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, ...

Q. I have a cement slab for a front porch and it is badly cracked. I would like to replace it with a composite deck. The problem is that when it rains, the water will run through the joints to the ...

Most slabs-on-ground are unreinforced or nominally reinforced for crack-width control. When positioned in the upper or top portion of the slab thickness, steel reinforcement limits the widths of ...

The Post-Tensioning Institute (PTI), Phoenix, AZ – a non-profit organization for the advancement of post-tensioned, pre-stressed concrete design and construction – now offers the 2008 supplement to ...

SYRACUSE, N.Y. -- In recent years, garage floors throughout Central New York have collapsed suddenly, leaving homeowners perplexed, frustrated and, sometimes, in danger. Those collapses are always a ...