Fill Sand (Dafan)

Overview

Fill sand, commonly known as “Dafan,” is a compactable material used in construction for backfilling, leveling, and foundational support. It is composed of fine to medium-sized granular particles that enhance soil stability, making it a crucial material for road construction, foundation preparation, and landscaping applications.

Why You Should Use It?

• Excellent Compaction: Ensures soil stability and reduces settlement.
• Enhances Drainage: Prevents water accumulation in construction sites.
• Multipurpose Material: Used in roads, buildings, and landscaping.
• Affordable and Readily Available: Cost-effective for large-scale projects.
• Improves Load Distribution: Provides strong support for structures.

Key Features

Uses

• Backfilling: Ideal for filling trenches, foundation gaps, and underground spaces.
• Foundation Support: Enhances stability for roads and buildings.
• Road Base Preparation: Forms a solid base before pavement installation.
• Drainage Systems: Allows water movement, reducing the risk of erosion.
• Landscaping and Grading: Provides an even surface for outdoor spaces.

Density & Composition

Case Studies

1. Infrastructure Projects: Used in major roadworks for compaction and stability.
2. Building Foundations: Ensures structural integrity by preventing settlement.
3. Sports Fields & Parks: Provides a level and well-drained surface.

Application Recommendations

• Proper Compaction: Use a mechanical compactor for optimal results.
• Moisture Control: Keep moisture levels balanced for better density.
• Layered Installation: Apply in layers for even load distribution.
• Regular Testing: Monitor density and composition for consistent quality.