Reinforcement of my septic tank. Is it necessary to reinforce concrete that does not carry loads?

When laying reinforcement in a concrete structure, not everyone thinks about why it is needed there. And in my next job, I had to think about the need to use it.

And so, I continue my adventure to build a septic tank. In the last article, I wrote about how I made the formwork.

And part of this work was the reinforcement process.

Although in fact, I had doubts about the advisability of using fittings, in my design.

What are the loads acting on the walls of the septic tank?

• Outside, the soil and groundwater will press.
• And from the inside, all this will be balanced by the contents of the septic tank.

It turns out that the walls and floor will simply serve as a barrier between wastewater and the environment. In this case, there will be no bending loads.

But still, I put the reinforcement in my design.

• At first, reinforcement, in addition to the perception of tensile loads, also serves as a connection between the elements. In my case, walls with a bottom and a slab on top.
• And secondly, temporary loads are possible during the shrinkage of the septic tank, which can lead to damage.

And most importantly, the fittings are already there(left from the construction of the foundation). It's a sin to leave her idle 😁

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