2 post lift install -- documented

I have a condo with poured concrete basement walls. They are cracked and required repair. This is what I have learned by scouring the internet and talking to a few contractors. My condo foundation was poured in April (windy) and the floor shortly after. High strength concrete ( high psi rating) is mix with less water. More water the weaker it will be. Less water stronger it will be and also it sets and cures faster causing more heat. This expansion and contraction causes cracks. One contractor showed me a step on a walkway he poured that exploded while setting cause it got too hot. The trick is to keep it as cool as possible while setting and hydrated while curing which takes about 3 weeks. In San Francisco they fill foundations with water after the set till its cured for earthquake strength. Also my floor has voids in it from poor compacting the substrate before the pour and maybe ice. Both in the basement and garage, I can stomp on the floor and hear hollow if places. It’s only 4 inch thick 300 psi slab. It has not cracked or broken even in the garage with a car parked on top. Its a strong slab and its no joke.