Repair cracks in aerated concrete

[Trebyggare]

How do you repair a crack in aerated concrete when it involves a load-bearing structure? If you repair with repair mortar, a new crack easily forms between the repair mortar and the aerated concrete. Can you reinforce in some way? Tips are gratefully received.

 

[jawen]

Crack in LB.................................unusual ;-)
Let the house "settle completely" and then fill the crack with regular putty; if it moves even more, then move.

Regards, jawen

 

[Öhman ST]

Shouldn't one just use fiberglass tape and regular lightweight hand putty?

If it's a smaller crack, maybe one could use plastic padding's superspackel, as it's somewhat elastic and doesn't crack so easily.