$7\mathrm{.}7$ The asphalt mixture in Problem $7\mathrm{.}5$ is subjected to an initial tensile strain of $0\mathrm{.}00015.$ Determine the number of repetitions to failure by the nomograph shown in Figure $7\mathrm{.}26,$ using constant stress and constant strain tests, respectively, and check the results by using Eqs. $7\mathrm{.}33$ and $7\mathrm{.}35.[$Answer: $8\mathrm{.}8{10}^5$ and $8\mathrm{.}1{10}^7]$