Mortarless Segmental Retaining Walls are a natural enhancement to a variety of landscape projects. Applications range from eight inch (8″) high terraces for erosion control or architectural retaining walls, to retaining walls 20 feet or more in height or structural retaining walls. The individual concrete units can be installed to virtually any straight or curved plan imaginable.
Segmental retaining walls are used to stabilize cuts and fills adjacent to highways, driveways, buildings, patios and parking lots, and numerous other applications. Segmental retaining walls replace treated wood, cast-in-place concrete, steel, and other retaining wall systems because they are durable, easier and quicker to install, and blend naturally with the surrounding environment. Concrete units resist deterioration when exposed to the elements without addition of toxic additives which can threaten the environment.
A variety of surface textures and features are available, including split faced, stone faced, and molded face units, any one of which may be scored, ribbed, or colored to fit any project application. Construction of segmental retaining walls does not require heavy equipment access, nor does the system require special construction skills to erect. Manufactured concrete retaining wall units weigh approximately 30 to 100 lbs each and are placed by hand on a level or sloped gravel bed. Successive courses are stacked dry on the course below in the architectural pattern desired. Mechanical interlocking and/or frictional shear strength between courses resists lateral soil pressure. In low-height walls, overturning forces due to soil pressure are resisted by the weight of the units, sometimes aided by an incline toward the retained soil. Higher walls resist lateral soil pressures by inclining the wall toward the retained earth or by other methods such as anchoring to geosynthetic reinforcement embedded in the soil.
Segmental retaining wall units are factory manufactured to quality standards. These requirements are intended to assure lasting performance, little or no maintenance, structural integrity, and continued aesthetic value.