Parameter (%)

N.E

N.W

N.C

S.W

p-Value

BSEN 196-2 [18]

SiO2

19.0 ± 0.25a

22.10 ± 0.76b

19.50 ± 0.07b

21.90 ± 0.58c

0.00

18.0 - 24.0

Al2O3

5.18 ± 0.18a

5.85 ± 0.01b

5.01 ± 0.03a

6.25 ± 0.14c

0.00

2.6 - 8.0

Fe2O3

2.50 ± 0.17a

5.00 ± 0.08b

3.23 ± 0.40c

4.85 ± 0.05b

0.00

1.5 - 7.0

CaO

58.60 ± 0.40a

64.25 ± 0.23b

60.50 ± 0.67c

61.58 ± 0.64b

0.00

61.0 - 69.0

MgO

1.20 ± 0.10a

3.50 ± 0.06b

1.80 ± 0.14c

3.52 ± 0.05b

0.00

0.5 - 4.0

SO3

2.01 ± 0.15a

3.50 ± 0.08b

1.57 ± 0.21a

2.85 ± 0.09c

0.00

0.2 - 4.0

IR

1.70 ± 0.02a

2.20 ± 0.04b

1.50 ± 0.16a

1.80 ± 0.16a

0.00

≤1.5

LOI

8.10 ± 0.03a

7.82 ± 0.10a

8.72 ± 0.06b

8.50 ± 0.24ac

0.003

≤4.0

MC

0.25 ± 0.08a

0.50 ± 0.09b

0.20 ± 0.03a

0.35 ± 0.08ac

0.006

-

Free Lime

1.04 ± 0.05a

1.20 ± 0.12b

0.88 ± 0.04c

0.98 ± 0.04ac

0.002

≤2.0