Design Protection & Specification Strength

Having completed your design using Tensar's online software, you now have a proposal that adopts the proven performance of a Tensar mechanically stabilized granular layer as a component of the overall design to achieve the required project trafficking performance.

So, to ensure your project ultimately benefits from this built-in performance, you can now generate a supporting specification to accompany your completed design. You will have already seen that there are several specification options available to you at the end of the design process.

Components of a specification

What can be specified?

• Overall roadway thickness to achieve project performance targets
• Mechanically stabilized layer (MSL) component thickness and achieved structural number
• Geogrid component - identified with tabulated characteristic parameters

How has the performance been achieved?

• Geogrid contribution was obtained from extensive full-scale trafficking trials complying with AASHTO guidance
• Experience of on-site testing confirming structural requirements of MSL has been achieved
• Bespoke design software applying geogrid contribution
• 3rd party review and validation of design software

Specification content is aimed at providing the most effective protection of the performance built-in to your completed design and so including as many of the "What" and "How" components above increases the specification strength accordingly.

The recommendations on specification selection that follow are provided to allow you as a designer to reduce the risk of losing the performance achieved in your design assessment and the time you may need to spend assessing alternative proposals typically based on product comparisons.

Available specification options have been color-coded here and in the Tensar software specification selection window.