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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.Types of Portland cement, PPC, Portland Slag Cement, OPC 33 Grade, 43 Grade & 53 Grade.
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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.
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.
Ground Granulated Blast Furnace Slag • Concrete containing GGBS cement features a higher final strength than concrete created with Portland cement. It’s 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.
Portland PozzolanaCement • 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.
Portland PozzolanaCement • 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.
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.
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.
