CBM Design Parameters

These spreadsheets estimates a number of common design parameters for Cement Bound Materials (CBM) foundations including flexural strength and static and dynamic moduli. This can be used in conjunction with a CBM design tool such as CBM UK Design to design a CBM layer which can be added into a full pavement design package such as the MEDG Asphalt Design Spreadsheet.

The spreadsheet uses two different methods to calculate the CBM layer design parameters. The first method takes the standard CBM layer type as defined in the UK DMRB and then uses the compressive strength of the CBM layer to estimate the flexural strength and dynamic modulus.

The second method assumes a non standard CBM type. Using inputs for the CBM layers aggregate type and compressive strength, the spreadsheet then estimates the layers flexural strength and static and dynamic moduli.

These spreadsheets also include unique tools allowing the user to see the effects of different compressive strengths without re-entering any of the input data. This makes it easy for the designer to quickly calculate the required compressive strength for a particular flexural strength or static/dynamic modulus.

Flexible Road Structural Design Spreadsheet - CBM Design Parameters Spreadsheet.

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