12″ x 8″ x 18″ Allan Concrete Block
12″ x 8″ x 18″ Allan Concrete Block
Heavy-duty concrete block with distinctive trapezoidal opening for drainage and water management applications.
Key Features:
- 12″ x 8″ x 18″ nominal dimensions
- Trapezoidal center opening
- Heavy-duty construction
- 2,000+ PSI compressive strength
- Water flow management design
- Structural stability
- Interlocking capability
- Approximately 45-50 lbs per block
Perfect for:
Drainage culverts, retaining wall systems, erosion control structures, and water management applications requiring controlled water flow and structural integrity.
– Nationwide Delivery In 1-3 Days
$45.00
12″ x 8″ x 18″ Allan Concrete Block
Specialized Trapezoidal Opening Block
Heavy-duty concrete masonry unit featuring a distinctive trapezoidal opening for drainage systems, retaining walls, and specialized construction applications requiring controlled water flow.
Key Benefits
- Unique trapezoidal opening
- Superior drainage capacity
- Heavy-duty construction
- Erosion control functionality
- Structural stability
- Versatile applications
- Water management solution
- Interlocking capability
Technical Specifications
- Dimensions: 12″ x 8″ x 18″ nominal
- Actual Size: 11-5/8″ x 7-5/8″ x 17-5/8″
- Weight: Approximately 45-50 lbs
- Material: Portland cement and aggregates
- Opening Style: Trapezoidal center void
- Opening Dimensions: Tapered design
- Compressive Strength: 2,000+ PSI
- Color: Standard gray concrete
Perfect For
- Drainage culverts
- Retaining wall systems
- Erosion control structures
- Water management
- Stormwater systems
- Agricultural drainage
- Landscape water features
- Civil engineering projects
Installation Instructions
- Prepare level base with appropriate drainage media
- Align blocks with openings in flow direction
- Use concrete adhesive or mortar for secure placement
- Maintain consistent slope for proper water flow
- Stagger joints in multi-course applications
- Backfill with appropriate aggregate
- Consider geotextile lining for soil retention
- Ensure blocks are level side-to-side
Pro Tips
- Plan water management requirements before installation
- Calculate flow capacity for your specific application
- Consider using rebar reinforcement for taller structures
- Apply waterproofing additives for critical applications
- Combine with solid blocks for customized drainage patterns
- Protect outlet areas with erosion control measures
- Clean opening periodically to maintain flow capacity
- Consider downstream impact in design planning
Keywords:
Allan block, drainage block, trapezoid block, water management block, culvert block, retaining wall block, erosion control block, stormwater block
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