Table 1 The chemical composition of cement.

From: Biochar modification enhances mechanical and durability properties of cement-based materials

Name

Chemical composition (%)

CaO

SiO2

Fe2O3

Al2O3

MgO

SO3

K2O

Na2O

Cement

54.87

28.1

4.29

6.38

2.69

2.67

0.64

0.36