effect of fly ash on cement ppt slides

effect of fly ash on cement ppt slides

Fly Ash Concrete PPT - SlideShare

Oct 31, 2016  INTRODUCTION Fly ash concrete is an eco-friendly construction material in which fly ash replaces a part of Portland cement. But IS:456 – 2000 and ACI:318 allows replacement of OPC by Fly ash up to 35% only as binding material. High volume fly ash concrete is a concrete where a replacement of about 35% or more of cement is made with the usage ...

Seminar report on flyash concrete - SlideShare

Jan 24, 2016  7 2. Portland cement is rich in lime (CaO) while fly ash is low. Fly ash is high in reactive silicates while Portland cement has smaller amounts EFFECT OF FLY ASH ON FRESH CONCRETE: Workability Fly ash improves the workability of the concrete. Workability refers to the ease of handling, placing and finishing of fresh or “plastic” concrete.

FLY ASH MATERIALS - SlideShare

May 13, 2014  CONCLUSION Cube compression test Decease with increase in % replacement of fly ash 9.24% increase at 5% replacement at 28 days 15.07% increase at 10% replacement at 28 days So, from the observed test results, replacement of cement by fly ash in concrete

Uses Of Fly Ash In Concrete Construction PPT Xpowerpoint

View and Download PowerPoint Presentations on Uses Of Fly Ash In Concrete Construction PPT. Find PowerPoint Presentations and Slides using the power of XPowerPoint, find free presentations research about Uses Of Fly Ash In Concrete Construction PPT

On Fly Ash by Sumit Suman Fly Ash Concrete

ppt on fly ash by Sumit Suman.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online.

Flyash Replacement of Cement in Concrete Fly Ash Concrete

Effect of quality of fly ash on concrete The important characteristics, which affect the performance of fly ash in concrete, are Loss on Ignition (LOI) Fineness Calcium (CaO) content Loss on Ignition (LOI) Refer to 10.1 for making your slide Fineness Refer to 10.2 for making your slide Calcium (CaO) content Refer to 10.3 for making your slide

Chemistry inveatigatory project on setting of cement

Oct 13, 2016  Lime, pit sand, river sand, cement, fly ash, rice husk 6. Introduction: Cement is essentially a finely ground mixture of calcium silicates (3Cao.SiO2) and aluminates (3Cao.Al2O3) which sets to a hard mass treated with water. This property makes cement capable of joining rigid masses like bricks, stones, tiles etc. into coherent structures.

Supplementary Cementitious Materials - America's Cement ...

Concrete mixtures containing fly ash generally require 1 to 10% less water for a given slump than concrete containing only portland cement. However, fly ashes with a high percentage of coarse particles are less efficient in reducing the water demand and in extreme cases may increase the amount of water required up to 5%.

Flyash Replacement of Cement in Concrete Fly Ash Concrete

Effect of quality of fly ash on concrete The important characteristics, which affect the performance of fly ash in concrete, are Loss on Ignition (LOI) Fineness Calcium (CaO) content Loss on Ignition (LOI) Refer to 10.1 for making your slide Fineness Refer to 10.2 for making your slide Calcium (CaO) content Refer to 10.3 for making your slide

Effect of Cement Replacement by Silica Fume and Fly Ash ...

Feb 15, 2021  Explore Effect of Cement Replacement by Silica Fume and Fly Ash with Free Download of Seminar Report and PPT in PDF and DOC Format. Also Explore the Seminar Topics Paper on Effect of Cement Replacement by Silica Fume and Fly Ash with Abstract or Synopsis, Documentation on Advantages and Disadvantages, Base Paper Presentation Slides for IEEE Final

Class C and Class F Fly Ash: Comparisons, Applications ...

Acknowledgements NCHRP Report 749 Methods for Evaluating Fly Ash for Use in Highway Concrete Larry Sutter 1, Doug Hooton 2, Scott Schlorholtz 3 Zeyad Ahmed 1, Melanie Keuber Watkins , Dave Hand 1,Andre de Groot 2 1 Michigan Technological University 2 University of Toronto 3

(PDF) Effect of Fly Ash as Partial Replacement of Cement ...

The cement concrete and pozzolanic cement concrete specimens containing fly-ash or silica fume were first cured in water for a periods of 1,3,7,28,90 and 180 days then exposed to high temperature ...

Uses, Benefits, and Drawbacks of Fly Ash in Construction

Mar 02, 2021  Benefits . Fly ash can be a cost-effective substitute for Portland cement in many markets. Fly ash is also recognized as an environmentally friendly material because it is a byproduct and has low embodied energy, the measure of how much energy is consumed in producing and shipping a building material.By contrast, Portland cement has a very high embodied energy because its production

CEMENT and CONCRETE TECHNOLOGY

effect, making the concrete easier to finish, and produce better cement hydration. By reducing the amount of water required, cement amounts can be reduced because concrete strength is directly related to the water/cement ratio. Definition of Mineral Admixtures Mineral admixtures include fly ash, hydrated lime, silica fume and ground blast ...

Fly Ash Handling: Challenges and Solutions Power Engineering

Feb 01, 2012  Fly ash is a general name used for the residual products of combustion that rise with flue gases. More than 100 million tons of fly ash is produced in the United States every year; most coming ...

PPT – Soil Stabilization PowerPoint presentation free to ...

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience.

COAL ASH PROPERTIES IMPACT ON CLINKER QUALITY -

The impact of using high CaO flyash (ie Class C ash) in cement is likely to improve the strength development of the PPC due in part to the pozzolanic reaction, but more so since high CaO ashes contain increased quantities of calcium silicates and aluminates, (identical to those found in clinker), which give cement made with these ashes a degree ...

PPT – POZZOLANS (Supplementary Cementitious Materials ...

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience.

CONCRETE Optimizing the Use of Fly Ash in Concrete

the fly ash will be in terms of reducing the heat of hydration (Thomas 1995), controlling expansion due to alkali-silica reaction (Shehata 2000), and providing resistance to sulfate attack (Shashiprakash 2002). These issues are addressed in sections Effect of Fly Ash on

Fly Ash - Properties, Types, Mechanism and Uses

🕑 Reading time: 1 minuteFly ash is a heterogeneous by-product material produced in the combustion process of coal used in power stations. It is a fine grey coloured powder having spherical glassy particles that rise with the flue gases. As fly ash contains pozzolanic materials components which reach with lime to form cementatious materials. Thus []

CONCRETE MATERIALS AND TESTING

fly ash or GGBFS. See 5-694.116 for Fly Ash Certification. In manufacturing blended cement, the alkali content of the clinker shall not exceed the company’s quality control criteria used for regular Type I cement. If the fly ash or GGBFS is blended or inter-ground with the cement, the cement shall comply with the Specifications and the ...

CONCRETE Optimizing the Use of Fly Ash in Concrete

the fly ash will be in terms of reducing the heat of hydration (Thomas 1995), controlling expansion due to alkali-silica reaction (Shehata 2000), and providing resistance to sulfate attack (Shashiprakash 2002). These issues are addressed in sections Effect of Fly Ash on

Class C and Class F Fly Ash: Comparisons, Applications ...

Acknowledgements NCHRP Report 749 Methods for Evaluating Fly Ash for Use in Highway Concrete Larry Sutter 1, Doug Hooton 2, Scott Schlorholtz 3 Zeyad Ahmed 1, Melanie Keuber Watkins , Dave Hand 1,Andre de Groot 2 1 Michigan Technological University 2 University of Toronto 3

PPT – POZZOLANS (Supplementary Cementitious Materials ...

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience.

Fly Ash Handling: Challenges and Solutions Power Engineering

Feb 01, 2012  Fly ash is a general name used for the residual products of combustion that rise with flue gases. More than 100 million tons of fly ash is produced in the United States every year; most coming ...

High Performance Bricks from Fly Ash

for the efficient utilisation of the vast quantities of fly ash. Conservative attitudes are among the factors that limited the use of fly ash in concrete to generally a maximum of 25% replacement of Portland cement. This conservatism can be understood in the context of concrete where the ash is mixed raw, and the effects . 1

CEMENT and CONCRETE TECHNOLOGY

effect, making the concrete easier to finish, and produce better cement hydration. By reducing the amount of water required, cement amounts can be reduced because concrete strength is directly related to the water/cement ratio. Definition of Mineral Admixtures Mineral admixtures include fly ash, hydrated lime, silica fume and ground blast ...

CONCRETE MATERIALS AND TESTING

fly ash or GGBFS. See 5-694.116 for Fly Ash Certification. In manufacturing blended cement, the alkali content of the clinker shall not exceed the company’s quality control criteria used for regular Type I cement. If the fly ash or GGBFS is blended or inter-ground with the cement, the cement shall comply with the Specifications and the ...

Fly Ash - Properties, Types, Mechanism and Uses

🕑 Reading time: 1 minuteFly ash is a heterogeneous by-product material produced in the combustion process of coal used in power stations. It is a fine grey coloured powder having spherical glassy particles that rise with the flue gases. As fly ash contains pozzolanic materials components which reach with lime to form cementatious materials. Thus []

(PDF) Soil stabilisation using cement

This review paper presents the results of experimental researches on soil stabilization by using the most chemical admixtures, which involved cement, lime and fly ash, and their effectiveness in ...

COAL ASH PROPERTIES IMPACT ON CLINKER QUALITY -

The impact of using high CaO flyash (ie Class C ash) in cement is likely to improve the strength development of the PPC due in part to the pozzolanic reaction, but more so since high CaO ashes contain increased quantities of calcium silicates and aluminates, (identical to those found in clinker), which give cement made with these ashes a degree ...

Effect of fineness and dosage of fly ash on selected ...

Effect of fineness and dosage of fly ash on selected properties of mortars Pricing Members Price ... with various cement replacement proportions with different fly ashes, are compared with those of cement only mix having identical mix compositions. ... you will have the opportunity to view recorded presentations (video and audio) at your own ...

GGBS And Fly Ash Effects on Compressive Strength by ...

On optimum level of GGBS and Fly Ash was assessed with varied percentage from 0 to 30% for different curing days. Replaced concrete were tested with the slump, compaction factor, Vee-bee and compressive strength. Cement to water ratio was maintained at 0.47 for all mixes. The compressive strength tests were conducted for 3, 7, 14 and 28 days of ...

(PDF) A review paper on self healing concrete

cement, Fly ash, Fine and Coarse ... bacteria which are used in the bio-concrete and their effect on the strength parameters of the concrete like compressive strength and water absorption under ...

Coal Bottom Ash for Portland Cement Production

Jul 30, 2017  The specific surface Blaine of the cement was 4,050 m 2 /kg; fineness of the collected coal fly ash was 3,976 m 2 /kg. The coal bottom ash was ground in a ball mill up to a Blaine fineness of 3,463 m 2 /kg, similar to that of the Portland cement (5–8% residue on 45 μm sieve).. Several coal fly and ground coal bottom ashes were mixed in the laboratory using a powder mixer.