Civil Engineering Reference
In-Depth Information
b
-C
2
S 48.7(2)
g
-C
2
S 2.6(1)
C
4
A
3
S
ort 14.6(5)
C
4
A
3
S
cub 13.5(5)
C
4
AF
1.0
0.8
14.9(2)
C
2
AS
4.4(1)
0.6
CT
1.3(2)
0.4
0.2
0.0
(a)
1.5
a¢
H
-C
2
S 56.7(2)
C
4
A
3
S
cub 31.1(5)
C
4
AF
10.1(2)
CT
2.1(2)
1.0
0.5
0.0
20.0
25.0
30.0
35.0
40.0
Position [2-theta (deg)]
(b)
18.2
Selected range of the laboratory X-ray powder diffraction
Rietveld plots for a typical BCSAF clinker without activation (a) and
borax-activated BCSAF clinker (b). Crosses are the experimental
scan, solid line is the calculated pattern and the line on the bottom is
the difference curve. The Rietveld quantitative phase analysis results
are shown in the insets. The major peaks for each phase are also
labeled. Solid and dotted arrows highlight the presence of
b
-C
2
S and
a¢
H
-C
2
S, respectively. Asterisk indicates the angular range indicative
of cubic or orthorhombic C
4
A
3
S
. Adapted from Álvarez-Pinazo et al.
(2012).
