Block Work Rebar Question

paintbob7

I am in france and have a 33 metre trench dug for a 1.2 metre high wall made from concrete block. The foundations have been poured already but one end of the trench is about an inch lower than the other end, can i add more mix on top to get level or can i just bed the blocks higher as i get to the lower end of the trench.

Also I have noticed out here in france the blocks are not solid, instead they are hollow square inside the block. I have noticed that they use rebar inserted every three meters upright and as they lay the block they break through the block and lay with the rebar running up through the middle of the block and then pour concrete into the holes the rebar runs through. The problem is the trench that has been dug has no upright rebar buried in it for the blocks, is this necessary as it is not a retaining wall or is there something I should do to reinforce the wall. Thanks for any help. Regards, Bob.

lukachuki

The 1" difference in the footer can be made up with mortar on the first course. As for the rebar it is possible to put it in after the footer has been poured. Just drill the proper size holes and set them with epoxy not fun but doable.

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paintbob7

Thanks for the help.

Just wondering though is the rebar necessary if it is not a retaining wall.

In England we have solid blocks and if its not retaining i've not used any reinforcement, but does it make a difference if the blocks are hollow.

Thanks again.

lukachuki

Ok so this wall is about 100' long by 4' tall and i assume that you are using something close to 8"x8"x16" block. Here code would call for rebar as you described with concrete and a couple of courses of horizontal reinforcement. This is what i'm talking about visually...


What is it going to be used for?

Also be aware that their are much more experienced....(some with licenses and others without) masons on here so whatever they say trumps me.

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neolitic

That is the question!

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