Problem # $5(10$ Points$)$

An asphalt concrete cylinder specimen with a $100$ mm diameter and $152\mathrm{.}40$ mm height is

subjected to an axial compressive static load of $0\mathrm{.}7$ kN for $1$ hour, after which the load is

removed. The test is performed at $40C.$ The height of the specimen was measured at

different times with intervals during loading and unloading for a total of $2$ hours and

produced the following results.

a$)$ Plot using a spreadsheet program the stress$-$time and strain$-$time $($two separate

plots$)$

b$)$ How much are the elastic and viscoelastic strains?

c$)$ What is the permanent strain at the end of the experiment?