• Summary
• Specification
• Examples

Shape and types

• CHD structure
• CHD 200
• CHD 200R
• CHD 300
• CHD 300R

Advantages

Discharge capacity testing results

Dicharge capacity comparison

Application

Application

1. 1. Low cost
   • - Installation and material cost is half than gravel or sands
   • - Easy to store and transport
2. 2. High Drainage efficiency
   • - Structure of core provides multiple channels for vertical and horizontal water flow
   • - Filter fabric permits high volume entry of water into core while restraining soil particles
3. 3. Workability
   • - Lightweight, flexibiity easy-to-handle
   • - NO heavy equipments or skilled laborers are required.
4. 4. Confidence
   • - Uniform properties and quality assure predictable drain performance