What is Portland cement ?
Portland cement is composed of calcium silicates and aluminate and aluminoferrite. It is obtained by blending predetermined proportions limestone clay and other minerals in small quantities which is pulverized and heated at high temperatures of around 1500 degree centigrade to produce clinker. The clinker is then ground with small quantities of gypsum to produce a fine powder called Ordinary Portland Cement (OPC). When mixed with water ,sand and stone, it combines slowly with water to form a hard mass called concrete.
What is today's price for cement ?
What is PPC?
PPC is manufactured either by inter grinding, Portland Cement clinker, fly ash and gypsum to the required fineness or by blending ground OPC with fine fly ash. Fly ash is a by product in coal based thermal plants.
What does the 53, 43 and 33 grade cement indicate ?
Grades 53, 43 and 33 indicate the compressivestrength of cement in Newtons for one mm2 area i.e., 53 grade means a compressivestrength of 53 N/mm2 attained after a curing period of 28 days. Similarly 43 and 33 grades may be defined.
What are the types of cement ?
There are different types of cement, the most common cements that are supplied are:
Ordinary Portland Cement (OPC)
PPortland Slag Cement (PSC)
Portland Pozzolona Cement. (PPC)
Which cement is preferred for concreting?
The OPC 53 grade cement and PPC cement is usually preferred for concrete purposes.
Which cement is used for plastering?
The OPC 43 grade cement is preferred for plastering.
What are the different grades of cement ?
Mainly there are 4 grades they are the OPC 43 grade, OPC 53 grade and PPC.
What is the minimum order quantity ?
The minimum order quantity is 50 bags.
What is curing period ?
The minimum curing period required is 15 days.
How do i check the quality of cement ?
In the light of the forgoing, it is incur bent on the consumer to do a few basic checks to make sure the quality of the cement is of good quality.
BIS monogram and website are printed on the bag.
Check the year of manufacture of the cement, the first week starts from 1 january of the year.
Check if the company's packing is intact .
Check if the cement is of fresh stock.