Bhavya Portland Pozzolana Cement
Useful for general construction works and particularly suitable for works in aggressive environmentally friendly settings, employed for water holding structures, marine works, mass concreting, for example dams, dykes, retaining walls, foundations, along with sewage pipes. Portland Pozzolana cement utilizes 2 kinds of pozzolanas: a) Fly ash - Protected under IS 1489 (part I) b) Calcined clay -Protected under IS 1489 (part II) PPC by fly ash, as Pozzolana, is more prevalent in the country owing to the easy accessibility of quality fly ash from contemporary coal based thermal power plants.
Portland Pozzolana cement is produced either by inter-grinding Portland cement, gypsum, Clinker and fly ash acquired from thermal power plants, or by closely blending OPC and fly ash. The proportion of fly ash in PPC allowed by IS: 1489 varies from fifteen per cent (minimum) to thirty five percent (maximum). PPC accounts for virtually 47 per cent of the cement manufactured in the country PPC provides enriched work ability, has less segregation as well as bleeding, augmented water-tightness and decreased tendency of lime to leach out. It yields less heat of hydration and offers superior resistance to the attack of aggressive waters containing sulphates and chlorides.
Hence toughness is higher. According to the revised code IS: 456:2000, a least curing period of ten days is prescribed for PPC and for OPC it is seven days in dry and hot climates. For enhanced performance, concrete with PPC calls for continued curing of as a minimum fourteen day
Ordinary Portland cement 53 Grade:
‘A high – strength OPC, employed for high-rise buildings, flyovers, bridges, chimneys as well as pre-stressed concrete buildings where high grade concrete (>- M30) is generally required. Advent of this grade of cement in the nation owes to the enhanced technology at contemporary cement plants, which empowered manufacture of high quality clinker. This grade was presented in the country in 1987 thru BIS and commercial production began from the year 1991. ‘53’ grade cement is a high-strength OPC, which delivers many advantages, wherever concrete for distinctive high strength applications is compulsory. It is accessible on regular basis in the market under diverse brand names. It accounts for around twenty per cent of the total production of cement in the nation.
This grade is most generally used cement across the industry and the company follows the best practice to safeguard that the cement is delivered in adequate quantity for the markets. Also mentioned to as grey cement or OPC, it is of much application in ordinary concrete building. In the making of this kind of cement Limestone, Al. Laterite / Iron Ore, Coal as well as Gypsum components are mandatory. The firm produces the OPC 43 Grade
Quality uniformity is an on-going activity at Bhavya cements. Its priority is always to execute new technologies with in a time frame even at an enormous investment and to be one of the greatest quality cement manufacturing industry in India. Quality was assumed the prime importance even throughout the construction stage of the project itself. The layout preparation, technology absorption, equipment sizing etc. were measured purely based on quality facet of view.
Bhavya Cement Limited has a separate Laboratory with excellence equipment at plant for quality testing of its cement periodically. The company has got IS12269 certificate for 53Grade as well as IS8112 certificate for 43Grade from Bureau of Indian Standards.
Know More about: White Cement