This spreadsheet calculates the design maximum allowable traffic loading for a Cement Bound Materials (CBM) foundation using the Australian AustRoads standard. This can be used in conjunction with an elastic analysis program such as our Elastic Analysis Tool to design a CBM layer which can be added into a full pavement design package such as the MEDG Asphalt Design Spreadsheet.
The spreadsheet takes user input values for the elastic modulus of the CMB layer and the strains imposed on the layer under traffic loading. This strain can be calculated using an elastic analysis program such as our Elastic Analysis Tool. Then the spreadsheet calculates maximum allowable traffic loading for this CBM layer.
The spreadsheet also includes unique tools allowing the user to see the effects of different CBM elastic moduli and different strains, without re-entering any of the input data. This makes it easy for the designer to quickly calculate the required CBM elasticity or the maximum strains for a particular traffic loading.