Fly Ash
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  • Fly ash is the finely divided mineral residue resulting from the combustion of powdered coal in electric generating plants. It is also called pulverized fuel ash. Fly ash consists of inorganic, incombustible matter present in the coal that has been fused during combustion into a glassy, amorphous structure.
  • Fly ash is used as a component in the production of flowable fill (also called controlled low strength material, or CLSM), which is used as self-leveling, self-compacting backfill material in lieu of compacted earth or granular fill. Flowable fill includes mixtures of Portland cement and filler material and can contain mineral admixtures, such as fly ash.
  • The color of fly ash can vary from tan to gray to black, depending on the amount of unburned carbon in the ash. The lighter the color, the lower the carbon content. Lignite or subbituminous fly ashes are usually light tan to buff in color, indicating relatively low amounts of carbon as well as the presence of some lime or calcium.
  • The fly ash produced from the burning of pulverized coal in a coal-fired boiler is a fine-grained, powdery particulate material that is carried off in the flue gas and usually collected from the flue gas by means of electrostatic precipitators, baghouses, or mechanical collection devices such as cyclones.
  • Fly ash improves corrosion protection. By decreasing concrete permeability, fly ash can reduce the rate of ingress of water and corrosive
    chemicals; therefore protecting steel reinforcements from corrosion.
  • Fly ash fineness and spherical shape make even of them an affective filler in improving the rheologycal behaviour of fresh cementitious mixture, increasing its workability (slump) and pumpability, while reducing the risk of bleeding and component segregation during moulding.
  • Dry ash is collected from different rows of electrostatic precipitators. It is available in two different grades of fineness in silos for use as resource material by different users. Conditioned fly ash is also available in ash mound for use in land fills and ash building products.
  • Fly ash micronisation, for the obtainment of a material entirely smaller than 10 microns, can be operated by grinding it or by its aerodynamic classification. On the contrary, the sieving separation is no more possible at these diameters on an industrial scale. Grinding can be made adopting dry or wet milling technologies.
  • India at present produces around 120 Million Tonnes of Ash per annum. The power requirements of the country is rapidly increasing with increase in growth of the industrial sectors.
  • The annual demand of fly ash for production of PPC is currently estimated to be 3 MT including that of neighbouring states, and is likely to increase in the near future.
  • The western United States flyash market is limited by the distance to market, a result of relatively few large population centers  and power plants that are often located near coal sources, rather than near large cities.
  • Utilization of fly ash in Israel took a while and most of it is related to the cement and the concrete industry and has much to do, of
    course, with the local conditions, technical and regulatory aspects and economics.
  • India has sufficient coal reserves. In India almost 65-70% of electricity production is dependent on coal which produces a huge quantity of Fly Ash as residue which is allegedly a waste product in Thermal Power Stations.Presently majority of the coal ash generated is being handled in wet form and disposed off in ash ponds which is harmful for the environment and moreover ashremains unutilized for gainful applications.
  • Marketability of fly ash, among other things, would largely depend on the power plant’s proximity with markets like the cement plants and ports. Gujarat, for example, has the unique advantage of having the longest coastline with many major and minor ports for easy export of fly ash.
  • Coal-fired power plant fly ash represents a potentially significant source for certain types of commercial carbon products from coal. In analyzing the fly ash from Reliant Energy’s Niles power plant, PMET engineers noted that the unique high carbon fly ash produced from combustion in a cyclone burner (CB) seems to be suitable for utilization in certain carbon markets with some process upgrading.
  • At present, nearly 90 million tonnes of flyash is being generated annually in India and nearly 65,000 acres of land is presently occupied by ash ponds. Fly ash as a material is siliceous or aluminous with pozzolanic properties. It is refractory and alkaline in nature, having fineness in the range of 3000-6000
  • The annual demand of bricks by 2010 studied under different scenarios is expected to vary between 1275 million to 1495 million, while demand for fly ash bricks would be around 318 million to 373 million. This average daily demand for fly ash bricks is likely to increase from 0.4 million units in 2004 to anywhere between 0.87 to 1.2 million units by 2010. This calls for strengthening of current fly ash brick production levels by 1.5 to 2 times
  • Fly Ash
  • Coal Ash
  • Chemical Comparison of Fly Ash
  • Coal Ash Fact Sheet
  • Chemistry of Coal Fly Ash
  • CCPs-FAQ
  • High Volume Fly Ash Concrete
  • Fly Ash -Types and Benefits
  • Freezing and Thawing Properties of Fly Ash Bricks
  • FAQ


  • High Value Fly Ash Production
  • Fluidized Bed Combustion Process
  • Production of Fly Ash in Utility Boiler with Electrostatic Precipitator
  • Fly Ash Formation
  • Process Conveying
  • Dry Fly Ash Handling and Delivery System


  • Fluidized Bed Combustion Systems for Power Generation
  • Clean Development Mechanism
  • Fly Ash for Architectural Concrete
  • Fly Ash Technology
  • Separation Technology
  • Technology Development Life Cycle
  • High Volume Fly Ash Concrete Technology
  • Techno-Market Survey on Flyash Bricks
  • Technology Offer-Fly Ash Bricks
  • Fly Ash Drying
  • Electrostatic Precipitators
  • Al/SiCp composites
  • Aluminum Fly Ash Composite
  • Treatment of Fly Ash


  • Ammonia Removal From Fly Ash
  • Method of Reducing Unburned Carbon Levels in Coal Ash
  • Fly Ash Cementitious Material
  • Asphaltic Roofing Material and Method with Fly Ash Filler
  • Method for Pretreating Coal Fly Ash
  • Wallboard With Fly Ash


  • Ashcrete
  • Duracem F
  • Hite Pozzo R-12
  • Ash Bricks


  • Fly Ash for Concrete
  • Construction Industry
  • Beneficial Uses of Flyash
  • Fly Ash Use and Greenhouse Gas Benefits
  • Animal Performance in Pens with Fly Ash Soil
  • Manufacture of Lightweight Aggregate (LWA) from Fly Ash
  • Fly Ash Soil Stabilization
  • Microbes in Soil amended with Fly Ash
  • Biofertilizer & Biopesticide Formulations
  • HVFA Concrete
  • Use of Fly Ash Concrete at Liu Center
  • Coal Ash Beneficial Use in Mine Drainage Remediation
  • Use of Coal Ash in Mine Reclamation
  • Fly Ash to Make Bricks and Other Products
  • Triboelectrostatic Fly Ash Beneficiation
  • Fly Ash-Grout Use
  • Fly Ash Improves Workability
  • Synthesis of Zeolites from Fly Ash
  • Magnesium Alloys Produced From Fly Ash


  • Ordering - Dry Fly Ash System
  • Management of Fly Ash from Fluidized Bed Combustion
  • Managing Fly Ash
  • Fly Ash Management-Vision for New Millenium
  • Total Fly Ash Management

Equipment Suppliers

  • Flubet
  • Fly Ash Components
  • Automatic Fly Ash Brick Making Machines Supplier
  • Brick Making Machinery Directory
  • Coal and Ash Characterization Equipment
  • Fly Ash Bricks Making Machine Suppliers
  • Fly Ash Brick Machines Supplier
  • Fly Ash Handling Equipment Suppliers
  • Neptune
  • Fly Ash Machinery
  • Concrete Domes for Flyash Storage
  • Dust Collectors
  • Construction and Building Equipment Supplier
  • Digital Systems


  • HVFAC for Structural Applications
  • Birla Ready Mix Concrete-Hyderabad
  • Bandra-Worli Sea Link Project-Mumbai
  • Use of Higher Volume Fly Ash in Concrete for Building Sector
  • CDM Projects
  • Reduction in Portland Cement Consumption in Concrete Mix
  • Making Fired Bricks From Fly Ash
  • Compacting Fly Ash to Make Bricks
  • Real Estate Development Project-Hubli
  • Fly Ash Concrete Modified Strengths Projects
  • FaL-G Brick Project
  • Rajasthan Atomic Power Plant
  • HVFAC Project in India
  • Farmhouse Project
  • Rest Hall Project
  • CIDA/NRCan/CII Project
  • Coal Fly Ash Briquettes
  • Fly Ash Disposal and Utilization-Technology Projects
  • Utilization of Fly-Ash by Brick Manufacturers
Plant and Investment
  • Bothra Machines-Profitability Statement
  • Fly Ash Management-India
  • Investment Projects-Utilization of Coal Fly Ashes
  • Fly Ash Brick Manufacturing Plant
  • Fly Ash Or Clay Brick Making Plant
  • Investment Projects-Brick Production from Coal Fly Ashes
  • Pozzocrete Plant
  • ADM Fly Ash Silos


  • Consultants from India & other Countries

Safety and Guidelines

  • Use of Fly Ash and Slag in Concrete
  • ProAsh-Coal Fly Ash
  • Instructions for Use of Fly Ash to Stabilize Soil in Livestock Facilities
  • Guidelines for Using Hydrated Fly Ash as Flexible Base
  • Save Soil, Use Flyash
  • Lafarge Fly Ash and Bottom Ash
  • Fly Ash
  • Boral Class F Fly Ash
  • Blue Circle Southern Cement
  • Fine Grade Fly Ash Class F Fly Ash from Bituminous Coal
  • Class C Fly Ash
  • CCP

Policy and Regulation

  • Quality Control of Fly Ash
  • Taming Fly Ash Menace
  • Legal and Regulatory
    Framework for Environmental Protection in India
  • Acceptance Policy for Fly Ash
  • Jharkhand State Pollution Control Board
  • Karnataka State Pollution Control Board
  • Approval Policy for Fly Ash
  • Notification and Amendments


  • Buy Recycled Coal Fly Ash
  • Coal Ash Recycling
  • Fly Ash Recycling & Processing
  • Reburning Biomass Fly Ash
  • Flyash Recycling
  • Fly Ash In Transportation
  • Sustainable Coal Ash


  • Role of Fly Ash
  • CCP Production Survey
  • American Electric Power-Annual Report
  • Low-Calcium Fly Ash-Based Geopolymer Concrete
  • CARRC Auual Report
  • CARRC Progress Report
  • Expanding Supply for Fly Ash Derived Carbons
  • IWEM Report
  • Fly Ash for green revolution
  • Plasma Spray Deposition
  • Performance of Mortars Incorporating Finely-Ground Fly Ash
  • Fly Ash News
  • Environmental Impacts of Using Fly Ash

Utilization of Fly-Ash

  • Coal Fly-Ash Utilization in Greece
  • Potential of Fly Ash Utilization in India
  • Utilization & Management - India
  • Coal Ash Utilization in South Africa
  • Utilization of CCPs in Ohio


  • India Scenario
  • Coal Ash in Israel
  • Carbon Credit for
    Producing PPC
  • Fly Ash Bulk Sales
  • America's Coal Ash Leader
  • Fly Ash Market Strategy in UK
  • Western Region Fly Ash Survey
  • Flyash Prefabrications Market
  • CCBs Market Place
  • Future of Fly Ash

Manufacturers, Exporters, Suppliers and Importers

  • Fly Ash Exporters
  • Fly Ash Producers
  • Fly Ash Manufacturers and Suppliers
  • Tanveer Enterprises
  • Headwaters Resources
  • AshTech
  • Fly Ash Buyers
  • Fly Ash Importers

Company Profiles

  • Boral Material Technologies Inc.
  • FlyAsh Direct
  • Company & Products of India
  • Hi-Tech FlyAsh (India) Pvt. Ltd
  • Separation Technologies LLC

Useful Links

  • ACAA Links
  • Fly Ash Library

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Primary Information Services
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Ullagaram, Chennai - 600091, India.
 Phone: 91 44 22421080 
Email :
Fax: 91 44 22423753 Mobiles:9940043898,9444008898
Mobile numbers:9940043898, 9444008898  Fax : 91 44 22423753