1. Chapter 3
Cement

2. §3.1 Introduction
Advantages of cement
Classification
Summary

3. Introduction Portland cement was developed in the nineteenth century.
It has become one of the most important building materials.
It has complex chemical compositions, but the main cementing compound is calcium silicate hydrate.
Ordinary Portland cement can be modified for high early strength, for sulfate resistance, for low heat production, or for use in masonry.

4. Introduction
For architectural use, it can be formed white, black, or in various colors.
High-alumina cement and magnesium-oxy-chloride cement are different from Portland cement in chemical compositions.

5. Introduction Classification Application General Cement Portland Cement
Ordinary Portland Cement
Portland Blast-Furnance-Slag Cement
Portland Pozzlana Cement
Portland Fly-Ash Cement
Composite Portland Cement

6. Characteristic Cement
Introduction
Classification
Special Cement
Masonry cement
Oil well cement
Characteristic Cement
Quick-hardening cement
Expansive cement
Sulfate resisting cement
Modified cement

7. Sulfoaluminate Cement
Introduction
Classification
Chemical Component
Portland Cement
Common engineering
Aluminous Cement
Sulfoaluminate Cement
Rush- repairing project, earlier strength project, engineering constructing in winter, anti-corrosion and freezing resistance
Earlier strength/Antisulfate/Rush-repairing project/Anchor/ underground engineering

8. Summary
Among many types of cement used in China, Portland Cement accounts for more than90% of the products of cement. We should stress the study of the compound, technical property, and application of Portland Cement in cement learning.