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Table 2 Chemical compositions of cementitious materials(%)

From: Influence of steel plates on the compressive strength and pore structure of concrete

Composition (mass)

Cement

Fly ash

SiO2

21.47

49.47

CaO

65.77

4.45

Al2O3

5.47

20.67

Fe2O3

4.28

14.32

MgO

1.44

1.17

SO3

0.52

1.40