The Potential to Replace Cement with Nano-Calcium Carbonate and Natural Pozzolans in Cemented Mine Backfill

Figure 6

Maximum unconfined compressive strength (UCS) for backfill samples prepared with 0 (reference), 1, 3, and 5% nano-calcium carbonate (NCC) and 0, 10, and 60% superplasticizer (SP). See Table 5, for mixture designs.