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hydraction process of ppc cement

The heat of hydration is the heat generated when water and cement react In the case of OPC hydration process takes less time for completion and it produces more heat than PPC please note if cement produces more heat in less time then it cannot be used for mass concreting as it may generate cracks in the structure

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OPC vs PPC  GharPedia
OPC vs PPC GharPedia

According to ‘’ Author of Concrete Technology Theory and Practice the hydration process of ordinary Portland cement is faster and hence its heat of hydration is more as compared to PPC making it unsuitable for mass concreting

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Difference Between OPC And PPC Cement
Difference Between OPC And PPC Cement

Portland Pozzolana Cement PPC 1 OPC is prepared by a completely automated dry production process by grinding argillaceous calcareous material to gypsum PPC is produced by intergrinding well burned clinkers with gypsum and pozzolana materials such as fly ash or silica power plants 2 In OPC permeability is more than PPC

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Difference Between OPC and PPC Cement  Civil Engineering
Difference Between OPC and PPC Cement Civil Engineering

PPC Portland Pozzolana Cement is a variant of OPC Ordinary Portland Cement These two type of cement differs from each other in terms of component strength heat generation percentage of several components durability grades cost ecofriendly nature application setting time curing period etc

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Which Cement Is Better – PPC Or OPC  Daily Civil
Which Cement Is Better – PPC Or OPC Daily Civil

Aug 22 2017 · PPC means portland pozzolana cement This cement is produced either by uniformly blending portland cement and fine pozzolana or by grinding portland cement clinker and pozzolana The basic properties of this cement are given below 1 This cement has lower heat of hydration and requires normal curing

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Cement PropertiesCompositionManufacturing and
Cement PropertiesCompositionManufacturing and

Hydration of Cement Hydration is the chemical reaction between cement and water and aggregate unless it is mixed with water content to form adhesive property The quantity quality stability and rate of formation of hydration products are important Cement acquires adhesive property only when it is mixed with water The chemical reaction in the hydration process is exothermic

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Portland Pozzolana Cement PPC
Portland Pozzolana Cement PPC

In PPC concrete the cementitious materials cement and fly ash volume is higher This higher quantity of cementitious materials greatly assists in the finishing process The intergrinding of fly ash with clinker and gypsum maximizes the pozzolanic potential of fly ash with more consistent product with good control on variability leading to a better performance of PPC concrete

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What is the Difference Between OPC and PPC Cement
What is the Difference Between OPC and PPC Cement

PPC Cement Pozzolana is a natural or artificial material which contains silica in the reactive form Portland Pozzolana Cement is cement manufactured by combining Pozzolanic materials This cement comprises of OPC clinker gypsum and pozzolanic materials in certain proportions

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PPCOPC Cement  Difference Between Pozzolana
PPCOPC Cement Difference Between Pozzolana

Portland Pozzolana Cement PPC Portland Pozzolana Cement Product of Future is prepared by a fullyautomated dry manufacturing process using state of the art technology under strict quality assurance at all stages of manufacturing with the help of the ROBOTIC POLAB system PPC is manufactured by intergrinding wellburnt OPC Clinker

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Difference Between OPC and PPC Cement  OPC vs PPC Cement
Difference Between OPC and PPC Cement OPC vs PPC Cement

9 Heat of hydration means the formation of heat with the reaction of water cement For OPC less time is required for competion of hydration process So it generates more heat as compared to PPC When cement creates more heats in less time it should not be utilized for mass concreting as it can produce cracks in structures

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Portland Pozzolana Cement PPC  Emami Cement
Portland Pozzolana Cement PPC Emami Cement

Emami PPC ensures twostage hydration process involving clinker and pozzolanic material resulting in denser gel formation Usage of high quality fly ash as a supplementary advantage of high workability high strength with durability and performance advantages for

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Portland Composite Cement PCC  Crown Cement – For
Portland Composite Cement PCC Crown Cement – For

The hydration process of normal cement produces Calcium Silicate Hydrate CHS Calcium Hydroxide CaOH2 Calcium Hydroxide CaOH2 does not contribute to gain strength and it is the weak part of reaction which is not suitable for concrete Since PFA contains higher portion of reactive silica and slag contains alumina it helps to convert CaOH

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Importance of Portland Pozzolana Cement PPC for
Importance of Portland Pozzolana Cement PPC for

1192012 Water Requirements for Hydration • 23 of water is required by weight of cement for chemical reaction with Portland cement compounds bound water • Certain quantity of water is imbibed within gelpores gelwater • Bound water and Gel water compliment each other well • 15 of water by weight of cement is required to fill up gelpores • Total 38 of water by weight of

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What is steps of cement hydration process  Answers
What is steps of cement hydration process Answers

Portland cement is made in a process of hydration but reactions behind this process are only partly understood Cement sets when mixed with water by way of a complex series of chemical reactions

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Difference Between OPC Vs PPC  What is Cement  OPC
Difference Between OPC Vs PPC What is Cement OPC

Uses of Portland Pozzolana Cement PPC This Cement is Flyash based cement recommended for brick masonry plastering tiling and waterproofing work In these works strength isn’t the major criterion PPC has an edge on OPC as PPC has a slower rate of the heat of hydration Thereby PPC is prone to educe shrinkage less cracks better

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Portland Cement Concrete Volume 18Number 2 and
Portland Cement Concrete Volume 18Number 2 and

hydration cement can also be used to control temperature rise but it is rarely available ASTM C 150 Standard Specification for Portland Cement allows two independent approaches to control heat of hydration in cement The first method is to specify chemical requirements For Type II cement an

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Composition of cement
Composition of cement

Composition of cement Introduction Portland cement gets its strength from chemical reactions between the cement and water The process is known as is a complex process that is best understood by first understanding the chemical composition of cement

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fly Ash Percentage in PPC Cements  The Constructor
fly Ash Percentage in PPC Cements The Constructor

Dec 20 2018 · Thb substitution is generally made on a one for one basis either by weight or by volume watercement requirements Modified replacement method The amount of fly ash put into the mix is greater than the amount of cement removed the difference being accommodated by a change in the aggregate proportions Rational Methods – Recommended ACI 2111

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What is Ppc cement  Quora
What is Ppc cement Quora

Apr 17 2017 · Portland Pozzolana Cement PPC The Portland Pozzolana Cement is a kind of Blended Cement which is produced by either inter grinding of OPC clinker along with gypsum and pozzolanic materials in certain proportions or grinding the OPC clinker gyps

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Effect of Fly Ash on Compressive Strength of Portland
Effect of Fly Ash on Compressive Strength of Portland

Portland Pozzolana Cement PPC by fly ash strength increased marginally 19 to 32 at 28 and 56 d respectively It was also observed that up to 30 replacement of PPC by fly ash strength is almost equal to referral concrete after 56 d PPC gained strength after the 56 d curing because of slow hydration process

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Can mass concrete be done using PPC cement in place of
Can mass concrete be done using PPC cement in place of

May 06 2019 · Mass concrete is used for structures like dams and other massive structures For such large structures measure need to be taken to cope with generation of heat from hydration of cement and attendant volume change to minimize cracking They are gen

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What is Setting Time of Cement  GharPedia
What is Setting Time of Cement GharPedia

Initial setting time of cement is the time when the paste cement water starts losing its plasticity This mean that if the initial setting time of cement is 30 minutes the cement mortar or concrete must be placed in position within 30 minutes of adding water If delayed mortar or concrete will lose strength

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PPT – CEMENT PowerPoint presentation  free to download
PPT – CEMENT PowerPoint presentation free to download

Portland cement is a type of hydraulic cement made by heating a limestone and clay mixture in a kiln and pulverizing the materials It is a fine – A free PowerPoint PPT presentation displayed as a Flash slide show on id 4119b1YmUyY

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