Table 4. Intensity of the principal XRD...

Table 4.

Intensity of the principal XRD reflection for the main phases present relative to that of brownmillerite

Sample	Relative intensity of main XRD reflection^a
Sample	Quartz^b	Tobermorite-11Å^c	α-C₂SH^d	Portlandite^e
Control: d
7	12·79	0·89	1·05	1·28
14	8·41	1·01	0·91	1·17
28	6·36	1·23	0·73	1·16
Phosphate: d
7	9·69	0·70	0·64	1·81
14	10·87	0·80	0·80	1·25
28	7·79	0·98	0·66	1·14
Borate: d
7	12·05	0·91	0·80	1·17
14	9·23	0·92	0·83	1·19
28	8·42	1·09	0·85	1·13
Tin: d
7	12·41	0·97	0·82	1·24
14	7·59	0·98	0·78	1·20
28	5·62	0·99	0·71	1·05
Zinc: d
7	7·20	0·98	1·02	1·23
14	5·61	1·06	0·75	1·17
28	4·10	1·15	0·67	1·11

Sample	Relative intensity of main XRD reflection^a
Sample	Quartz^b	Tobermorite-11Å^c	α-C₂SH^d	Portlandite^e
Control: d
7	12·79	0·89	1·05	1·28
14	8·41	1·01	0·91	1·17
28	6·36	1·23	0·73	1·16
Phosphate: d
7	9·69	0·70	0·64	1·81
14	10·87	0·80	0·80	1·25
28	7·79	0·98	0·66	1·14
Borate: d
7	12·05	0·91	0·80	1·17
14	9·23	0·92	0·83	1·19
28	8·42	1·09	0·85	1·13
Tin: d
7	12·41	0·97	0·82	1·24
14	7·59	0·98	0·78	1·20
28	5·62	0·99	0·71	1·05
Zinc: d
7	7·20	0·98	1·02	1·23
14	5·61	1·06	0·75	1·17
28	4·10	1·15	0·67	1·11

Compared with the main reflection for brownmillerite at 33·719°2θ (PDF 71-0667). This was used as a reference because it is unreactive (Bensted, 2008; Nelson and Guillot, 2006; Taylor, 1997) and the intensity of the main reflection was very similar in each sample

Quartz (PDF 77-1060); angle of principal reflection 26·628°2θ

Tobermorite-11Å (PDF 45-1480); angle of principal reflection 7·831°2θ

α-C₂SH (PDF 81-1987); angle of principal reflection 27·250°2θ

Portlandite (PDF 44-1481); angle of principal reflection 34·094°2θ

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