Bottom Ash

Description

1. Product Overview

Bottom Ash is a coarse granular by-product generated from coal combustion in thermal power plants, collected from the base of furnaces after the combustion process. It is primarily used in construction, road base development, embankment filling, and lightweight aggregate applications.

With stable mineral composition and strong load-bearing characteristics, Bottom Ash provides a cost-effective alternative to natural aggregates and fill materials. As infrastructure projects expand globally and sustainable material sourcing becomes a priority, Bottom Ash plays a strategically important role in reducing construction costs while supporting responsible industrial by-product utilization.

2. Key Specifications & Technical Characteristics

• Primary Chemical Composition:
  • Silicon Dioxide (SiO₂)
  • Aluminum Oxide (Al₂O₃)
  • Iron Oxide (Fe₂O₃)
  • Calcium Oxide (CaO)
• Combined SiO₂ + Al₂O₃ + Fe₂O₃: Typically ≥70% (source dependent)
• Loss on Ignition (LOI): Controlled; typically ≤6%
• Form: Coarse granular / porous aggregate
• Color: Dark grey to black
• Particle Size: Typically 0–20 mm (custom grading available)
• Bulk Density: Approx. 0.9–1.3 MT/m³
• Water Absorption: Moderate to high (porous structure)
• Moisture Content: Controlled for transport stability
• Standards Compliance: Suitable for infrastructure and civil engineering applications (subject to project specifications)
• Packaging Options:
  • Bulk loose loading
  • 1 MT jumbo bags
• Shelf Life: Indefinite under dry storage conditions

3. Core Industrial Applications

Primary Industries

• Civil construction and infrastructure
• Road construction and pavement engineering
• Cement and block manufacturing
• Land development and embankment works

Operational Use Cases

• Road sub-base and base layer material
• Structural and non-structural fill
• Lightweight aggregate in concrete blocks
• Embankment and land reclamation projects

Performance & Cost Advantages

Bottom Ash provides excellent compaction and drainage characteristics, making it suitable for road base and structural fill applications. Its lightweight and porous structure reduces dead load in construction projects compared to traditional aggregates.

Compared to natural sand and gravel, Bottom Ash offers significant cost savings and reduces reliance on quarry resources. Its use supports large-scale infrastructure projects seeking economical materials while meeting environmental compliance and sustainability targets.

4. Competitive Advantages

• Quality Consistency: Controlled sourcing from established power generation facilities with batch testing available.
• Supply Reliability: High-volume, continuous availability suitable for long-term infrastructure projects.
• Logistics Capability: Bulk transport solutions and containerized export handling for regional and international supply.
• Price Competitiveness: Cost-effective alternative to natural aggregates and quarried materials.
• Sustainability Benefits: Promotes circular economy practices by repurposing coal combustion by-products and reducing landfill disposal.
• Technical Documentation: Chemical composition reports and material testing data available upon request.

Bottom Ash is positioned as a strategic sourcing solution for contractors and infrastructure developers seeking cost-efficient, scalable, and sustainable construction materials.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): Bulk 20 MT
• Loading Capacity:
  • 20ft Container: Approx. 20–25 MT
  • 40ft Container: Approx. 25–30 MT (subject to transport regulations)

Long-term supply contracts and project-based volume pricing are available for industrial buyers.