Author: Haroon Khalil
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Reinforced Cement Concrete
The cement concrete provided with steel reinforcement for taking on tension, bending, torsion, fatigue, etc., is referred to as Reinforced Cement Concrete (RCC). The steel used in RCC works are: mild steel bars, medium tensile steel bars, hot-rolled deformed bars, cold twisted bars, hard-drawn steel wire fabric or rolled steel. It is used in various…
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Plain Cement Concrete
It is the simplest form of concrete made with cement, sand, pebbles or crushed rock and water. It is used for a variety of works where the structural members are subjected to compression. Simple foundations to mighty dams may be constructed with plain cement concrete.
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TYPES OF CEMENT CONCRETE AND USES
Different types of cement concrete are discussed along with their uses.
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INTRODUCTION
Concrete can be easily prepared by mixing binding material (lime or cement), fine aggregate (sand) and coarse aggregate (crushed stone or brick) and water in the required proportion. The fine aggregates fill the voids of coarse aggregate, and voids of fine aggregate are filled with lime/cement and also the lime/cement reacts with water and binds…
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Chemical Properties
Engineering materials when they come in contact with other substances are likely to react and suffer from chemical deterioration. Some of the chemical properties of importance are corrosion resistance, chemical composition and acidity or alkalinity.
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Magnetic Properties
Magnetic materials are those in which a state of magnetization can be induced. Such materials create a magnetic field in the surrounding space. Some of the important magnetic properties are as follows: Permeability is the ratio of the flux density in a material to the magnetizing force producing that flux density. Coercive force is the…
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Superconductivity
It is the phenomenon of abrupt drop of resistivity of some metals at a temperature called superconductivity transition temperature.
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Dielectric Strength
Dielectric strength is the insulating capacity of a material against high voltage. Hence, a material having high dielectric strength can withstand sufficient high voltage before it will break down and conduct.
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Conductivity
Electrical conductivity is that property of a material due to which the electric current flows easily through the material. It is the reciprocal of electrical resistivity.