Mechanical Properties and Hardening Mechanism of Magnesium Ammonium Phosphate Cements Modified by Fly Ash

Figure 7

SEM images of fly ash-modified MAPC at 28 days: (a) FA0 28 days; (b) FA10 28 days; (c) FA20 28 days; (d) FA30 28 days; (e) FA40 28 days; (f) FA50 28 days.

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