Question $1$:

$(20$ Points$)$

Develop a flowchart outlining the Superpave mix design process, including key steps and specifications for both binder and aggregates.

Question $2$:

$(10$ Points$)$

What Performance Grade $($PG$)$ asphalt binder should be selected based on the following conditions:

$-$ The seven$-$day maximum pavement temperature has a mean of $\backslash (60^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ with a standard deviation of $\backslash (2^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$

$-$ The minimum pavement temperature has a mean of $\backslash (-12^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ with a standard deviation of $\backslash (4^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$

$-$ The required reliability is $\backslash (99\mathrm{.}9\backslash \%\backslash ).$