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Water absorption of mortars that were prepared at a water to cement ratio of (a) 0.35 and (b) 0.5 (Note: NA, natural aggregate; U-RCA, untreated recycled concrete aggregate; C-RCA, recycled concrete aggregate treated without bacteria; B-RCA, recycled concrete aggregate treated with bacteria). Reprinted with permission from [42]. Copyright 2021 Elsevier.
