Put Retaining Wall On Concrete Or Gravel

How to build a concrete wall figure a.
Put retaining wall on concrete or gravel. A retaining wall is a practical outdoor feature that can help keep your yard in top form but it s often overlooked or misunderstood. Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks. Excavation leveling pad. The base of a retaining wall should be set below ground level.
Use crushed stone behind the wall loose gravel and stones don t hold water like soil does. So diyers have come up with an interesting trick. Building a retaining wall in the conventional ways is not a trivial matter. After you finish the first course fill the space between your retaining wall and.
Base course drainage pipe. Of compacted base 1 in. Position your first block and use a standard level to make sure it s even. Rather than messing around with mortar they lay the walls down like lego pieces using concrete while it s still in the bag.
The first course of block that you lay is known as the base course. Basic retaining wall installation step 1. That s right the idea is that. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
In its most basic form it s a structure that holds soil in. Your retaining wall design will determine how you mark the area. The leveling pad is the first piece in constructing a stable wall that will last for. Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Continue laying your first course of blocks making sure to check that every block is level. Follow the block manufacturer s instructions for wall height limits. Walls over 4 foot should use geo grid fabric different block designs limit allowable height use filter fabric over wet or dry soil then cover with gravel. Soil holds water so the dirt will expand and contract during winter thus pushing on the wall and eventually toppling it over.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in. The following points need to be considered when planning your retaining wall installation. Of leveling sand and half the height of the first course of blocks. If needed reposition it using additional.
The taller a wall is the further below ground level it should be set. To mark a free form layout use a rope or hose to outline the shape. We go about 6 8 deep behind the wall with loose rock usually crushed granite and up to the second row from the top.