Post-construction:.0.0 depending upon construction quality, smoothness, etc.SP4-PRO is a comprehensive, systems-based pavement design software suite that offers the full benefits of Tensar's knowledge and experience in analyzing both subgrade stabilization and pavement optimization applications.
Subgrade support is characterized by the subgrades resilient modulus (MR). .
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Rigid pavement is assigned a drainage coefficient (Cd) that represents the relative loss of strength due to its drainage characteristics and the total time it is exposed to near-saturation moisture conditions. .
Optimizing Paved Roads, and Stabilizing Unpaved Roads and Construction Platforms.The following subsections discuss: Assumptions, from the, aasho Road Test, equations were developed which related loss in serviceability, traffic, and pavement thickness. .In order to apply the equations developed as a result of the.Patch Change Log, cumulative Patch Update 4 for 32-bit.Because of the peril associated with its use, often times the drainage coefficient is neglected (i.e., set as.0).Although this assumption is not true, pavement structure depths calculated using it are reasonably accurate. .Solve the design equation for.Typical J factor values are as shown below.SpectraPave4-PRO Software (SP4-PRO) is a road construction software that provides pavement design engineers the most powerful tool available for evaluating design options and optimizing pavement performance using Tensar Geogrids.Condition J Factor Undoweled PCC on crushed aggregate surfacing.8 Doweled PCC on crushed aggregate surfacing.2 Doweled PCC on HMA (without widened outside lane) solaris 10 update 10 x86 and tied PCC shoulders.7 crcp with HMA shoulders.9.2 crcp with tied PCC shoulders.3.9 Modulus.PCC modulus of rupture (flexural strength). .In design, the rigid pavement equation described in this chapter is typically solved simultaneously with the rigid pavement esal equation. .Compare the esal values in #5 and #6. .