1 radical A pavement element of 700 x 500 x 350mm (x-y-z-direction) is subjected to an equal all round pressure of 320 KN/m2 and an axial compressive load of 5.8 KN in the x- direction. The changes in length are -2.4 mm in x-direction, +0.93 mm in y-direction and +0.65 mm z-direction. Determine the: (a) Stress Matrix (b) Strain Matrix (c) Stiffness Matrix (d) Bulk Modulus