As you can see from the project, before doing the concrete base we will need the help of a hydro electrician and a hydro engineer. After finding out all the answers about the water pipes, electrical wires and water pumps, we get ready to do the concrete base (see attachment 1-3). Use 1X 3-s (known in carpentry as strapping to uniform the concrete base).
After the base is done, the next steep is to start laying the block wall. The blocks have to be solid which means you can use solid blocks or hollow blocks by filling the holes with cement. Let us say we are using 8x8x16 blocks. The solid block wall in this current project has 2 meanings or purposes.
Base for the wooden frame.
Back holding wall for stone facing.
The block wall has to be exactly parallel to the shape of the concrete base. Keep the same distance from the edge(1X3"s) of the concrete base when you do the block wall and make sure the shape of the block wall is exactly parallel to the shape of the concrete base. Before we start laying the blocks we have to find out the space between the blocks and the foundation edge (1x3"s).
The distance (D) is the distance between the foundation edge (1x3"s) and the blocks which is equal the thickness of the stone (S) plus the thickness of the mortar or cement (M) you will use for facing the stone. (See attachment 1-4)
D (distance between foundation line and solid blocks) = Stone Thickness (S)+Mortar (M)
D=S+M
See attachment 1-4.
If the stones come in different thickness keep in mind to consider the maximum thickness of the stone.
D=S maximum + M
Make sure that the height of the block wall does not exceed the height of the project because after the completion of the project the blocks cannot be visible.
For example, the height of the stone wall is 10 feet. The stone cups going on the top of the stone wall are from > to 1 feet. This means the height of block wall can not exceed 9 < feet. In this case build the block wall less then 9 feet.
After the block wall is completed we get ready for the wooden frame.
The materials used to construct the wooden frame can be different.
For the above project the wooden frame will be constructed due to the strapping known in carpentry as 1 X 3"s and 2 X 4"s. The height of the wooden frame has to be more than the height of the stone wall because we are making sure that the project is uniform upon its completion. Let us make the wooden frame 1 foot higher than the stone wall and because the block wall is lower than stone wall by 1 foot it leaves the wooden frame 2 feet higher then the block wall.
We start cutting the 2 X 4"s in 3.5 foot pieces.
After that, by using the concrete nail gun we nail the 2 X 4 pieces against the concrete blocks horizontally sticking out 2 feet from the top of the blocks all around the block wall from both sides symmetrically (inside and outside) as you can see in the drawing.
For every 2-3 blocks you can use 2 X 4"s and make sure they are perfectly nailed and tied to the blocks, even if you have to use 4-5 concrete nails for each piece of 2 X 4. (See attachment 1-5)
After that, nail 2 X 4"s vertically on the existing 2 X 4 which were horizontally nailed to the concrete blocks as you can see in the drawing. The next steep will be to nail the 1 X 3"s against the vertical 2 X 4 all around the block work as it's shown in the drawing (see attachment 1-6). The shape of the wooden form bounded by 1 x 3"s have to be exactly symmetric and parallel to the shape of the concrete base limited by 1 X 3"s. This is one of the most important detail in this method. The 1 X 3"s edging of the foundation have to be exactly symmetric and parallel according to the 1 X 3"s edging of the wooden frame. You have to have all the figures and the calculations done before you start doing the forms to make sure the wooden form bounded by the 1 X 3"s will be symmetric and parallel to the shape of the concrete base. And all the corners of the wooden form have to be exactly symmetric to the corresponding corners on the concrete base as well. |