Investigation on the Deterioration Mechanism of Recycled Plaster

Table 2

Properties of POP and R-P under the similar SSA.

Gypsum	SSA (m^2·kg^−1)	W/P	Setting time (min)		2 h strength (MPa)		Dry strength (MPa)		Water absorption (%)
			Initial	Final	Flexural strength	Compressive strength	Flexural strength	Compressive strength
POP	1098	0.68	26	30	2.47	4.59	4.50	6.98	38.89
R-P	1114	0.85	33	46	1.66	2.94	2.70	4.80	40.65