Table 1 Chemical constituents of fly ash and GGBFS26,32.

From: Large CO2 reduction and enhanced thermal performance of agro-forestry, construction and demolition waste based fly ash bricks for sustainable construction

Chemical constituents

GGBFS  (content %)

Fly ash (content %)

SiO2

28.3

58.56

Al2O3

18.0

28.39

Fe2O3

0.3

4.82

SiO2 + Al2O3 + Fe2O3

46.6

91.77

SO3

3.4

0.54

Na2O

4.0

0.09

K2O

1.93

0.89

TiO2

1.81

2.63

CaO

29.2

1.98

MgO

8.4

0.9

MnO

0.8

0.12

Loss on ignition

6.7

1.08

Blaine fineness (m2/kg)

339

394

Average particle size (µm)

25.1

25.6

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