Exploding bricks

[Chris Hex]

Hi,
I work in the Domestic market and get frustrated when sinking back boxes using an SDS. Every now and then I come across a house where the bricks explode/shatter when touched with an sds chisel. My solution so far has been to chain drill and remove with a scutch chisel, but its really time consuming. Does anyone have another solution. Someone suggested filling the hole with adhesive and gluing the back box in.
Cheers

Chris

 

[amlu]

pva on the crumbly bricks, wait 2 hours let it bond up, then mix some bonding with cement (5 parts to one or something), glue the back box in the hole, next day when it hardens fix with some wall plugs.

 

[Midwest]

Wot about the old fashion method, screws & rawplugs

 

[Rpa07]

Wot about the old fashion method, screws & rawplugs

And surface pattresses. It may become a trend. No more chases!

 

[Midwest]

And surface pattresses. It may become a trend. No more chases!

With Bluetooth mains supply connection, Happy Days

 

[David M]

Wot about the old fashion method, screws & rawplugs

Great if there is something to fix to

Ah... you live in Oxfordshire, you have posh bricks round your way, we just have the cheap old crumbly ones lol!

 

[Midwest]

Great if there is something to fix to

Ah... you live in Oxfordshire, you have posh bricks round your way, we just have the cheap old crumbly ones lol!

I got some old bricks I can lend you, but they're propping up the Ford Escort in the front garden at the moment.

 

[David M]

I got some old bricks I can lend you, but they're propping up the Ford Escort in the front garden at the moment.

Ford Escort in Oxfordshire?? is that not like swearing? lol

 

[Midwest]

Naaah MINI is

 

[telectrix]

I got some old bricks I can lend you, but they're propping up the Ford Escort in the front garden at the moment.

don't look at me. just because i'm a scouser, i ain't nicked your wheels.

 

[rolyberkin]

I only have to look at a wall and it just disintegrates, my mate who I work with is a bit of a nancy and can get a box sized hole out with about 2mm all round the sides (guess what he gets to do!

 

[NDG Elecs]

be less aggressive ?????????????

Yep, I agree with the above a bit. However, to the OP I do know what you mean, and SDS drills can be a bit brutal. I find if the brick starts breaking up trying to fit a 25mm box, then I go more gently at it to try and get a deeper box in.

If the brick is completely knacked I normally opt for sand cement. I do like the sound of using rapid set though.

 

[DPG]

Agree with one of the above posts - decent tile adhesive is good stuff. Daz