Help identifing this block and best fixings to use

[600rob]

Are the blocks used on this wall thermalite?

DSC_2088

• 600rob
• 31 May 2019

Looking for the best type of anchor to support drill into this and support heavy items. (wall hung toilet?
Was thinking shield antchors or through bolts?
Is there anything more suitable for this type of thing?
Thanks

 

[23vc]

Not thermalites, yes through bolts or similar

 

[600rob]

Not thermalites, yes through bolts or similar

Cool thanks.

Whats it called if its not thermalite?

 

[23vc]

Some kind of aggregate block, thermalites have more of a closed face often with some wavy lines scored on em. And are soft like an aero. Yours may still be pretty lightweight/soft, but they’re not what’s normally called thermalite.

 

[600rob]

Cheers for that

I had noticed the difference look on thermalites with the wavy lines etc. Was not sure if there was any other difference between them other than the look

 

[Harry Bloomfield]

Through bolts, plus something to spread the load at the back of the wall, maybe a metal plate?

 

[John D v2.0]

not wishing to derail things but wall hung toilet should be hung off a proprietary frame surely? if not I'd be just using normal rawlplugs and 100mm screws to screw a couple of lengths of timber to the wall, and strapping the loo to that. As soon as you lengthen the timber it's a longer lever so the forces will be much more reasonable.

 

[Leofric]

they are lightweight aggregate blocks

 

[600rob]

not wishing to derail things but wall hung toilet should be hung off a proprietary frame surely? if not I'd be just using normal rawlplugs and 100mm screws to screw a couple of lengths of timber to the wall, and strapping the loo to that. As soon as you lengthen the timber it's a longer lever so the forces will be much more reasonable.

Ahh yes i forgot to mention that there is a frame for w the wc. The wc bolts to the frame and the frame bolts to the wall and floor

they are lightweight aggregate blocks

Thanks. i thought any type of expanding bolt might cause damage to the block or possibly crack it

 

[Nige F]

Ahh yes i forgot to mention that there is a frame for w the wc. The wc bolts to the frame and the frame bolts to the wall and floor



Thanks. i thought any type of expanding bolt might cause damage to the block or possibly crack it

The floor will take the weight - the wall just needs a plug and screw - Fischer nylon plugs are good. If the dust coming from the drilled block is black - it's a cinder block. Is your house pre 60's ?

 

[bernardgreen]

For what is worth chemical resin anchors and studding make secure anchor points in almost all type of block, brick or stone walls that are too soft for other type of fixings to hold reliably.

One source of the two part resin is LINK

Down side is you have to use the correct concentric gun LINK which is expensive for a one off use.

You only get one shot at the job so ensure the bolts ar in the right place before the resin hardens, ( on a hot day that can be less than 10 minutes )

 

[John D v2.0]

Ahh yes i forgot to mention that there is a frame for w the wc. The wc bolts to the frame and the frame bolts to the wall and floor

Yes nige f is spot on some decent wall plugs should be enough due to the low forces. But again, if you're concerned, get a sheet of decent thick ply and fix that to the wall with more fixings, then fix the loo to the ply.

 

[Leofric]

If the dust coming from the drilled block is black - it's a cinder block.

Don't you think they look like lightweight aggregate concrete blocks

 

[Nige F]

Yours is probably the correct name for cinder blocks.