The concrete thing is mostly that residential concrete companies don't want to do what it takes to produce a good product. They want to frame pour and strip in like 6 hours so they can get like 2-3 units a day done. To do that you gotta use a ton of accelerant. Makes for shitty concrete and you can't do it in the winter because the frames have to be insulated so the curing concrete retains it's heat. Most commercial jobs work just fine in the winter, they just insulate and use blankets or warm water flood curing.
The concrete thing is mostly that residential concrete companies don't want to do what it takes to produce a good product. They want to frame pour and strip in like 6 hours so they can get like 2-3 units a day done. To do that you gotta use a ton of accelerant. Makes for shitty concrete and you can't do it in the winter because the frames have to be insulated so the curing concrete retains it's heat. Most commercial jobs work just fine in the winter, they just insulate and use blankets or warm water flood curing.