An article on options for filling a wedge shaped angle on a convex Interbloc wall.
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.
Option 2: In-Situ 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:
- Epoxy Starter Bars: Locate indentations on the ends of the Interbloc blocks and secure starter bars with epoxy.
- Construct Reinforcing Cage: Tie reinforcing bars to the starter bars, creating a cage that will strengthen the poured concrete.
- Build Formwork: Box in the gap to contain the concrete during pouring.
- Pour and Finish: Pour concrete into the formwork, ensuring proper consolidation and a smooth finish.
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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.