Civil Engineering Reference
In-Depth Information
100
M-FA-N
90
80
70
60
50
40
Air
Seawater
Na
2
SO
4
4.4%
30
20
10
0
0
40
80
120
160
200
240
280
320
360
400
Time (days)
(a)
100
90
80
70
60
50
40
Air
Seawater
Na
2
SO
4
4.4%
30
20
10
M-FA-W
0
0
40
80
120
160
200
240
280
320
360
400
Time (days)
(b)
17.12
Compressive strength in fly ash mortars activated with (a)
NaOH (M-FA-N) or (b) NaOH + Na
2
SiO
3
(M-FA-W) (Fernández-Jiménez
et al. 2007).
Resistance to acid attack
resistance to acid attack is another test applied to assess material durability.
Several authors (allahverdi and Škvára,
2001; rostami and Brendley,
2003;
Pacheco-Torgal
et al.,
2012) have reported that alkali-activated metakaolin or
