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Discussion Starter #1
I am having a new modular home set up and they just finished with the footers and when they pulled the forms off I noticed some voids in the concrete and since I know nothing about concrete work I just wondered if this is ok. I personally think that this is a sorry job of pouring concrete and would really like some help on what I need to do. I am going to TRY and post some pics of it. I am afraid they will say it is only cosmetic and try to fill the voids with mortar. I think they need to tear it out and start over.
 

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Since you could have a void down to the footing, it could be a structural problem, even in a shallow footing with a crawl space. Too bad you did not have the advantage of a permit and good inspection. - Are there any footings? Obviously there is no reinforcement.

Who hired the concrete contractor for the modular? - You or the home supplier. If it was the supplier, you will have more leverage than if you hired the contractor since it then is ultimately is your responsibility.

You see a lot of this stuff on poured foundations. Too many people pour or dump concrete to just fill up the forms. Usually they are patched immediately and the contractors usually learn where the major errors are. - That is IF they do more than one or two jobs and have to be responsible for the lack of knowledge and control.

Looks like a DIY job at best.

Windows and corners are biggest problem areas in addition to the concrete on the footing.

Dick
 

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Discussion Starter #3 (Edited)
Thanks ConcreteMasonry,
The home supplier hired the concrete man. It was inspected before it was poured. It looked like they used plenty of rebar for reinforcement. The majority of the footing looks like they done a decent job but it looks like one of the loads of concrete was too thick and didnt find all the voids under the vents. Below are some more pics from a wider angle.

The last pic is one of some of the rebar not covered.
 

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They also didnt set their forms very straight. Here is a pic of the opening they left so they can get inside to pour the piers. You can see how the two stem walls are offset.
 

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The concrete was not too thick. The concrete did not have the vibration to properly place and consolidate the concrete. The rest of the concrete also is probably not consolidated and placed properly. At lest there was son reinforcement even if does no good where it is important.

Too bad there was not the opportunity to have the concrete placement and results that should have been available with a permit.

Obviously, there is no excuse for the misalignment of the walls, but the modular home supplier has probably got a lot of tricks to make it works, but a stick-built contractor would never accept that kind of foundation variation.

You did not post where you are from, so or is hard to tell if footings were required or you if could get away with uninspected, unformed footings with the foundation wall on top.
 

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Discussion Starter #6
I am from the Tx. Panhandle. You are correct about the vibration as they did not use one.

Could all of this be a structural problem in a few years or is it only cosmetic? I will be doing a back fill to 8" below the top of the foundation. I am going to have a DIY that is a pretty good concrete man come look at after church tomorrow and get his opinion on it also.

I am in the dirt construction business and if I did something like this I would personally fix the problem asap before anyone else got to see it.
 
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