in Fig. 1, respectively. The mix proportions of the control UHPC matrix are listed in
Table 2. For the modified UHPC matrix with single nano-material (either NS or NC),
W/B ratios varying from 0.16 to 0.22 were used. For the modified UHPC matrix with
blended nano-materials (both NS and NC), only W/B ratio of 0.16 was used. The mix
proportions for the modified UHPC matrix are listed in Table 3. W