kitchen extension - cavity wall - dry concrete?

[Kido44]

hi, hope someone can answer my query.

I'm currently having a kitchen extension done and the builder have just completed concrete block footings to dpc height.
They have just poured dry bags of concrete into the cavity walls, is this OK?

Thanks.

 

[noseall]

The foundation masonry of a typical cavity wall would have concrete poured into the cavity up to within three courses (225mm) of the dpc.

They may have used a dry mix if the cavity had plenty of moisture or standing water already present within. Not unusual in the UK.

 

[^woody^]

I did not know that we can buy "dry bags of concrete"

If you mean bags of concrete sand then that is not OK

 

[Kido44]

The foundation masonry of a typical cavity wall would have concrete poured into the cavity up to within three courses (225mm) of the dpc.

They may have used a dry mix if the cavity had plenty of moisture or standing water already present within. Not unusual in the UK.

Hi yes there is plenty of moisture and water built up within the footings.
Concrete or bags of cement, I'm not a builder so don't know.

Will this go hard over time or stop dry?

Thanks for your help

 

[noseall]

Hard as nails.

 

[joinerjohn]

Do the builders ride off into the sunset on their horses at the end of the working day ??

 

[Kido44]

Hard as nails.

So just to confirm the bags of cement (or bags of concrete) that have been poured into the cavity, although its dry and dust at the moment, it will harden and become solid?

 

[joinerjohn]

It's not usually put in bone dry. A stiff mix is made up and put in, tamped down then trowelled off level.

 

[noseall]

It's not usually put in bone dry. A stiff mix is made up and put in, tamped down then trowelled off level.

We had to recently.

There was so much water present that it was pointless adding water prior to filling the cavity, thats why i mentioned the water issue.

By the way, it is common practice to do this with situations where there is a prevalence of water hanging about, like in a trench bottom for example.

 

[Kido44]

It's not usually put in bone dry. A stiff mix is made up and put in, tamped down then trowelled off level.

We had to recently.

There was so much water present that it was pointless adding water prior to filling the cavity, thats why i mentioned the water issue.

By the way, it is common practice to do this with situations where there is a prevalence of water hanging about, like in a trench bottom for example.

That's a very similar circumstance to this.

Thanks for your advice mate.