Help Desk

When constructing a convex curve with Interbloc retaining walls, traditional methods create wedge-shaped gaps between straight wall segments.

Two primary options exist for filling these gaps, each with its own considerations:

OPTION 1: INTERBLOC WEDGE BLOCKS

• Description: Specialized wedge-shaped blocks designed to fit into the gaps, providing an aesthetically pleasing finish.
• Pros: Simple to install, visually appealing.
• Cons: Not suitable for structural support in high retaining walls. Blocks sit on top of the lower course without additional ties.
• Best for: Low retaining walls with primarily aesthetic requirements.

OPTION2: INSITU CONCRETE POUR

• Description: Reinforced concrete is poured within the gaps to create a structurally sound corner section.
• Pros: Provides robust structural support for the wall.
• Cons: More complex installation, requiring starter bars, reinforcing, formwork, and pouring.
• Best for: High retaining walls or situations where structural integrity is critical.

PROCEDURE FOR OPTION 2

1. Epoxy Starter Bars: Locate indentations on the ends of the Interbloc blocks and secure starter bars with epoxy.
2. Construct Reinforcing Cage: Tie reinforcing bars to the starter bars, creating a cage that will strengthen the poured concrete.
3. Build Formwork: Box in the gap to contain the concrete during pouring.
4. Pour and Finish: Pour concrete into the formwork, ensuring proper consolidation and a smooth finish.

Important Notes:

• Always consult with a qualified engineer when designing retaining walls, especially those with curves or significant height.
• Soil conditions, wall design, and local building codes will influence the best gap-filling solution for your project.