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Fly Ash Concrete Admixtures Concrete Decor Concrete Decor

Fly Ash is a coal waste products that acts a lot like cement in the right recipe When you burn massive amounts of pulverized coal one of the waste products is an ash that acts a lot like cement in the right recipe That makes for a great relationship between coal fired power plants and ready mix concrete producers who use nbsp

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Carbonation resistance of fly ash concrete Magazine of Concrete

13 Nov 2015 Based on systematic analysis evaluation and synthesis of a 30 000 strong data matrix generated from 213 studies from 33 countries published since 1968 this paper details the extent of research that has been undertaken and discusses the effect of fly ash FA on the carbonation and carbonation induced nbsp

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Specifying Fly Ash for Use in Concrete

Over the past several decades the use of fly ash in concrete has had a Currently fly ash is used in more than 50 of all ready mixed concrete placed in the

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What is Fly Ash Concrete Construction Magazine

7 Dec 2007 Fly ash is a byproduct from burning pulverized coal in electric power generating plants During combustion mineral impurities in the coal fuse

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Application for Fly Ash Concrete in Pavement

When the ordinary concrete is added to fly ash the slump of concrete is increased and the workability and pumpability are also improved which can meet the

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About Fly Ash Headwaters Resources

FAQs The most common use of fly ash is as a replacement for portland cement used in producing concrete Concrete made with fly ash is stronger and more

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What 39 s the Allowable Fly Ash Limit

15 Mar 2002 What is the highest percentage of fly ash that can be used in ready mixed concrete Is durability the most important issue in determining the

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Researcher tests fly ash for stronger concrete Phys org

15 Mar 2017 Missouri S amp T professor Mohamed ElGawady center and S amp T students are studying making concrete with fly ash instead of Portland cement Credit Joann Stiritz Missouri S amp T Portland cement has been around for more than 250 years as the binding material for concrete mortar and stucco but a Missouri nbsp

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Use of recycled concrete aggregate in fly ash

This paper discusses the effect of both partial and full replacement of natural coarse aggregates by coarse RCA in a fly ash concrete Engineering properties and

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Fly Ash Concrete Abstracts Lamin Art

5060 Metalene Quicksilver 5062 Metalene Astro 5063 Metalene Aurora 5306 Chalk White Concrete 5307 Natural Gray Concrete 5308 Fly Ash Concrete

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Fly Ash Concrete – Fly Ash Suppliers CEMEX USA

Fly ash is the fine ash produced at coal fired power plants that develops cementitious properties when mixed with cement and water Fly ash in concrete is

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Optimizing the Use of Fly Ash in Concrete Portland Cement

Fly ash is used as a supplementary cementitious material SCM in the production of portland cement concrete A supplementary cementitious material when used in conjunction with portland cement contributes to the properties of the hardened concrete through hydraulic or pozzolanic activity or both As such SCM 39 s nbsp

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Fly ash in concrete A literature study of the advantages and

Sigrun Kjær Bremseth Norcem Fly ash in concrete A literature study of the advantages and disadvantages COIN P 4 Operational service life design Sub P 4 4 Alkali aggregate reactions of concrete COIN Project report 18 – 2009 SINTEF Building and Infrastructure nbsp

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Why Use Fly Ash Separation Technologies LLC

Fly ash in the mix replaces Portland Cement producing big savings in concrete materials costs Fly ash is an environmentally friendly solution that meets or exceeds performance specifications Fly ash can contribute to LEED Leadership in Energy and Environmental Design points The Benefits of Using Fly Ash Concrete nbsp

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Uses Benefits and Drawbacks of Fly Ash in Construction

7 Apr 2017 Fly ash can be an expensive replacement for Portland cement in concrete although using it improves strength segregation and ease of pumping concrete The rate of substitution typically specified is 1 to 1 ½ pounds of fly ash to 1 pound of cement Nonetheless the amount of fine aggregate should be nbsp

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00082 the examination of heavy metals leaching from fly ash

17 Feb 2017 Purpose The purpose of this project is to 1 examine the leaching of heavy metals from fly ash concrete by testing water samples for metals

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Optimizing the Use of Fly Ash in Concrete The

Introduction Fly ash is used as a supplementary cementitious material SCM in the production of portland cement concrete A supplementary cementitious

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What is Fly Ash Concrete Construction Magazine Fly Ash

7 Dec 2007 Fly ash is a byproduct from burning pulverized coal in electric power generating plants During combustion mineral impurities in the coal clay feldspar quartz and shale fuse in suspension and float out of the combustion chamber with the exhaust gases As the fused material rises it cools and solidifies nbsp

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Fly Ash Cement Australia

Fly Ash Fly ash is a by product of coal combustion in power stations Although fly ash offers environmental advantages it also improves the overall performance and quality of concrete Flyash affects the plastic properties of concrete by improving workability reducing water demand controlling bleeding and lowering heat nbsp

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Flooring The fly in the concrete Coal fly ash in cement brings

5 May 2010 Fly ash concrete was first used in the U S in the 1920s for dam construction when engineers found that it reduced the total cement requirement Today as more projects seek LEED certification ash is resurfacing as a popular environmentally friendly alternative to Portland cement No longer are we using nbsp

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Using Fly Ash in Concrete National Precast

8 May 2010 All precast concrete producers can now use a group of materials called fly ash to improve the quality and durability of their products Fly ash

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What is fly ash How Fly Ash Concrete Works HowStuffWorks

Because coal power is so widely used fly ash is one of the most abundant industrial byproducts on Earth So instead of putting it in storage ponds that are just waiting to spill it makes sense for companies to put it to good use as a construction material Not only does using fly ash in concrete prevent those heavy metals from nbsp

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Pros amp Cons of Fly Ash In Decorative Concrete

16 Apr 2016 How Fly Ash Can Affect Concrete Color and Performance Fly ash in concrete is often misunderstood Because it is a by product from another industry many

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How Fly Ash Concrete Works HowStuffWorks

Fly ash concrete is considered a green building product Learn about the benefits and potential hazards of fly ash concrete

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Uses Benefits and Drawbacks of Fly Ash in

7 Apr 2017 Fly ash can be an expensive replacement for Portland cement in concrete although using it improves strength segregation and ease of

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High Volume Fly Ash Concrete

The use of concrete containing high volumes of fly ash HVFA has recently gained popularity as a resource efficient durable and sustainable option for a

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Experimental Study on Durability Improvement of Fly Ash

4 May 2014 Abstract In order to improve the durability of fly ash concrete a series of experimental studies are carried out where durability improving

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use of fly ash in concrete Transportation Research Board

USE OF FLY ASH IN CONCRETE RESEARCH SPONSORED BY THE AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS IN COOPERATION WITH THE FEDERAL HIGHWAY ADMINISTRATION TRANSPORTATION RESEARCH BOARD NATIONAL RESEARCH COUNCIL

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Using Fly Ash in Concrete National Precast Concrete Association

8 May 2010 Dr Arnie Rosenberg is a former research director at Grace Construction Products and now a guest researcher at the National Institute for Standards and Testing working on the characterization of fly ash All precast concrete producers can now use a group of materials called fly ash to improve the quality nbsp

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Flooring The fly in the concrete Coal fly ash in

5 May 2010 Fly ash concrete was first used in the U S in the 1920s for dam construction when engineers found that it reduced the total cement requirement

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High Volume Fly Ash Concrete with and without Hydrated

Fly ash changes the microstructure of paste and can increase concrete durability Calcium hydrated lime was added to concrete with 50 of the cement

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Carbonation Curing of Precast Fly Ash Concrete Journal

The feasibility of carbonation curing of precast fly ash concrete is studied If fly ash concrete can be produced by carbonation curing the carbon footprint of the

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Concrete With Fly Ash Vs Concrete Without Concrete amp Paving

But we have recently last couple of months been using a ready mix supplier who does not use fly ash straight cement only or so we are told The non fly ash supplier 39 s concrete definitely gets harder faster But we have been having some problems of late with the finishing characteristics of the mud

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Fly Ash Concrete Admixtures Concrete Decor

Fly Ash is a coal waste products that acts a lot like cement in the right recipe When you burn massive amounts of pulverized coal one of the waste products is

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EPA Finds Coal Fly Ash Safe in Concrete and Gypsum

2 Apr 2014 A new study supporting the encapsulated use of fly ash in building products is a strong clue as to how EPA might shape pending regulation

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What 39 s the Allowable Fly Ash Limit Concrete Producer Concrete

15 Mar 2002 What is the highest percentage of fly ash that can be used in ready mixed concrete Is durability the most important issue in determining the limit

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CEMEX Fly Ash is used to increase the strength of concrete

Fly ash is the fine ash produced at coal fired power plants that develops cementitious properties when mixed with cement and water Widely used in the UK to increase the strength of concrete fly ash is also used to improve workability of fresh concrete and reduce water demand shrinkage and permeability of the finished nbsp

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Specifying Fly Ash for Use in Concrete NRMCA com

Over the past several decades the use of fly ash in concrete has had a successful track record The performance benefits fly ash provides to mechanical and durability properties of concrete have been well researched and documented in actual struc tures Currently fly ash is used in more than 50 of all ready mixed nbsp

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Chapter 3 Fly Ash in Portland Cement Concrete

The use of fly ash in portland cement concrete PCC has many benefits and improves concrete performance in both the fresh and hardened state Fly ash use in

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Fly Ash amp Concrete National Minerals

When mixed with lime calcium hydroxide pozzolans combine to form cementitious compounds Concrete containing fly ash becomes stronger over time more

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Experimental Study on Durability Improvement of Fly Ash Concrete

4 May 2014 In order to improve the durability of fly ash concrete a series of experimental studies are carried out where durability improving admixture is used to reduce drying shrinkage and improve freezing thawing resistance The effects of durability improving admixture air content water binder ratio and fly ash nbsp

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Fly Ash in Concrete Precautionary List

The authors would like to thank our colleagues at Perkins Will for sharing their insights on fly ash in concrete and especially our Steven Danielpour Robin

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Fly ash or Pulverised fuel ash Concrete Society

Fly ash also known as pulverised fuel ash pfa is the ash resulting from the burning of pulverised coal in coal fired electricity power stations The ash is very fine and it is removed from the flue gases by electrostatic precipitators The chemical composition of pfa is somewhat different from Portland cements It will not hydrate nbsp

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Fly ash concrete ppt SlideShare

26 Jul 2014 basic knowledge about performance and characteristics of fly ash based concrete this was my first presentation so hard core civil engineers might consider

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Coal Combustion Residual Beneficial Use Evaluation Fly

Coal fly ash used as a direct substitute for portland cement in concrete hereafter as fly ash concrete and FGD gypsum used as a replacement for mined

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FLY ASH CONCRETE WHAT ARE THE REASONS FOR ADDING

Fly ash concrete has many benefits over regular concrete like improved strength durability more chemical resistant less segregation easier to pump improved

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fly ash Topic American Concrete Institute

Fly ash is a by product from the combustion of pulverized coal and is widely used as an ingredient in hydraulic cement concrete Because it improves many desirable properties of concrete it is introduced either as a separately batched material or as a component of blended cement Fly ash reacts with the hydrating nbsp

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Fly Ash Cement Australia

Although fly ash offers environmental advantages it also improves the overall performance and quality of concrete Flyash affects the plastic properties of

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Fly Ash Concrete Green Education Foundation GEF

Concrete is a well known building material that uses cement Fly ash is a recycled product that can be used as a substitute for some of the cement in concrete

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Fly Ash Concrete Part One The Bad The Ugly Paloform

SCM refers to a group of materials with 39 cement like 39 properties that can be blended into concrete to reduce the amount of cement required to achieve a similar or better product SCM 39 s are most often recycled industrial byproducts with names like fly ash slag and silica fume These are largely the waste products of nbsp

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The permeability of fly ash concrete

In addition the results demonstrate the considerable benefit that can be achieved by the use of fly ash in concrete Even under conditions of poor curing fly ash

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Using Fly Ash in Concrete

8 May 2010 All precast concrete producers can now use a group of materials called fly ash to improve the quality and durability of their products Fly ash

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Fly ash concrete YouTube

7 Apr 2013 Fly ash bricks processing line New low cost ecofriendly technology Solid unwettable warm and cold resistant bricks with perfect compressive

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Fly Ash Concrete Advantages and Disadvantages WFM

31 Aug 2016 Advantages and Disadvantages of using FLY in Ash concrete The biggest advantage of using fly ash is It is highly economical and environment friendly but it has some

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The permeability of fly ash concrete SpringerLink

Oxygen permeability tests were carried out on plain ordinary Portland cement OPC and fly ash concretes at three nominal strength grades Prior to testing the concretes were subjected to a wide range of curing and exposure conditions The results emphasize the importance of adequate curing to achieve concrete of low nbsp

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Fly Ash for Concrete Headwaters

For instance in making concrete cement is mixed with water to create the glue that holds strong aggregates together Fly ash works in tandem with cement in

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The Truth About Fly Ash Green Builder Media

6 Feb 2015 Fly ash is a material commonly used as an additive in lightweight concrete and other building products But we still need to know specifics about the chemicals in the mix of each specific batch

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Flyash Concrete

Flyash is defined in Cement and Concrete Terminology ACI Committee 116 as the finely Thirteen million tons of coal ash are produced in Texas each year

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FLY ASH CONCRETE WHAT ARE THE REASONS FOR ADDING

Fly ash concrete has many benefits over regular concrete like improved strength durability more chemical resistant less segregation easier to pump improved workability and less water needed

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Performance of high volume fly ash concrete in marine environment

This paper presents the durability performance of concrete incorporating high volumes of fly ash exposed to a harsh marine environment for 19 to 24 years Concrete specimens 305 × 305 × 915 mm 1 × 1 × 3 ft were cast using W CM in the range of 0 31 to 0 46 various types of fly ash with replacement levels of 56 or 58 nbsp

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Fly ash lightweight aggregates in high performance

Weight reduction may reduce precast concrete transportation costs as well as provide slender and spacious construction Utilising fly ash to produce quality

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use of Fly Ash in Concrete amp RMC Plants DAT

21 Jun 2011 Use of Fly Ash in Concrete amp RMC Plants Electricity is the lifeline of a civilization Caol based thermal power plants in India account for more

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Fly Ash Concrete Green Education Foundation GEF

Concrete is a well known building material that uses cement The manufacture of cement is a very energy intensive process Worldwide the production of cement is responsible for 5 of carbon dioxide emissions Fly ash is a recycled product that can be used as a substitute for some of the cement in concrete Fly ash is a nbsp

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Fly ash Wikipedia

Asphalt concrete is a composite material consisting of an Both Class F and Class C fly ash can typically be used as

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The Future of Fly Ash Concrete Producer

26 Sep 2016 Several regional shortages of fly ash that occurred during the winter of 2015 16 helped contribute to the rising price of concrete say some

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Coal Combustion Residual Beneficial Use Evaluation Fly Ash EPA

Coal Combustion Residual Beneficial Use Evaluation Fly Ash Concrete and FGD Gypsum Wallboard February 2014 Final United States Environmental Protection Agency Office of Solid Waste and Emergency Response Office of Resource Conservation and Recovery nbsp

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Fly Ash Concrete Applications lt Products lt Cement Lafarge

Fly Ash Concrete Applications lt Products lt Cement Lafarge Lafarge building better cities World leader in building materials with top ranking positions in Cement Aggregates Concrete

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Slag cement with fly ash Slag Cement Association

Learn how combining slag cement with fly ash can positively impact concrete

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Fly Ash for Concrete Headwaters Resources

Fly ash – the most commonly used coal combustion product – is a remarkable material that cost effectively improves the performance of products it is added to For instance in making concrete cement is mixed with water to create the glue that holds strong aggregates together Fly ash works in tandem with cement in the nbsp

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Durability of Concrete with Fly Ash from the Dam

Modern Methods of Experimental and Computational Investigations in Area of Construction II Durability of Concrete with Fly Ash from the Dam Orlík after 55

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Where 39 s the Fly Ash Concrete

12 Nov 2015 Despite an industry wide effort to make concrete more sustainable combined with the recent EPA final ruling declaring fly ash non hazardous

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The Disadvantages of Fly Ash in Concrete Hunker

29 Aug 2011 Fly ash is a byproduct from coal fired power plants that is frequently used as an admixture in concrete to replace a portion of the Portland cement Using fly ash in concrete is

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Biomass fly ash in concrete Mixture proportioning and mechanical

ASTM C 618 prohibits use of biomass fly ashes in concrete This document compares the properties of biomass fly ashes from cofired herbaceous with coal pure wood combustion and blended pure wood fly ash blended with coal fly ash to those of coal fly ash in concrete The results illustrate that with 25 replacement nbsp

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fly ash Topic American Concrete

Fly ash is a by product from the combustion of pulverized coal and is widely used as an ingredient in hydraulic cement concrete Because it improves many

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Fly ash concrete ppt SlideShare

26 Jul 2014 basic knowledge about performance and characteristics of fly ash based concrete this was my first presentation so hard core civil engineers

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KC Fly Ash Concrete Products

Concrete Products Since our fly ash meets the requirements of ASTM C 618 and is certified as Class C self cementing it can be used as a partial replacement

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Why Use Fly Ash Separation Technologies LLC

Fly ash in the mix replaces Portland Cement producing big savings in concrete materials costs Fly ash is an environmentally friendly solution that meets or

Read more
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Optimizing the Use of Fly Ash in Concrete

Introduction Fly ash is used as a supplementary cementitious material SCM in the production of portland cement concrete A supplementary cementitious

Read more
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