Hollow Concrete Block Retaining Wall Construction

Planning the retaining wall a locking flange on the blocks for this project makes your retaining wall ideas easier to accomplish.
Hollow concrete block retaining wall construction. Lighter hollow blocks are available but they can t be split because cutting will expose the voids. Design build manufacturer of interlocking large concrete blocks for gravity retaining walls security walls railroad flood control and containment bins. Concrete block wall material prices. Flexural stress comes from the pressure of the load the walls bear from the upper floors or roof of a house or from storms or seismic activity.
In this case the top of the excavation is sometimes boxed with lumber to create a finished appearance. The hollow core design combines with mortarless construction to allow water to drain freely from behind the segmental retaining wall. Incidental water moves easily through a vertical drain that is formed by the layer of wall rock placed behind the block and in the block cores. However hollow concrete block walls are not structurally very strong and will not resist the flexural stress that a wall is subjected to causing them to collapse easily.
The concrete foundation needed to support a cement block wall is usually created by pouring concrete into a hollow form lining the sides of the excavation trench but the concrete can also simply be poured into the trench a common scenario for construction of a freestanding landscape wall. The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block. Building walls using hollow concrete block is an economical means to creating a structure. Construction of concrete block retaining wall with steps concrete block retaining wall construction consists of number of phases including excavation foundation soil preparation retaining wall base construction concrete block unit placement grouting and drainage system installation.
Follow the block manufacturer s instructions for wall height limits. Also some hollow blocks require individual backfilling which is time consuming. These blocks lower the natural weight of masonry constructions and improve the physical properties of walls such as noise and thermal insulation. Hollow concrete blocks are more commonly used in masonry construction.
These phases are explained briefly.