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SEM images of the hardened SCGM cured for 6 h and 28 days: (a) L‑00 cured for 6 h; (b) L‑20 cured for 6 h; (c) L‑40 cured for 6 h; (d) L‑00 cured for 28 days; (e) L‑00 cured for 28 days; (f) L-00 cured for 28 days. (E: Ettringite; Mc: Mono-carbonate; AH3: Aluminum hydroxide gel; A: Anhydrite; G: Gypsum).
