Hollow Concrete Block Retaining Wall
For low density blocks industrial wastes such as fly ash or bottom ash are used as the primary raw materials and are often called cinder blocks breeze blocks in different parts of.
Hollow concrete block retaining wall. Voids in the grout should be eliminated by applying. A wall any higher than this needs to be thicker and there are several ways of achieving this. Pour the grout and ensure that all spaces are filled adequately with grout to produce the best possible bond in the wall. Bricks can be laid in two skins which can be held together by mesh or built as a 225mm thick wall as shown in the laying bricks project.
Detailing of reinforced concrete block retaining wall. Lighter hollow blocks are available but they can t be split because cutting will expose the voids. Grouting process carried out as follow. 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.
They are the standard sized rectangular hollow blocks made of cast concrete of high or low density. Building walls using hollow concrete block is an economical means to creating a structure. Follow the block manufacturer s instructions for wall height limits. For example you can make a concrete block wall stronger than a poured concrete wall by simply adding some reinforcing steel and additional mortar to the.
Seal clean out holes. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding. Also some hollow blocks require individual backfilling which is time consuming. 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.
Grouting of concrete block retaining wall. Contractors elect to fill the hollow openings or voids in concrete blocks sometimes referred to as grouting after they are stacked or laid to achieve a stronger wall one with properties nearly identical to a poured concrete wall. The hollow block wall is depending solely on the strength of the thin mortar bed between each concrete block. Many pros prefer retaining wall blocks that are held together with pins rather than a lip on the bottom because pinned blocks work better on tighter curves and.
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. The addition of reinforcing steel to either wall system complicates the issue. The dry stack construction technique allows the incidental water to escape by flowing around the blocks and out the. For smaller projects and those poured by hand some type of funnel.