Fig. 3. Cumulative density functions for the cumulative probability density function P(E E_i) vs. specific rupture energy E before and after normalization of E to the air-dry state [E(w/w₀)] for (a) and (b) 4- to 8-mm Bygholm I aggregates, and (c) and (d) 8- to 16-mm Bygholm II aggregates. PAC = compacted treatment, and REF = reference treatment.