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Table 1 Physical properties and chemical composition of binder.

From: Effect of Red Mud Content on Strength and Efflorescence in Pavement using Alkali-Activated Slag Cement

Type of binder

Specific surface area(cm2/g)

Density (g/cm3)

Ig. loss

Chemical composition (%)

SiO2

Al2O3

Fe2O3

CaO

MgO

SO3

OPC

3144

3.15

1.32

21.7

5.7

3.2

63.1

2.8

2.2

AAS

4058

2.83

2.23

22.1

8.9

1.4

54.9

3.3

5.2

  1. OPC Ordinary Portland Cement, AAS alkali-activated slag cement.