229
Table 8.4
The mineralogical composition ofthe studied bricks.
ShB-1020 |
CMWR-1020 |
TCMT-1020 | |
Quartz |
43.72 |
61.6 |
59.5 |
Albite |
25.5 |
10.35 |
9.82 |
Anhydrite |
5.07 |
5.68 |
7.77 |
Magnetite |
2.59 |
1.34 |
1.64 |
Hcmatite |
8.65 |
13.43 |
12.78 |
Rutile |
2.13 |
0.34 |
0.9 |
Spinel |
12.33 |
7.27 |
7.58 |
8.2.4 Leaching behavior of raw materials and fired bricks
The experimental approach followed in this study is described by the diagram in Figurę 8.1. The specific objectives were to characterize the leaching behavior of (1) the raw materials (ShB, CMWR and TCMT) and (2) the fired bricks (at 1020°C) designed as ShB-1020, CMWR-1020 and TCMT-1020. The leaching behavior of raw materials is assessed according to TCLP and CTEU-9 (described in sections 2.3.1 and 2.3.2) methods. After the manufacture of respective brick blocks of ShB. CMWR and TCMT. the leaching behavior of these blocks was evaluated according to two categories of tests; on granular bricks (grinded bricks) (TCLP. CTEU-9 and pi l dependence test) and on monolithic blocks (NEN 7375) as described in Figurę 8.1.