Corner Blocks

[LSB]

Does this look okay

HID is worried that the small parts of blocks at this corner may not be man enough to sustain the next level.

For context this is DPM level and will be entirely internal, the external wall to be built next.

TIA

 

 

[Andehh]

That will be fine!

[saveasteading]

It won't fall down.

It's better practice though to cut down two blocks to fill the space, than to insert tiny bits. Also  for small bits not to be at the corner.

So the perfect corner would have whole blocks, or no smaller than half blocks.

The left wall would therefore have the corner and next block exchanged.

This is because of stresses at the corner. If one wall tries to move, the adjoining one should have as much linkage as possible to spread the stress. 

 

I don't know if this is written anywhere. Perhaps someone else can clarify.

I may look in some old books.

 

[Andehh]

Just get the next layer to be as per saveasteading's post!

[nod]

Keep the full and half blocks at the corners and put the smaller cuts on the straight runs 

[ETC]

Swop over the cut for the full blocks.

[PeterW]

On the plus side the cuts look clean and done with a stihl saw and not just hacked off with a brick hammer !!

 

Are they pointing the inside joints too ..?

[Gus Potter]

6 hours ago, LSB said:

Does this look okay

Nearly.. but someone has not planned it out right.

 

My gut feeling is either the Architect or SE has not thought it through, or you have a brickie that it going to swing the lead and be even more lazy later on. Probably all are at fault by not talking to each other. Maybe the Architect, probably the SE by not positioning the movement joints in the right place and then not properly not specifying the bond required, mind you this is covered in parts of the BS 5628 codes, BS 8000 series for good workmanship etc. Blocks behave differently from bricks, bricks are shorter so the bond length is less but you have three brick courses for every on standard block laid on edge thus the bonding effect is enhanced with bricks cf blocks.

7 hours ago, LSB said:

HID is worried

Lucky you have the benefit of her intuition, I suspect there may be more to this and she has smelt "manure"?

 

The below is the right way of doing it. Corners are essential as they can resist the bending forces in the wall which your SE may have designed for, a well constructed corner saves the day many a time.. but they must be constructed properly.

 

For 100mm block the cut closer will be as below. For 140mm block the cut is a little shorter.

 

The main thing is that you work out from the corners... the strong points of the wall and position any movement joints, debonding ties accordingly. You don't do a rubbish corner and hope the rest hangs in there.

 

 

[LSB]

the issue with the size is that it's a barn conversion, these particular walls were not usable.

When we dug out the floors to start to underpin, the existing walls were not attached to the ground so had to be replaced.

But, we had to use exactly the same dimensions so for once we can't blame the architect.

What should have been done was a bit more measuring in advance to make sure that the blocks didn't end up like this in the last corner.

 

But, can this be left for this level and the rest done correctly or does it need removing and redoing.

 

Be assured, all the rest of the levels with be built corners first as it should be.

 

 

[Brickie]

Swap that half block out for a full one & have two 100mm pieces either side of the next block along. The small cut on the RHS isn’t the issue here-leaving very little bond at the corner on LHS for the next course is.