Why Slipform Technology is perfect for BIO-CNG Digester tanks

Key Advantages of Slipform for Digester Construction

• Uniform Wall Thickness & Smooth Curvature: Slipform construction ensures a perfectly circular profile with uniform wall thickness throughout the height of the tank. This is critical for structural balance and internal pressure resistance. The smooth inner surface also improves the flow and mixing of sludge, enhancing digestion efficiency.

• No Horizontal Joints or Weak Zones: Traditional shuttering methods require stopping at intervals to allow curing, creating horizontal cold joints that are often weak points in the structure. Slipform eliminates this issue by continuously pouring concrete, resulting in a single monolithic wall without any breaks or bonding inconsistencies.

• Faster, Crack-Free Construction: Because the pour is continuous, the chances of differential shrinkage and thermal cracking are significantly reduced. With 24/7 operation and real-time adjustments, slipform drastically reduces the construction timeline without sacrificing quality or finish.

• Superior Structural Integrity & Leak Resistance: Bio-CNG digesters must be leak-proof and gas-tight to retain biogas effectively and prevent contamination. Slipform walls, being joint-free and monolithic, offer excellent impermeability and structural durability, outperforming conventional tanks in demanding bio-processing environments.