Filling cavity below DPC

[sambotc]

Whats the purpose of this exactly? I see that you should slope it away to allow water to run away from the internal wall, but surely it would be better if it just dropped further and soaked away well below the DPC?

Thanks in advance

Sam

 

[noseall]

Prevents the soil pressure caving the walls in.

 

[sambotc]

Could it not be filled with hardcore instead then?

 

[John D v2.0]

Yes it's only a weak mix anyway, I suppose it's less likely to go somewhere if it's got cement in it.

 

[noseall]

Could it not be filled with hardcore instead then?

Rodents hate concrete that's why we use it.

 

[John D v2.0]

I bet they love those celcon blocks, just like rice crispy cakes!

 

[^woody^]

Could it not be filled with hardcore instead then?

You'll have problems with the wacker.