Explore Ultra Fine Fly Ash

Explore Fine Fly Ash

Customised fineness

Infrastructure

Expertise

What is HITEPOZZO® R5

HITEPOZZO® R5 is an engineered ultrafine fly ash produced from carefully selected Class F fly ash with controlled fineness, high specific surface area and consistent particle-size distribution. Its predominantly spherical ultrafine particles act as both a micro-filler and pozzolanic performance enhancer, improving particle packing, reactivity, binder efficiency, pore refinement, workability, strength, long-term durability and overall system performance.

It is designed for high-performance concrete, advanced concrete systems, advanced cementitious systems, alternative binder systems such as alkali-activated binders and geopolymer systems, construction chemicals and other specialized formulations. HITEPOZZO® R5 can also be used as a cost-effective performance alternative or partial replacement for expensive SCMs such as silica fume, metakaolin and microfine slag.

Beyond cementitious applications, HITEPOZZO® R5 also serves as a functional engineered aluminosilicate material for fillers, composites, ceramics, lightweight materials and next-generation material technologies across industries.

Why HITEPOZZO® R5?

Fineness Matters

With a typical mean particle size of 5–7 µm, HITEPOZZO® - R5 ultrafine high reactivity fly ash is substantially finer than conventional fly ash products and Portland cement

  • 3 – 6X finer than raw (unclassified) fly ash (typically 20–40 µm)
  • 2 – 5X finer than ASTM C618 Class F compliant classified fly ash (typically 15–30 µm)
  • 2 – 5X finer than IS 3812 compliant classified fly ash (typically 15–30 µm)
  • 2 – 4X finer than BS EN 450-1 Category S classified fly ash (typically 12–25 µm)
  • 2 – 3X finer than Portland Cement (typically 12–18 µm)

Technical Highlights

D10 2–3 µm
D50 5–7 µm
D90 12–15 µm
Specific surface area (BET) >1500 m²/kg
Morphology Spherical
SiO₂+Al₂O₃+Fe₂O₃ 94.7%
High-performance Concrete Systems

Conventional classified fly ash is primarily used as a supplementary cementitious material (SCM) for partial cement replacement, cost optimization, improved workability and long-term strength development. HITEPOZZO® - R5 Ultrafine Class F Fly Ash goes beyond conventional fly ash by functioning as a high-performance micro-filler and pozzolanic reactivity enhancer. Its engineered ultrafine particle size distribution and enhanced specific surface area improve particle packing, microstructural density, early and long-term strength development and durability, making it suitable for high-performance concrete (HPC), high-strength concrete (HSC), ready-mix concrete (RMC), precast concrete, durable concrete exposed to aggressive environments and other performance-driven cementitious applications.

Advanced Concrete Systems

The predominantly spherical morphology of HITEPOZZO® - R5 promotes improved workability and flow characteristics through a ball-bearing effect, reducing inter-particle friction and facilitating optimized rheology. As a result, equivalent performance can often be achieved with reduced water demand and lower chemical admixture / superplasticizer dosages compared with conventional fly ash and other high-reactivity supplementary cementitious materials. HITEPOZZO® - R5 is also well suited for use in air-entrained concrete systems, where its controlled fineness and predominantly spherical particle morphology support air-void stability and overall mixture robustness.

Advanced Cementitious Systems

In addition, it is a highly compatible fly ash for alkali-activated binder (AAB) systems, geopolymers, advanced low-carbon cementitious formulations, construction chemical products, 3D printed concrete and other performance-driven cementitious applications requiring enhanced particle packing, improved formulation efficiency, increased durability, optimized cost-performance, and the reduction of reliance on higher-cost supplementary cementitious materials (SCMs) such as silica fume, metakaolin and microfine slag.

Beyond Cementitious Applications

Beyond cementitious applications, HITEPOZZO® – R5 serves as a versatile engineered aluminosilicate material for specialty industrial applications, supporting improved formulation efficiency, processability, and performance across engineered fillers, advanced composites, specialty ceramics, lightweight materials, thermal-management products, sustainable building materials and next-generation material technologies. Its unique characteristics make it an attractive functional mineral ingredient for manufacturers developing innovative, value-added, and performance-driven products.

Looking for a Cost-Effective Alternative to Silica Fume, Metakaolin or Microfine Slag?

Request a sample and evaluate HITEPOZZO® R5 UFFA in your concrete, construction chemical or binder formulation.

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Key Performance Benefits

HITEPOZZO® R5 improves performance through engineered particle technology, enhanced pozzolanic activity and optimized binder efficiency.

Enhanced Particle Packing

Engineered ultrafine particles fill voids between cement grains, increasing packing density, reducing porosity and improving binder efficiency, strength and durability.

Denser Microstructure

Enhanced Binder Efficiency

Improves cement utilization by combining optimized particle packing with additional pozzolanic reaction sites, enabling lower binder consumption without sacrificing performance.

Lower Cement Usage

Enhanced Pozzolanic Reactivity

Accelerates secondary C–S–H gel formation through efficient calcium hydroxide consumption, improving matrix densification, ITZ quality and long-term durability.

Stronger C–S–H Formation

Reduced Water Demand

Ultrafine spherical particles create a ball-bearing effect, improving workability while enabling lower water–cement ratios and reduced admixture dosage.

Improved Workability

Improved Pumpability

Optimized particle morphology improves lubrication within the mix, reducing pumping pressure for high-rise, long-distance and heavily reinforced concrete placement.

Easier Placement

Reduced Bleeding & Segregation

Improved fines distribution produces a more cohesive concrete mix, minimizing segregation while enhancing finishability and overall placement consistency.

Stable Concrete Mix

Enhanced Strength Development

Additional C–S–H formation strengthens the cement matrix, producing higher compressive strength together with improved long-term structural performance.

Higher Strength

Improved Crack Resistance

Reduces drying shrinkage and internal stresses while improving matrix integrity, helping limit micro-crack formation and crack propagation.

Better Crack Control

Increased Durability

Acts as a high-performance micro-filler, reducing capillary porosity and improving resistance to chloride ingress, sulfate attack and aggressive environments.

Longer Service Life

Enhanced Air-Void Stability

Controlled fineness and spherical particles support stable air-entrained systems, improving freeze–thaw durability and air-void distribution.

Freeze–Thaw Resistance

Improved Surface Finish

Uniform ultrafine particles reduce bug holes while producing smoother architectural and precast concrete finishes with improved appearance.

Superior Finish Quality
Unlock the Full Potential of Your Concrete

Enhance strength, durability, workability, pumpability and long-term performance with HITEPOZZO® Ultrafine Fly Ash.

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Applications

HITEPOZZO® R5 is an engineered high-reactivity ultrafine fly ash developed for high-performance concrete, advanced binder systems, specialty construction materials and industrial applications.

Concrete Infrastructure High Performance Concrete & Infrastructure
Binder Systems Advanced Concrete Systems
SCM Replacement Advanced Cementitious Systems
Concrete Infrastructure Alternative Binders - Alkali Activated Binders
Concrete Infrastructure Geopolymer Binder & Concrete systems
Concrete Infrastructure Silica Fume (Micro Silica) Replacement
Concrete Infrastructure Alternative to Metakaolin
Concrete Infrastructure Microfine Slag (GGBS) Replacement
Concrete Infrastructure Construction Chemicals

Exploring a Unique Application for Ultrafine Fly Ash?

Whether you are developing advanced materials, specialty formulations, industrial products or next-generation technologies, our technical team can help evaluate the potential of HITEPOZZO® UFFA for your application. Request a sample and start your evaluation today.

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Cost Benefits

HITEPOZZO® R5 delivers measurable economic value by improving binder efficiency, reducing premium material consumption and enhancing long-term concrete performance.

In Concrete & Infrastructure

HITEPOZZO® – R5 is a high-performance supplementary cementitious material (SCM) that improves concrete economics by enhancing binder efficiency, reducing Portland cement consumption, and facilitating the partial replacement of higher-cost SCMs such as silica fume, metakaolin, and microfine slag. Its engineered ultrafine particle size distribution and predominantly spherical morphology improve particle packing, rheology, and mix efficiency, helping reduce water, admixture, pumping, placement, and overall construction costs. Combined with enhanced durability and service life, HITEPOZZO® – R5 enables the production of high-performance, cost-effective, and lower-carbon concrete and infrastructure.

Reduces Cement Consumption Replaces Expensive SCMs Reduces Superplasticizer Dosage Minimizes Pumping Cost Optimizes Construction Cost
In Advanced Cementitious & Alternative Binder Systems

HITEPOZZO® – R5 Ultrafine Fly Ash improves the cost efficiency of advanced and alternative binder systems by enhancing binder utilization, optimizing formulation performance and reducing dependence on higher-cost reactive materials. Its engineered ultrafine particle size distribution and predominantly spherical morphology improve particle packing, rheology, workability, and binder performance, helping reduce water demand and the dosage of costly additives, reactive powders, and specialty binder components. These benefits enable the development of cost-effective, durable, and high-performance alkali-activated binders (AAB), geopolymer systems, low-carbon binder technologies, and other next-generation cementitious materials.

Replaces Expensive SCMs Reduces Costly Additive Dosage Reduces Reactive Powder Dosage Reduces Costly Binder Component Optimizes Binder Cost
In Emerging Industrial Applications

HITEPOZZO® – R5 represents a new generation of engineered aluminosilicate materials that bridges the gap between conventional mineral fillers and high-cost specialty materials. Its unique combination of ultrafine particle engineering, high specific surface area, controlled particle size distribution, spherical morphology, and reactive glassy-phase chemistry enables manufacturers to achieve performance characteristics often associated with premium functional materials at a significantly lower cost. Supported by large-scale availability, consistent quality, and reliable supply, HITEPOZZO® – R5 provides a practical platform for product innovation, raw material optimization, and value engineering across diverse industrial sectors beyond traditional cement and concrete applications.

Replaces Functional Materials Optimizes Innovative Material Cost

Transform Your Concrete Economics

Reduce cement consumption & admixture dosage, replace high cost SCMs and lower total project costs with HITEPOZZO® Ultrafine Fly Ash

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Sustainability Benefits

HITEPOZZO® – R5 Ultrafine Fly Ash

HITEPOZZO® – R5 Ultrafine Fly Ash supports the development of durable, resource-efficient and lower-carbon concrete and binder systems by reducing Portland cement consumption and improving binder efficiency.

Derived from a beneficially reused industrial by-product, it promotes circular economy principles, reduces embodied carbon, conserves natural resources, enhances service life, and supports environmentally responsible construction while maintaining high performance.

HITEPOZZO® R5 Chemical Properties

Typical values complying with international standards.

Characteristics BS EN 450-1
Category S		 ASTM C618
Class F		 IS 3812
Part 1		 IS 19058 HITEPOZZO® R5
Silicon Dioxide (SiO2) + Aluminum Oxide (Al2O3) + Iron Oxide (Fe2O3), Min % 70 70 70 70 94.7
Silicon Dioxide (SiO2), Min % - - 35 35 61.84
Magnesium Oxide (MgO), Max % 4 - 5 5 1.54
Sulphur Trioxide (SO3), Max % 3 5 3 3 0.45
Moisture Content, Max % - 3 2 2 0.08
Loss On Ignition, Max % 5 6 5 4 0.61
Available Alkalies as Sodium Oxide (Na2O), Max % 5 1.5 1.5 1.5 -
Total Chlorides, Max % 0.1 - 0.05 0.05 0.009
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HIGGSMOND

Higgsmond is an advanced materials company specializing in engineered ultrafine and nano-scale material solutions. A sister concern of Hitech Fly Ash India Private Limited, Higgsmond serves as the material science, application engineering and global market development arm of the group.

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HITECH FLY ASH INDIA

Hitech Fly Ash India Private Limited is a 100% Export Oriented Unit (EOU) and one of India's leading classified fly ash manufacturers and exporters, with 20+ years of experience and an annual processing capacity of 750,000 MT.

Combining Hitech Fly Ash India's large-scale manufacturing and export capabilities with Higgsmond's expertise in material science and particle engineering, the HITEPOZZO® Ultrafine Fly Ash Series has been developed as a range of engineered ultrafine fly ash solutions for diverse industries.

Why Global Customers Choose HITEPOZZO® R5

20+

Years Experience

750,000 MT

Annual Processing Capacity

100%

Export Oriented Unit (EOU)

> 3 Million MT

Export Experience

  • Reliable supply from one of India’s leading fly ash processing plants
  • Controlled fineness and consistent particle-size distribution
  • Batch-to-batch consistency through stringent quality control
  • Consistent raw material sourcing for reliable product performance
  • Compliance with Indian and International standards
  • Application-specific product engineering capability
  • Technical support for product development and optimization
  • Bulk supply capability for large-scale projects
  • Flexible packaging and global logistics options
  • Bulk vessel and containerized shipping capability
  • Export experience across continents
  • Competitive, scalable and long-term supply solutions

Packing

25 Kg Small Bags
Jumbo Bags
Custom Packing Available

Incorporation

HITEPOZZO® R5 can generally be incorporated into conventional concrete and cementitious production processes without requiring specialized batching, transportation, placement, consolidation or finishing procedures.

Final dosage and mix design should always be established through project-specific trial evaluations.

Handling & Storage

To facilitate consistent discharge and conveying of the dry powder, appropriate hopper aeration may be beneficial depending on the handling system employed. The product should be stored in a clean, dry and covered location, protected from moisture and adverse environmental exposure. Bagged material should be stored on pallets and protected from direct ground contact. Under proper storage conditions, HITEPOZZO® Ultrafine Fly Ash has an indefinite shelf life and maintains its quality and performance characteristics.

Health & Safety

HITEPOZZO® Ultrafine Fly Ash is supplied as a fine mineral powder and should be handled in accordance with good industrial hygiene and occupational safety practices. Appropriate dust control measures, ventilation, and personal protective equipment (PPE) should be used during handling and processing. Users should review the applicable Material Safety Data Sheet (MSDS) and comply with all relevant health, safety, environmental, and regulatory requirements prior to use.

Ready to Source the Right Fly Ash Solution?

HITEPOZZO® delivers engineered fly ash solutions that help improve performance, optimize costs and support reliable supply for your business.

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Useful Links

Frequently Asked Questions

Ultrafine Fly Ash (UFFA) is an engineered high-reactivity supplementary cementitious material (SCM) produced through precision classification of Class F fly ash to achieve a finer and more controlled particle size distribution, higher specific surface area, lower LOI, enhanced reactive aluminosilicate content and improved particle packing characteristics than conventional fly ash, enabling superior performance across a wide range of applications.

Conventional fly ash is primarily used for cement replacement, workability enhancement, and long-term strength development. UFFA is significantly finer and more reactive, enabling improved particle packing, early-age strength development, durability, formulation efficiency and broader functional utility. As a result, its applications extend beyond conventional cement and concrete systems into advanced material technologies, engineered mineral systems and performance-driven industrial products.

HITEPOZZO® – R5 is not a direct replacement for chemical admixtures such as superplasticizers, plasticizers, retarders, accelerators, air-entraining agents, or viscosity-modifying admixtures. However, its engineered particle characteristics can improve workability, rheology, and mix efficiency, which may help reduce the dosage requirements of higher-cost superplasticizers and, in certain formulations, other rheology-modifying admixtures. HITEPOZZO® – R5 is generally compatible with commonly used concrete admixture systems and, when used in combination with appropriate admixtures, can support the development of next-generation high-performance, durable, and cost-efficient cementitious formulations.

Ultrafine Fly Ash can be evaluated as a partial replacement for silica fume or as a cost-effective silica fume alternative (Microsilica Alternative) in selected concrete, advanced cementitious systems, alternative binders, construction chemical formulations, and other performance-driven applications. The optimum replacement level depends on the performance requirements and formulation objectives of the application and should be determined through project-specific evaluation and testing.

Ultrafine Fly Ash can be evaluated as a partial replacement for metakaolin or as a cost-effective metakaolin alternative (Metakaolin Substitute) in selected concrete, advanced cementitious systems, alternative binders, construction chemical formulations, and other performance-driven applications. The optimum replacement level depends on the performance requirements and formulation objectives of the application and should be determined through project-specific evaluation and testing.

Ultrafine Fly Ash can be evaluated as a partial replacement for microfine slag or as a cost-effective microfine slag alternative in selected concrete, advanced cementitious systems, alternative binders, construction chemical formulations and other performance-driven applications. The optimum replacement level should be established through project-specific evaluation and testing based on the performance requirements and formulation objectives of the application.

Yes. HITEPOZZO® – R5 can help optimize formulation economics by improving binder efficiency and enabling the partial replacement of higher-cost supplementary cementitious materials and selected specialty mineral additives. The achievable cost benefits depend on the application, formulation design, and performance requirements and should be validated through project-specific evaluation.

HITEPOZZO® – R5 represents a new generation of engineered aluminosilicate materials that bridges the gap between conventional mineral fillers and high-cost specialty materials. Its unique combination of ultrafine particle engineering, high specific surface area, controlled particle size distribution, spherical morphology and reactive glassy-phase chemistry enables performance characteristics often associated with significantly more expensive materials. Supported by consistent quality and competitive economics, HITEPOZZO® – R5 provides manufacturers with a practical platform for product innovation, raw material optimization, and value engineering across diverse industrial sectors beyond traditional cement and concrete applications.

Suitability depends on the performance objectives, formulation requirements, processing conditions, and commercial targets of the application. Laboratory evaluation and application-specific trials are recommended to establish the optimum dosage and expected benefits.

The optimum fineness depends on the application requirements, performance objectives, processing conditions, and formulation strategy. Fine, microfine, and ultrafine fly ash grades offer different levels of reactivity, particle packing efficiency, and functional performance. HITEPOZZO® can supply customized fly ash grades tailored to specific technical and commercial requirements.

Yes. Sample quantities can be supplied for laboratory testing, formulation development, pilot-scale trials, product qualification, and project-specific performance evaluation.

Yes. Technical support can be provided to assist new product evaluation, formulation development and research applications.

Material selection involves balancing performance, cost, availability, consistency, sustainability and supply reliability. HITEPOZZO® – R5 offers an opportunity to evaluate whether improved material efficiency, optimized formulations and reduced reliance on higher-cost materials can provide measurable technical and commercial advantages.

Yes. In addition to standard products, custom-engineered fine, microfine, and ultrafine fly ash grades can be developed with tailored specific surface area and particle size distribution to meet project-specific and product-specific requirements. As fineness increases, the material typically exhibits improved particle packing characteristics, higher surface area, enhanced reactivity, and broader application potential. This allows manufacturers to select the most appropriate grade based on the technical, commercial, and performance requirements of the application.

Key considerations include product consistency, raw material quality, particle size distribution, specific surface area, manufacturing capability, supply reliability, export expertise, export readiness and quality assurance systems. Evaluating these factors helps ensure consistent performance and long-term supply security for commercial applications and large-scale projects.

India is one of the world's largest sources of high-quality Class F fly ash and offers significant advantages in raw material availability, production scale, export infrastructure, and cost competitiveness. HITEPOZZO® combines advanced particle engineering, advanced processing facility, large-scale manufacturing capability and global supply readiness to serve customers across domestic and international markets.

HITEPOZZO® – R5 is an engineered Class F Ultrafine Fly Ash manufactured for applications requiring enhanced reactivity, improved particle packing, controlled fineness, and consistent quality. Supported by large-scale manufacturing capability, customized product engineering, export readiness and reliable supply, HITEPOZZO® – R5 provides a practical solution for customers seeking a dependable ultrafine fly ash manufacturer and supplier.

Yes. HITEPOZZO® products are supplied to domestic and international markets and are supported by export-ready packaging, containerized shipping, bulk vessel logistics, export documentation, and global supply chain coordination.

Minimum order quantities vary depending on the product grade, packaging format, destination country, and logistics arrangement. Please contact our team for project-specific supply requirements.

Yes. Long-term supply arrangements can be structured for customers requiring consistent product quality, supply security, and reliable logistics support for ongoing commercial production or large-scale projects.

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