A  Cement is a binding substance which is used for construction that sets,hardens, and combines other materials together.

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 It is in the form of fine mineral powder which transforms into a paste like structure that binds and hardens when submerged in water.

 Cement is the most important component of concrete.

 It is used in construction projects worldwide as it is an economical and high-quality construction material.

 It is a basic component which is used in the construction of houses, schools, malls,hospitals, roads and many other construction purposes.

 It is used almost in every situation including electrical and plumbing works.

There are various types of cements depending upon the physical and chemical requirements for specific purpose:

1. Ordinary Portland Cement:

It is the most common type of cement used generally all around the world and is the basic component of concrete, mortar, plaster etc. where a particular type of cement properties are not required.

 It is made by mixing limestone or chalk with clay to form a metal like structure which is then finally crushed into grey coloured cement.

2. Rapid Hardening Cement:

As the name suggests, Rapid Hardening Cement gains high strength during initial days of setup.

 So it is used in concrete where form work is to be removed at an early stage.

It is quite similar to that of Ordinary Portland Cement but finer.

 It is manufactured by combining finely grounded limestone with shale at a high temperature.

 This type of cement is used for Road Pavement Works, Precast Concrete casting for beams, columns etc.

3. Quick Setting Cement:

Quick Setting Cement is used where the work needs to be done quickly so that it can repair products very fast.

 It uses only 10 or 15 minutes to set which is really quick as compared to other cements.

 It is made by adding small quantity of AluminiumSulphate to cement which is then grinded into very fine powder.

 It is done to accelerate the setting time fast.

 It is mainly used in underwater construction, rainy & cold weather conditions and other purposes which require quick strength in short span of time.

4. Coloured Cement:

Coloured Cement is obtained by mixing mineral pigments with ordinary cement.

 Almost 5 to 10 percent colouring pigment is added to the cement but the percentage should not exceed 10 percent as it will effect cement’s strength.

 Various pigments like Cobalt, Chromium Oxide, Ton Oxide and Manganese Oxide are used to give colour to the cement.

 It is widely used in artificial marbles, window slabs, floor finishing, stair treads etc.

5. White Cement:

White Cement has similar properties to that of grey cement, but different in colour.

It is mainly used in white washing purpose for decoration purposes.

 It is prepared using raw materials free from Iron Oxide and is a type of white coloured Ordinary Portland Cement.

 It is used to produce a wide range of clean and bright colours after adding pigments in it.

 White Cement is used as a base coat before painting and also for covering the hairline cracks on concrete surfaces to give smooth finish.

A Cement is a binding substance which is used for construction that sets,hardens, and combines other materials together.

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