Repairing Cracks in Concrete: 7 Minutes is All You Need
I recently did a small project that as you'll discover is pretty darn easy and can stop cracks from turning into bigger headaches.
If you have small horizontal cracks you can use concrete filler to seal them tight. Larger cracks should use polyfoam tubing as a filler then concrete filler on top-kinda like adding ketchup to a hot dog :).
Click on this link because I think you'll benefit from the tips as well as my headless home repair tutor video (hey, it's tough producing these short movies by yourself and plus, we're getting close to Halloween anyway) http://www.homerepairtutor.com/repairing-cra...