The last 3 brick houses I've lived in were all falling apart like this but -ONLY- in the area where the large plastic wheeled bins were parked.
Is it possible the bins themselves are somehow causing this? Wind? Static electricity?
>>7700078
shit batch of mortar,
You're essentially makin a Venturi between the wall and the can. that velocity spike is compounded by the fact that drag force (acting on the granular mortar) is a second order force so it increases with velocity^2
>>7700100
Yeah, probably something biological. Mold maybe?
>>7700166
This.
Also, that shit looks like it's about to go for a walk, does no one get their fucking walls repointed anymore? Have all the Old Ones died out and taken their knowledge with them?
>>7700078
I would say that that bins are blocking the area behind them from drying out when it gets wet and the moisture is degrading the mortar.
Ok another /x/er /pol/ack thinking they've discovered something science hasn't in the history of man.
Confirmed snowflake.
You may see this a bit. Copied it to save time
Moisture. Either evaporation or splash.
My guess (and that is all it is): mortar is being attacked by ammonia vapours from the contents of the bin. A long long time ago in a galaxy far away I was a garbage man and I can assure you that the small can be ferocious. Parts of this is ammonia.
