I am building my own home. My basement floor developed several cracks within 1-2 hours of being poured. Temperature was in the 60’s and zip strips were utilized in the floor. The contractor claims shrinkage cracks are normal. I agree with that statement however there are numerous cracks in all sections of the basement. I was planning on finishing the basement but have decided to wait and monitor the floor for a year or so. The photos show the common size of the cracks, however there are even more not shown in the photos.
Would you accept this as normal from a contractor? I am not sure if this is worth pursuing in court or not. I also included a photo of the floor about 3 days after the pour. It now appears more uniform in color.
Here are some photos.