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Recon blocks have quickly become the product choice for retaining wall water applications because of their proven durability and ease of installation. By using wet-cast, air-entrained concrete, Recon blocks can perform in numerous harsh environments, including exposure to chlorides, exposure to repeated freeze thaw cycles, and water sub-merged applications. Since Recon blocks do not require steel reinforcement, they are not susceptible to the effects of corrosion. In addition, Recon blocks allow for rapid installation and reduce the footprint when constructed as a gravity wall.
Low Permeable Soil
Installation of low permeable soil at the top of the retaining wall prevents surface water infiltration behind the retaining wall.
Extended Free Draining Backfill
Free draining backfill should be installed at a 1:1 from the bottom of the base block to 12” (30cm) above the high water elevation.
Filter Fabric
Installation of filter fabric is recommended between the onsite soils and the free draining material to prevent soil migration into the free draining stone.
Free Draining Backfill
Installing free draining backfill behind the wall in a water application helps to prevent hydrostatic pressure build up and easily allows water that comes in to get back out.
Leveling Pad
A compacted stone or unreinforced concrete leveling pad ensures proper bearing and levelness for the blocks above.
Wall Toe Protection
Proper toe protection should be provided to prevent scour at the base of the wall and prevent erosion and undermining of the wall.
Considerations
Special considerations should be taken when designing a retaining wall for a water application.
To ensure proper and long-term performance, designers must consider the following:
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Construction Detail Drawings
Comprehensive set of details for both retaining wall designers and retaining wall contractors.
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Water Applications
A collection of photos detailing various applications of the use of Recon gravity wall and reinforced wall systems in water applications.
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