Portland Cement | ConstroBazaar (1)

1
Portland Cement
2

• Portland cement is the most commonly used grade
  of cement around the world as a basic ingredient
  of concrete, mortar, stucco and grout. It was
  developed from different kinds of lime in England
  in the mid-nineteenth century. 
• It is a fine powder, made by heating limestone
  and clay minerals in an oven to create clinker,
  grinding the clinker, and adding 2-3 of mineral.
  Many forms of Portland cement are available in
  the market. The most commonly used cement,
  referred to as standard hydraulic cement (OPC),
  is gray in color, however, white Portland cement
  is also used.

3
Ground Granulated Blast Furnace Slag

• In contrast to the stony grey of concrete created
  with Portland cement, the near-white color of
  GGBS cement permit architects to realize a
  lighter color for the exposed fair-faced concrete
  finish, at no additional price.
• To attain a lighter color finish, GGBS is
  typically specific at between 50th to 70th
  replacement levels, though levels as high as 85th
  are often used.

4
Ground Granulated Blast Furnace Slag

• Concrete containing GGBS cement features a higher
  final strength than concrete created with
  Portland cement. Its a higher proportion of the
  strength-enhancing metallic element salt hydrates
  (CSH) than concrete created with cement only, and
  a less content of free lime, that does not
  contribute to concrete strength.
• Concrete created with GGBS continues to achieve
  strength over time and has been shown to double
  its 28-day strength over periods of ten to twelve
  years.

5
Portland Pozzolana Cement

• Portland Pozzolana Cement is commonly referred as
  PPC.
• It is manufactured by combining Pozzolanic
  materials.
• This cement includes OPC clinker, mineral and
  pozzolanic materials in required proportion.

6
Portland Pozzolana Cement

• The strength of PPC is better than OPC in long
  term.
• The hydration process is slower than OPC
  resulting in low heat of hydration.
• Therefore, it is suitable for mass concreting.
  PPC is available in any specific grades.

7
Ordinary Portland Cement

• OPC cement is factory-made by grinding a mix of
  limestone and different raw materials like
  argillaceous, calcareous, and mineral to a
  powder.
• This cement is available in three types of
  grades, such as OPC 33 grade, OPC 43 grade and
  OPC 53 grade. OPC is the most ordinarily used
  cement around the world. It has higher strength
  than PPC in the initial stage.

8
Portland Slag Cement

• Portland Slag Cement, commonly known as PSC, is
  blended cement. Slag is, essentially, a
  non-metallic product comprising of more than 90
  glass with silicates and alumino-silicates of
  lime.
• It has ultimate compressive strength, excellent
  resistance to Chloride Sulphate attacks, and
  better compatibility with all types of
  admixtures. PSC can be used for Dams and other
  mass concrete works, all types of residential,
  commercial and industrial projects, Pre-cast
  concrete products.

9
Thank You !!!