Properties of Cement and Cementing Materials
Use this handbook as a ready reference to the various types of cementing materials along with their chemical compositions and applications.
TABLE OF CONTENTS Properties of Cement and Cementing Materials
Concrete and RCC
Concrete is a building material obtained from a mixture of cement, sand, and gravel or ballast of crushed stone. Water is added in a suitable proportion to get a proper consistency. It sets to a hard solid mass, which is compact, rigid, strong, and durable. Concrete is named after its binding materials and can be categorized into:
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Lime concrete: Lime is the binding material.
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Cement concrete: Cement is the binding material
In general, the mixtures in concrete are 1 part of cement, 3 parts of sand, and 5 parts of gravel. This concrete is not water tight. To make the concrete water proof, the proportion is changed to 1 part cement, I part sand, and 2 parts of gravel. To obtain waterproof concrete, the proportion of cement in the concrete is increased.
Concrete can be used to build foundations, floors, walls of buildings, and roads. It is also used to build roofs, piers for bridges, dams, canal rocks, and waterproof structures.
Curing of Concrete
Curing is the process of carrying out the hydration reaction of the cement until the desired properties are fully developed, by maintaining suitable moisture content and temperature in concrete. Within 2-3 days, concrete develops good strength and hardness due to the hydration reaction. During this hydration process, a large amount of heat is released. To reduce the temperature and slow down the hydration reaction, cold water is circulated through the pipes. Otherwise, the cement might develop cracks.
RCC
RCC is the modified form...
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