Lay the first course staring at one end place the first course of concrete blocks top side up on the crushed rock with the front lip facing up and towards the front of the wall.
How to build a concrete block retaining wall uk.
Size the trench so there s enough room for the retaining wall block and at least 8 in.
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.
This is often the method used where the slope is quite steep.
Of space behind it.
Pour the grout and ensure that all spaces are filled adequately with grout to produce the best possible bond in the wall.
Stage 3 pour concrete between the blocks to cast the reinforced concrete wall.
Check the level and alignment of all blocks as you go along adjusting them with a rubber mallet.
Alternately you can build the retaining wall then fill in the space behind it.
Grouting process carried out as follow.
Once the first row is installed pack native soil to grade level on both sides of this course to anchor the wall in place.
Establish a level trench to ensure an even layer of base material.
Stage 1 excavate and cast a reinforced raft.
Detailing of reinforced concrete block retaining wall.
Excavate deep enough to completely bury at least one full course including space for 6 to 8 in.
Level to level blocks lengthwise and a torpedo level to level the front to back.
Voids in the grout should be eliminated by applying.
Cast in the wall started bars.
Start the fourth layer with a half block and continue starting layers with half blocks every other layer until your wall has reached the desired height.
Start the third layer with a regular cinder block and build out.
Seal clean out holes.
Grouting of concrete block retaining wall.
Fill the concrete cores with crushed gravel.
A wall any higher than this needs to be thicker and there are several ways of achieving this.
A garden retaining wall of up to 400mm high can be built out of a single skin wall of facing bricks or concrete block.
Install the first course of blocks using a taut string line to establish a straight row.