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The simplistic concept of building these interlock blocks straight up and stacking the rows on each other will require the wall to dig into the surface beneath for a strong anchor against the earth pressures constantly acting on it. As with laying an outdoor floor surface using interlock bricks for driveways, this concept can be seen as the vertical version of this, with concrete blocks being used to layer and fill the wall until the desired height is reached. Let us have a look at some of the effective ways to build concrete retaining walls using interlock blocks.Īlthough the concept is usually applied using different materials, interlock blocks can be very effective when using a piling wall concept. Using interlock blocks to build such a retaining wall gives you the ability to adapt the shape of the wall to fit the landscape, creating a customised structure that will not only suit the landscape like a glove, but also improve the integrity and strength to contain earth pressures. These retaining walls are a common sight on mountain roads in South Africa, keeping the soil from collapsing onto the roads and causing interference or damage. One of the most effective ways around this problem is to erect a concrete retaining wall to keep sloped areas from interfering with levelled-out areas where strong foundations will be laid for roads or other building structures. Landscape elevation can be tricky, with building contractors having to identify the best location for roads and structures around difficult areas where steep slopes define the flow of the land.