Page 377 - Handbook of Thermal Analysis of Construction Materials

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9

Introduction to

Non-Portland Cement

Binders and Concrete

1.0 INTRODUCTION

Portland cement-based concretes are the most widely used in the
construction industry. Non-portland cement-based systems, particularly
those that have fast hardening and strength development characteristics, are
well suited for special applications, many of these related to the repair of
concrete structures.
The performance of many non-portland cement-based repair mate-
rials is dependent on the chemistry and physics of the system, the properties
of the existing concrete, and the environment. Thermal analysis techniques
are increasingly being used to investigate the physico-chemical behavior of
non-portland cement binders exposed to aggressive environments.
This chapter provides a description of the hydration and engineering
behavior of special cements including: magnesium oxychloride and oxysulfate
cement; calcium aluminate cement; portland-calcium aluminate blended
cement; phosphate cement; regulated set cement; and gypsum.

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