Table 1 Chemical composition of P.O.42.5 cement.

From: Dynamic properties of mortar with oyster shell sand replacement

Oxide composition

CaO

SiO2

Al2O3

Fe2O3

SO3

MgO

Na2O

K2O

TiO2

62.35

20.77

4.26

3.15

2.08

0.80

0.65

0.43

0.16