Table 1 Chemical constituents of binder materials.

From: Mechanical, workability, economic and environmental properties of concrete with limestone calcined clay cement and recycled aggregates

Binder type

Composition (%)

SiO2

CaO

Al2O3

Fe2O3

MgO

K2O

Na2O

Others

PO52.5 cement

16.8

70.4

3.2

4.1

1.4

0.1

0.2

3.8

Metakaolin

52.1

0.2

38.2

1.4

0.4

3.6

0

4.1

Limestone power

0.3

97.6

0.1

0

0.6

0.1

0

1.3

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