ABSTRACT
For design of new roads it is necessary to know the E-modulus of the different materials to be used in the pavement. In Denmark CBR-test or vane test are normally used to give a rating of the E-modulus of the natural subgrade. The Light Weight Deflectometer (LWD) offers a direct measure of the in situ E-modulus. A picture of a LWD is shown in Figure 1.
