Trr No. 1377 Pavement Design, Management, And Performance, pp. 1-2 This discussion group identified a number of limitations associated with the state of the practice of backcalculation and nondestructrive deflection testing (NDT). We did not attemptto make a distinction regarding whether the limitations were separately associated with backcalculation or NDT or were associated with both.
ASTM STP 546 Composite materials: testing and design