CIVENG 3J04 Lecture Notes - Ground Granulated Blast-Furnace Slag, Portland Cement, Tricalcium Aluminate
6 Jun 2013
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Document Summary
Cement is a material that exhibits characteristic properties of setting and hardening when mixed to a paste with water. In the general sense of the word, it can be described as a material with adhesive and cohesive properties, which make it capable of bonding mineral fragments into a compact whole. For construction purposes, the term cement" is restricted to the bonding materials used with stones, sand, bricks, building blocks, etc. The principal constituents of this type of hydraulic cement are the compounds of lime (calcareous cements). These types of cements have the property of setting and hardening under water, therefore they are called hydraulic cements". They include hydraulic limes, pozzolan cements, slag cements, natural cements, portland cements, portland-blast- furnace-slag cements, alumina cements and expansive cements. Non-hydraulic cements, for example lime, do not harden under water because they require air to harden.
