How to Correctly Approach CRB Installations
Concrete retaining block (CRB) walls are commonly used to retain soil on sloped areas. The construction of these walls keeps natural slopes at bay, avoiding landslides from crushing buildings, roads, or other infrastructure adjacent to such a wall.
CRBs are useful on mountain-pass roads and where steep natural slopes need to be contained. They can also be used for retention ponds on construction sites and on aquaculture farms. MVA Bricks offers a selection of retaining-wall blocks for different applications. We also offer advice on the correct installation of these walls.
Concrete is the material of choice to cast retaining-wall blocks. These blocks can be cast at the correct density level to be strong enough and to resist natural elements such as heavy rain and other environmental influences. Concrete also has the necessary weight for a secure wall, allowing for a strong retainer for soil. The correct installation of CRBs requires a couple of prerequisite steps to ensure that your retaining wall is sturdy and will stand the test of time. Today, we will delve into some detail surrounding retaining walls and the right installation method.
Doing It the Right Way
Since CRBs are designed to retain soil, a civil engineer must draw up the plans for such a wall, even if it is lower than 1,8 m. Normally, walls that don’t exceed the height of 1,8 m are considered minor constructions, in which case you will not need to have the plans approved beforehand. However, any wall that retains soil requires approved plans drawn up by a civil engineer. Due to safety concerns, the correct design and installation are critical to ensure that they do not collapse.
The foundation of a CRB is pivotal to its construction. Surveying and setting out the location and excavation limits for a retaining wall is the first step. This allows you to identify where the wall’s foundation should begin, if bends would have to be incorporated, and to ensure the safety of the construction crew while the installation is underway. The engineer will specify the thickness of the trench that will form the base of the wall. Excavating the foundation in accordance with the approved plans is the correct and safe way to install a retaining wall.
If CRBs are lower than 1,2 m, a well-compacted base with a minimum depth of 100 mm will be adequate. Drainpipes must also be correctly installedduring the construction of a retaining wall. By implementing a positive-gravity flow for the outlets, the drainpipes can efficiently drain rainwater from the wall. Positive gravity flow means that the pipe is angled downward and that gravity will do its work, allowing the rainwater to drain through it naturally and easily from a higher point to a lower point.
MVA Bricks is your supplier of building blocks and materials. We offer a sensible selection of paving bricks, concrete kerbs, and CRBs to choose from. For more info on the correct installation of concrete retaining-wall blocks, please peruse our website. Choose us as your supplier of retaining-wall blocks and benefit from quality building materials for your next construction project.