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ppc blended cement manufacturers bis standard ppc

jaypee group | businesses | cement-cement brands

jaypee group | businesses | cement-cement brands

Jaypee produces a wide variety of cements, which are specifically designed to cater to the customers requirements for different types of cements in each of its markets. All the brands, which the Company produces, are so evolved in their characteristics and properties that they will surpass BIS Standards. For each brand, the relevant BIS standards are mentioned in enclosed table along with a comparison with the BIS requirement.

The state-of-the-art cement plants operated by the Jaypee Group are equipped with the most modern technology from the globally leading technology providers. Extensive Instrumentation & fully automatic and computerized process control system, custom designed Quality Control software like QSO Expert and CADES in the Mines, Cross Belt Expert Analyser using the Prompt Gamma Neutron Activation Analysis - for the first time in India, X-Ray Fluorescence and X-Ray Diffraction analysers and optical microscope, enable production of cement of the highest quality consistently on a sustained basis. Jaypee Rewa Plant Quality control laboratory is accredited laboratory from National Accreditation Board for Calibration & Testing Laboratories, for chemical and mechanical Cement testing.

All brands are marketed in attractive HDPE bags, containing 50 Kgs of quality cement from Jaypee. Bags are identified with a conspicuous Jaypee Logo, which also over the years has come to be regarded as a Hallmark of quality.

Jaypee Cement (PPC) is a market leader among all blended/composite cements in the markets of U.P, Bihar, M.P., Punjab, Haryana, Delhi & Nepal. Its unique design and blend, with high strength clinker and superior quality flyash has made it the popular cement for construction of large number of strong and durable structures in these states.

Fine particles of Jaypee Cement (PPC) when mixed with water readily form a smooth paste, which results in a smooth surface. When used with sand and aggregates it yields a very strong & durable concrete.

Jaypee Cement (PPC) helps to produce more cohesive concrete and mortar which is also less prone to segregation and bleeding. Due to this quality, Jaypee Cement (PPC) is suitable for any type of structural application. *(Curing is done as per specified norms)

Use of superior quality flyash in Jaypee Cement (PPC) not only reduces the incidence of lime leaching from concrete and mortar but also results in refined pore structure, reduced permeability and long term strength gain. These attributes make the construction strong, compact, impermeable and resistant to chemical attacks.

Jaypee Cement (PPC) is being used for a number of applications like housing, commercial complexes, roads, wells, canals, dams etc. which establishes Jaypee Cement (PPC) as the preferred choice of the discerning customer. It is particularly well suited for the tropical climatic conditions of India.

Where x is declared % of pozzolana = 26.0 TO28.0 Cement tested at temp.27 2C The setting time has been optimized to give comfortable time for application. *N.C.(Normal Concrete Cement ) *P.C.(Prestressed Concrete Cement) Jaypee Cement (PPC) surpasses the requirements laid down by Bureau of Indian Standards (BIS) for flyash based PPC cement in IS:1489 Part (I):1991.

Jaypee Cement (PPC) helps to produce better concrete & compressive strength keeps on growing with time. Jaypee Cement (PPC) promotes workability in fresh concrete even with less water and hence yields high strength concrete of low permeability, less bleeding, better pump-ability and superior finish. Hardened concrete made with Jaypee Cement (PPC) benefits from long term gain in compressive strength and related properties like low creep & shrinkage etc.

Furthermore, the concrete is very durable and effectively resists aggressive attack of sulphate and chloride ions. It is also resistant to Alkali aggregate reaction. The concrete is not subjected to attack by acid rain due to presence of green house gases (GHGs) in higher concentrations in atmosphere.

Jaypee Cement (OPC-43 Grade) is produced from enriched limestone most suited to make high quality clinker, which on grinding gives a cement with characteristics surpassing those specified in IS: 8112 1989. (Please refer Table-2).

Jaypee Cement (OPC-43 Grade), has emerged as the top choice of Engineers and Engineering Companies engaged in construction of mega projects such as National Highways, Bridges, Transmission lines, power plants, Industrial and Residential structures.

OPC-53 Grade has been the mainstay for fast paced construction of high strength, heavy load bearing Structures viz., Bridges, prestressed elements, penstocks, precast elements etc. requiring very high strength to negotiate the heavy static & dynamic loads.

Jaypee Cement (OPC-53 Grade), because of its fine nature, good particle size distribution, optimal phase composition, imparts the properties of higher strength to the structures. The Chemical & Physical properties of Jaypee Cement (OPC-53 Grade) surpasses the properties of OPC 53 grade as defined in IS: 12269 1987. (Please Refer Table 3)

One of the very few cement manufacturers having the potential to manufacture this special grade of super fine cement which due to its enhanced quality and performance parameters has been approved by the RDSO of Indian Railways for manufacture of RAILWAY SLEEPERS.

Jaypee Cement (OPC-53 S Grade) is also used in heavily loaded or pre stressed structures, which are subjected to high dynamic loads due to rapidly moving volumes, be it a train passing on the railway sleepers or a great volume of water moving at high speed to generate electricity in a penstock. The characteristics of Jaypee Cement (OPC-53 S Grade) vis a vis the prescribed BIS Standards IS: 12269 1987 can be seen in Table-4.

Cement tested at temp.27 2C The above cement complies with IS: 12269 -1987 for 53 Grade Ordinary Portland Cement. *N.C.(Normal Concrete Cement) *P.C.(Prestressed Concrete Cement) Despatched on - 12/03/06 Week No : 11/2006

One of the very few cement manufacturers having the capability to manufacture this special grade of cement which due to its enhanced quality and performance parameters has been approved by the RDSO and is preferred by Indian Railways for manufacture of SLEEPERS.

Jaypee OPC-53 S Grade is also used in heavily loaded or prestressed structures, which are subjected to high dynamic loads due to rapidly moving volumes, be it a train passing on the railway sleepers or a great volume of water moving at high speed to generate electricity in a Dam. The characteristics of OPC-53 S Grade cement with the prescribed BIS Standards IS: 12269 1987 can be seen in the table below.

Cement tested at temp.27 2C The above cement complies with IRS: T-40-1985 (53S) of Indian Railway Standard specification for cement used in concrete sleeper. *N.C.(Normal Concrete Cement) *P.C.(Prestressed Concrete Cement)

portland pozzolana cement (ppc): manufacturing and properties - civil sir

portland pozzolana cement (ppc): manufacturing and properties - civil sir

Portland pozzolana cement (PPC): manufacturing, properties and uses, hi guys in this article we know about PPC cement, PPC cement full form, PPC cement grade, properties & uses of PPC cement and advantage and disadvantage of Portland pozzolana cement.

As we know PPC cement full form is Portland pozzolana cement, the name Portland & pozzolana are both historical term used before naming cement. The Portland name is historical place islet of portland in Dorset of England which have large amount of natural cement as Portland stone which are used to formed Portland cement,its beginning in the middle of the 18th century in Britain.

Pozzolana was first found at Puteoli near Naples where huge amount of bed of pozzolana found in Italy, natural pozzolana is composed mainly of a fine chocolate-red volcanic earth. artificial pozzolana has been developed that combine fly ash and water quenched boiler slag.

Portland Pozzolana Cement is becoming a most popular type of cement used in construction line like building construction, formation of multistorey building, Super structure, Bridge, Dams, Industrial & commercial building.

PPC is made from natural pozzolanic material. Natural Pozzolanic material history extended up to roman time. Portland Pozzolana Cement or ppc cement is manufactured by grinding the OPC clinker with 10 to 25 percent of the pozzolanic material mix with water. As per the recent time in standards of manufacturing, it is about 35% of pozzolanic material

A artificial Pozzolanic ingredient in PPC cement is fly ash essential material includes the siliceous or aluminous material which itself does not possess any cementitious and binding properties, it is finely divided form and in the presence of water react with calcium hydroxide liberated in the hydration process which is performed at normal temperature to form compounds Possessing cement properties.

In the manufacturing process of PPC cement, the main ingredients are calcined clay, or fly ash is a wastes material, generated in the thermal power station when powdered coal is used as a fuel. This material is then collected in electrostatic precipitators. In the United Kingdom, it is known as pulverized fuel ash so fly ash and pulverized ash both are same.

The material produced may also called as calcium silicates produce considerable quantities of calcium hydroxide, which is by and large a useless material from the point of view of strength or durability. It is just a waste material which could be converted into cementitious product; it considerably improves quality of concrete.

Why is better to use PPC Cement in concrete? Generally when PCC cement is used in formation of concrete produce lesser heat of hydration and offer greater resistance to the attack of aggressive waters than ordinary Portland cement. Moreover, it reduces the leaching of calcium hydroxide when used in hydraulic structures.

However, it is fact that addition of Pozzolana does not contribute to the much strength at biggining time. The strength property of PPC are little higher to that ordinary Portland cement. Concrete setting time is more in PPC cement than ordinary Portland cement.

In case, if portland pozzolana cement is manufactured by using the right type of reactive pozzolanic material, the Portland pozzolanic cement will similar to ordinary Portland cement except for the rate of gaining strength early up to 7 days.

It will affect to OPC only when bad quality of pozzolanic materials are used, which are not of the reactive type and which do not satisfy the specifications limit for pozzolanic materials, are used the cement would be of doubtful quality.

1) setting time of PPC cement is more than ordinary Portland cement,it again little strength in beginning of construction but final strength is much high, its Initial setting time is 1/2 an hour and final setting time is about 10 an hour.

5) important properties of PPC cement is that it make a resistance against aggressive attack of harmful chemical like carbonate,acid alkalies which are dissolved in water and also prevent from adverse climatic condition to external wall.

Hydroxide in one-year-old OPC paste was found to be only 8.4 percent calcium hydroxide in a and leaching also a certain reduction in calcium hydroxide may have taken place. After considering the effect the calcium hydroxide should have been 14%.

2) In PPC manufacturing a soluble calcium hydroxide is converted into insoluble cementitious products which result in improvement of permeability. Hence it offers, abounds durability characteristics, particularly in hydraulic structures and marine construction.

2) PPC has lower the alkalinity contain which reduces the resistance to corrosion of steel reinforcement. But on the other hand, PPC significantly improves the permeability of concrete, increases the resistance to corrosion of reinforcement.

In many area of world the PPC is graded similarly to OPC depending upon their compressive strength, at 28 days. As per India Standard the PPC cement strength is considered equivalent to 53 grade OPC cement.

Many cement brands recommended using BIS for grading of PPC just like grading of OPC. They also suggested using a higher amount of fly ash content from 25% to 35%. Recently, the Unites Kingdom has increased the fly ash content in PPC in BIS from 10-25% to 15-35%.

Portland Pozzolana cement can be utilized where OPC is used except where high early strength is of special requirement. As PPC use demands the moisture for sustained pozzolanic activity, a little longer curing is desirable. Use of PPC would be particularly suitable for following situations:

ppc | heidelbergcement india limited

ppc | heidelbergcement india limited

PPC or Portland Pozzolana Cement is a kind of Blended Cement which is produced by grinding the Portland clinker with gypsum and pozzolanic materials in measured proportions or by blending Ordinary Portland Cement (OPC), with Pozzolanic materials in certain proportions.

Pozzolana is any natural or artificial material containing silica in a reactive form. The pozzolana is in a finely divided state to allowsilica to combine with calcium hydroxide (liberated by the hydrating Portland cement) in the presence of water forming stable Calcium Silicates Hydrate that have the cementitious properties. The pozzolanic materials commonly used are

ppc cement manufacturing process - portland pozzolana cement plant | agico

ppc cement manufacturing process - portland pozzolana cement plant | agico

What is Portland pozzolana cement? The hydraulic cementitious materials made of Portland cement clinker, pozzolanic material, and a proper amount of gypsum are all called Portland pozzolana cement (PPC cement). It is a kind of blended cement which is manufactured by mixing and fine-grinding silicate cement clinker, pozzolanic material, and gypsum.

Pozzolanic materials contain active silica and aluminum and usually do not have any cementitious properties. But when they are mixed with water and lime at ambient temperatures, they will react with calcium hydroxide to form compounds possessing cementitious properties. The commonly used pozzolanic materials can be classified as natural or artificial:

Portland pozzolana cement shall be manufactured by mixing and inter-grinding Portland cement clinker, pozzolanic materials, and gypsum. The manufacturing process is approximately the same as ordinary Portland cement, which can be divided into four processes: raw material crushing, raw material grinding, clinker calcination, and cement grinding.

Limestone and clay are the main material for Portland cement production. After mining, these raw material stones are unloaded by trucks and sent into crushers for reducing particle size. Then they are piled in a pre-homogenization yard waiting for processing.

Fine particle size raw materials are fed into the raw mill in a desired proportion for further particle size reduction, then they are stored in silos, meanwhile completing the material blending and homogenization process.

Cement raw meals are sent into a cement rotary kiln to be calcined under a high temperature. After several chemical reactions are produced, some spherical gray particles, what we called clinker, are formed. In cement cooler, these hot clinkers will be cooled to a normal temperature.

After cooling, the clinker is mixed with pozzolanic materials and gypsum in a required proportion and then sent to the cement mill for final grinding. The cement powder is usually stored in cement silos, then bagged and stored in the warehouse.

In the Portland pozzolana cement manufacturing process, we need a variety of cement equipment. AGICO, as a cement plant supplier in China, offers different cement solutions and cement manufacturing equipment.

Portland pozzolana cement, portland slag cement, and portland fly ash cement are all made by adding active admixture and an appropriate amount of gypsum based on Portland cement clinker. They are similar in nature and scope of application, so they can be used interchangeably in most cases. However, the physical properties and characteristics of the active admixture are different, which makes the three types of cement have their unique characteristics.

Slow setting and hardening, low early strength, and high late strength. The clinker content of the three kinds of cement is small, and the secondary hydration reaction is slow, while their later strength exceeds the ordinary Portland cement of the same grade.

Sensitive to temperature and humidity, suitable for high-temperature curing. When the three types of cement are cured at high temperatures, the hydration of the active mixture and clinker will be accelerated, and the early strength is improved without affecting the development of the later strength. Ordinary Portland cement, although the use of high-temperature curing can improve the early strength, the development of later strength will be affected.

Good corrosion resistance. They have good corrosion resistance and are suitable for the environment containing sulfate, magnesium salt, soft water, etc. However, when the corrosion resistance requirements are high, it is not suitable for the application.

Poor frost resistance. Slag and fly ash are easy to bleed to form connected pores. As to pozzolana, it has a large water storage capacity, which will increase the internal pore number. Therefore, the frost resistance of the three types of cement is poor.

Composite Portland cement: the early strength of composite Portland cement is higher than slag (or pozzolana, fly ash) cement, closes to ordinary Portland cement. It has low hydration heat, good corrosion resistance, impermeability, and frost resistance.

AGICO Group is an integrative enterprise group. It is a Chinese company that specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance.

portland cement by acc limited | cement manufacturer

portland cement by acc limited | cement manufacturer

ACC Cement is the most commonly used cement in all constructions including plain and reinforced cement concrete, brick and stone masonry, floors and plastering. It is also used in the finishing of all types of buildings, bridges, culverts, roads, water retaining structures, etc.

This is a special blended cement, produced by inter-grinding higher strength Ordinary Portland Cement clinker with high quality processed fly ash - based on norms set by the company's R&D division. This unique, value-added product has hydraulic binding properties not found in ordinary cements.

In concrete made from ordinary cements, moisture reacts with calcium hydroxide in concrete to form calcium bicarbonate, which leaches out of the concrete, leaving pores that reduce its strength. ACC Fly-ash based PPC has ingredients which react with calcium hydroxide to form CSH gel, to provide additional strength, which actually makes the concrete grow in strength over the years. It also produces less heat of hydration and offers greater resistance to the attack of aggressive waters than normal Portland cement.

ACC Fly-ash based PPC easily replaces OPC and provides additional advantages for practically all types of construction applications - commercial, residential, bungalows, complexes, foundation, columns, beams, slabs and RCC jobs. It is especially recommended for mass concreting work, and where soil conditions and the prevailing environment take heavy toll of constructions made with ordinary cements.

ACC Fly-ash based PPC is made by intergrinding high strength clinker with specially processed flyash. This imparts a greater degree of fineness to ACC Fly-ash based PPC cement, improved workability properties while mixing, and makes concrete more corrosion resistant and impermeable. All of this makes for better long-term strength and improved corrosion resistance and therefore, greater life for your constructions. ACC Fly-ash based PPC is an eco-friendly cement

Due to its inherent characteristics, ACC Fly-ash based PPC makes very corrosion resistant concrete that is superior to concrete made with OPC. It is more impermeable to oxygen, CO2, chlorides, etc. Leaching of alkalis is reduced and the alkaline environment around steel is maintained.

This is a slag-based blended cement that imparts strength and durability to all structures. It is manufactured by blending and inter-grinding OPC clinker and granulated slag in suitable proportions as per our norms of consistent quality. PSC has many superior performance characteristics which give it certain extra advantages when compared to Ordinary Portland Cement

All these factors make for a strong, durable, and longer lasting construction. ACC PSC benefits the structure, protects the environment by reducing CO2 emissions and helps conserve energy. Which is why it is often referred to as an eco-friendly cement.

The Federation International de la Precontrainte (FIP) Guide to Good Practice for "concrete constructions in hot weather," states that if concrete is likely to be exposed to an environment of sulphate-bearing water or soil, it is preferable to use a proven type of blended cement containing ground granulated blastfurnace slag. Concrete made with ACC PSC has a higher density than concrete made with OPC, and hence it improves the durability of concrete structures.

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