Question

Assignment No. 2 Table below gives the volumetric design values obtained for superpave system design mixture. Draw the four plots VTM, VMA, VFA, and density at Ndesign versus the asphalt percent. Nominal maximum size of the aggregate mixture is 19 mm. Traffic load (ESAL) > 3x105 AC% VTM% VTM% VFA% Density (kg/m) 4.5 9.0 16.0 40 2350 5.0 6.9 15.1 52 2400 5.5 5.8 14.9 60 2420 6.0 3.5 13.8 74 2450

Answer 1

Hi there, i think the row headers in the table are incorrect. The 2nd column should be labelled VMA. Anyways i will correct and do it

AC% VTM% VTM% VFA% Density (kg/mº)

=======================================================================================================================

So we have our table as follows

AC% VMA% 16 VTM% 9 6.9 5.8 3.5 VFA% 40 52 4.5 5 5.5 6 15.1 14.9 13.8 Density (kg/mº) 2350 2400 2420 2450 60 74

So we can plot the different plots against AC%

VTM% vs AC % VMA % vs AC % 10.0 16.5 9.0 16.0 8.0 7.0 15.5 6.0 Percent VTM 5.0 Percent VMA 15.0 4.0 14.5 3.0 2.0 14.0 1.0 0.0 13.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 4.5 5.0 5.5 6.0 6.5 AC % AC %

VFA% vs AC % Density vs AC % 80.0 80.0 70.0 70.0 60.0 60.0 50.0 50.0 Percent VFA 40.0 Density (kg/m) 40.0 30.0 30.0 20.0 20.0 10.0 10.0 0.0 0.0 4.0 4.5 5.0 5.5 6.0 6.5 4.0 4.5 5.0 5.5 6.0 6.5 AC % AC %

Please rate +vely to encourage us to keep giving good solutions.

Thanks