Q: My 2010 Chevy pickup truck has been a perfect truck for almost 12 years now. The last time it went in for tires and an oil change I was told it was going to need ball joints, and the ball joints ...

Contraction joints (sometimes called control joints) are used in unreinforced and lightly reinforced slabs-on-ground to minimize random cracking. By creating straight-line weakened-planes in concrete, ...