Precast Concrete Retaining Wall

A precast concrete retaining wall is normally used to retain earth or similar materials. It is also used to divide agricultural buildings such as a grain sheds or waste transfer stations to create storage bays.

Concrete retaining walls have gained in favour over in-situ concrete walls or timber walls and are very popular for civil engineering projects. They tend to be more economical, easier to install and more environmentally sound than other options. There are two main methods for fixing the retaining wall in place; embedding them into a concrete floor, or alternatively, using a ground fixing kit. The advantage of the latter solution is that the concrete retaining wall can be moved at a later date.

One of the most important things to consider when building a concrete retaining wall is the force at which the retained material is attempting to move forward and slide due to the force of gravity. This creates a lateral earth pressure behind the wall. Earth pressures will push the wall forward or overturn it if not properly looked at. Also, any groundwater behind the wall that is allowed to build up will cause an additional horizontal pressure on the wall. This problem can be solved by placing suitable drainage holes in the wall. While it can be an unwanted expense, getting a design from a structural engineer is very important and can save a lot of time and expense further down the line.

There are a range of products suitable for use as a concrete retaining wall. The most suitable product will depend on a number of factors including; the material retained, the height of the wall, site restrictions and budget. A few products that are worth considering; concrete panels (either used horizontally or vertically), L shape retaining wall units or concrete crib wall units. While the material costs can look expensive, after taking into account the savings in terms of installation, it often works out as the desired solution.

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Concrete Block Retaining Wall

To enclose a garden or make a decorative enclosed area you can build a concrete block retaining wall, which is not a difficult thing to do. Let us assume that you want a nice decorative area for an enclosed garden. The first thing you will need are interlocking concrete blocks which you will know how to buy after you have measured the area you want to retain. The interlocking concrete blocks will not require any mortar as each block has a lip that will lock into the previous block. These blocks are heavy but they are easy to work with. A concrete block retaining wall of this type can be built to be up to thirty inches tall. For a taller wall you need to prepare the area for water drainage and reinforce the wall for stability.

The first thing you want to do is to mark off your prospective wall area with a line and posts. You can mark the perimeter of the garden wall with a garden hose. You will need a solid base on which to begin to build therefore, using a shovel dig a trench in accordance with the size of your concrete block. If your property slopes that you will have to dig a trench at each level as you build. Otherwise, after you have built a solid foundation level you can begin to lay the blocks. After you have laid the foundation you can now start laying in the rest of the blocks. Be sure that the lip of the block you are laying is against the block before it. Continue to build checking carefully that all blocks are set in place levelly.

This tells you how to build a thirty inch garden retaining wall but there are many other retaining walls that can be built with a block. You should carefully measure the area where your retaining wall will be set and then draw a plan. Some concrete block retaining wall plans can be found on the Internet and there is a wide selection of styles to choose from.

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