Concrete filled brick retaining - wall max height

[demayeng]

Hi,

I've been told there is a maximum height of 1100mm (3ft something) on brick retaining walls (2 brick skins with a 100mm concrete filled cavity).

I think it has to do with deflection, however I'm not sure.

Does anyone else know why this is and if it's true?

I guess there is an issue with the wet concrete applying too much pressure over a certain height, although I imagine you could solve that with a slow pour rate or multiple pours.

I assume also with this type of wall that because you don't have the 'clean-out blocks' of concrete block walls, so you may get dodgy corefill at the bottom... Maybe that is why the height is limited..

Any thoughts..?

Thanks

 

[HazeyMatt]

hey just came across this post and realised i have a questions about this topic.
would a double skinned brick retaining wall be able to support as high as 3m. and also what would be a recommended cavity width?