A range of industrial by-product-based construction materials — engineered for uniformity, tested for compliance, built for sustainable infrastructure.
Pravara manufactures a range of high-quality engineered materials developed to provide a sustainable alternative across construction and infrastructure applications. Manufactured under controlled process conditions, our products offer physical characteristics, reliable handling properties, and uniform quality — including Fly-Ash-Based Sand, Red-Mud Sand, F-Slag Sand, Phosphogypsum Sand, Pond-Ash Sand and Hybrid Composite Sand.
Each product is manufactured under controlled conditions and tested against relevant Indian Standards before it reaches your project.
Also known as FAB Sand, this engineered sand is produced from Class-F fly ash through controlled geopolymerisation and curing. The process yields rounded, uniform particles with excellent flow and packing behaviour, making it ideal for concrete, mortar, and finishing works that demand high workability.
Typical Uses
Conforms to IS 383 (Coarse & Fine Aggregates Specification) · Tested per IS 2386
Manufactured — not mined — Fly-Ash-Based Sand reduces dependency on river sand while diverting fly ash away from ash ponds, delivering the rounded, uniform particle shape natural sand cannot guarantee.
Manufactured using processed bauxite residue with stabilised chemistry, Red-Mud Sand exhibits high durability and resistance to aggressive environments.
Typical Uses
Manufactured and evaluated in line with applicable Indian Standards for engineered fill material
It converts bauxite residue — a significant industrial waste stream — into a durable, resilient construction material suited to demanding ground conditions.
F-Slag Sand blends fly ash with GGBFS (Ground Granulated Blast Furnace Slag) to enhance geopolymer gel formation and strength, delivering a denser microstructure and improved durability characteristics.
Typical Uses
Manufactured and evaluated in line with applicable Indian Standards for slag-blended aggregate use
The GGBFS blend produces a denser, stronger microstructure than standard engineered sand — built for structural and high-performance applications.
Phosphogypsum Sand combines fly ash with phosphogypsum to improve surface hardness and finish, offering a fine texture and enhanced adhesion characteristics in mortar systems.
Typical Uses
Manufactured and evaluated in line with applicable Indian Standards for gypsum-blended materials
Its fine texture and superior adhesion make it especially suited to finishing work where surface quality and bond strength matter most.
Pond-Ash Sand consists of granules derived from pond ash, with a lightweight, porous morphology that offers good drainage and compaction behaviour.
Typical Uses
Manufactured and evaluated in line with applicable Indian Standards for lightweight fill material
Its lightweight, porous structure gives Pond-Ash Sand excellent drainage properties, ideal for backfilling and non-structural fill applications.
Hybrid Composite Sand is a multi-residue engineered formulation for balanced performance, offering tailored properties for strength, workability, and durability.
Typical Uses
Manufactured and evaluated in line with applicable Indian Standards for engineered composite aggregate
By combining multiple industrial residues, Hybrid Composite Sand delivers a balanced, tailorable material suited to a wide range of concrete and infrastructure applications.
Every product is manufactured under controlled conditions for uniform quality and performance, batch after batch.
Every product in our range is built on an industrial by-product — fly ash, red mud, furnace slag, phosphogypsum or pond ash — converted into valued construction material.
Manufactured close to demand centres, this significantly reduces transport costs and associated carbon emissions.
This cuts dependency on river sand extraction and clay excavation, protecting riverbeds, topsoil and ecosystems.
Manufacturing parameters can be adjusted to meet specific project and application requirements.
Every product is tested and manufactured to meet relevant Indian Standards.
Request a sample, download a datasheet, or speak with our technical team today.
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