Gerard, You are fortunate that you don't have any cracks, yet. That's nice. I know several people who plan to live forever and so far so good.

I was really happy with my mom's 24x26 garage slab as it was crack free too. It was crack free for over 3 years but has a crack right down the middle now. Of course with our good use of rebar the crack will remain cosmetic and never open up or cause a structural problem. My 175 linear feet of cast concrete basement walls 10 ft high are crack free after almost a year. unfortunatley I don't have a single slab anywhere that is crack free except sections of porch slab that had control joints sawed into them. Some of the control joiints have cracks (doing there job) and some don't, yet. (Emphasis on YET)

[img]/forums/images/icons/smile.gif[/img] Pat [img]/forums/images/icons/smile.gif[/img]