Brickwork problem - Crack in wall

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dig dug dan
Posts: 2504
Joined: Thu Jul 10, 2003 10:20 pm
Location: hemel hempstead,herts. 01442 212315

Post: # 41260Post dig dug dan

A wall i built approx 8 years ago for a customer has developed a crack almost in the centre.
If you look at the image, it goes down from the creasing tile, to the centre of the "font" which is built into the brickwork, then under the font it travels as two separate cracks at 45 degrees to centre.
There is a smaller crack on the other side of the wall (wall is 9")

The footing was 600mm deep with reinforcing.

Not sure why theis has started only now. the only obvious thing is a large oak tree approx 3m away!

I have suggested to the client that i chop out the cracked bricks and replace the mortar elsewhere in the hopes that any movement has stopped

Image

please note, this picture was taken upon completion, i don't have a picture of the crack




Edited By dig dug dan on 1251482452
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

lutonlagerlout
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Location: bedfordshire

Post: # 41264Post lutonlagerlout

how long is the wall dan?
are there any expansion joints in it?
generally cracks dont get better,
they look like bovingdon berries a very soft brick,if the mortar was too strong any expansion will crack the weakest point,i.e. the bricks rather than the mortar
either that or the tree roots have lifted the foundation
LLL
"what,you want paying today??"

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dig dug dan
Posts: 2504
Joined: Thu Jul 10, 2003 10:20 pm
Location: hemel hempstead,herts. 01442 212315

Post: # 41267Post dig dug dan

Thanks LLL

The wall is approx 6m long.
No expansion joints. Just piers

They are in fact chesham multi's (Chosen by the customer)
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

lutonlagerlout
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Post: # 41273Post lutonlagerlout

jeez i had 1 in my hand not 2 hours ago, well matthews and bovingdon brickworks are only 6 miles apart so they are similar
a fairly soft brick
6 m is not overly long and if the footing is reinforced it shouldnt crack,it might move in 1 piece but thats isnt a problem
all in all very strange
i tell you what though dan,the really cold snap we had earlier this year did a lot of damage to walls round here

cutting out 1 brick is very hard to make good properly as its extremely hard to make sure the top of the brick has a full mortar joint
if its not extensive i would be tempted to put some clear outdoor silicon in the crack and rub some brick dust on to it
if you use something solid it could worsen the damage
LLL
"what,you want paying today??"

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irishpaving
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Joined: Mon Jun 29, 2009 11:14 pm
Location: uk

Post: # 41276Post irishpaving

How far down is the foundation Dan to the ffl. Also what type reinforcement,mesh or fiber
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henpecked
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Location: Warwickshire
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Post: # 41278Post henpecked

If the re-bar wasnt spaced from the outer skin in the founds . There's a good change water has gotten into it,expanded the metal and cracked the beam.
Big problem in the late 90's when using pecker fill improperly.

Hp

dig dug dan
Posts: 2504
Joined: Thu Jul 10, 2003 10:20 pm
Location: hemel hempstead,herts. 01442 212315

Post: # 41294Post dig dug dan

thanks for the replies guys

I like the silicone idea LLL
Will give that a go first

The footing was poured then a coulpe of lenghts of re-bar were pushed deep into the footing, one near the bottom one near the top, about centre to the trench

Probably not the correct way to do it.

The wall is approx 1.8m from foundation
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

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