Characterization and Alumina Leachability of 12CaO·7Al₂O₃ with Different Holding Times

Table 1

𝑑 values in X-ray diffraction of samples with different holding times.

Peak serial	(ℎ𝑘𝑙)	𝑑
		30 min	60 min	90 min	120 min	150 min
1	(420)	2.67705	2.67824	2.67941	2.68201	2.68341
2	(211)	2.88512	4.88624	4.88508	4.89433	4.89955
3	(422)	2.44436	2.44539	2.44624	2.44887	2.44925
4	(521)	2.18660	2.18789	2.18803	2.18995	2.19073
5	(532)	1.94395	1.94407	1.94395	1.95581	1.96628
6	(400)	2.99582	2.99643	2.99735	2.99929	2.99938
7	(642)	1.60087	1.60160	1.60212	1.60296	1.60298
8	(640)	1.66104	1.66184	1.66249	1.66353	1.66376
9	(321)	3.19956	3.20032	3.20122	3.20449	3.20686
10	(750)	1.39310	1.39352	1.39376	1.39454	1.39464

The relative peak intensities decrease as the serial number increases.