Cement

Classification

Characteristics

Applications

Type I

General purpose
Fairly high C3S content for good early strength development
General construction (most buildings, bridges, pavements, precast units, etc)

Type II

Moderate sulfate resistance
Low C3A content (<8%)
Structures exposed to soil or water containing sulfate ions

Type III

High early strength
Ground more finely, may have slightly more C3S
Rapid construction, cold weather concreting

Type IV

Low heat of hydration (slow reacting)
Low content of C3S (<50%) and C3A
Massive structures such as dams.  Now rare.

Type V

High sulfate resistance
Very low C3A content (<5%)
Structures exposed to high levels of sulfate ions

White

White color
No C4AF, low MgO
Decorative (otherwise has properties similar to Type I)