A footing trench ranges from six inches ... the plastic tubing is placed on top of the wire mesh. Once the tubing is pressure-tested, the four-to-six-inch concrete slab is poured.

Q: I read your column regularly even if the problem you discuss does not directly affect me. Your comments are always interesting. I'm writing you to ask if you know if it is possible to ...

Q: I disagree with my builder about what will happen under the garage slab of my new home. There is a trench around the inside on all four walls where they had to dig to install the foundation.

You see, if water does enter the cement block walls from the exterior, it may not have a way of escaping into the floating slab trench around the interior perimeter of the basement. Weep holes ...

SHERMAN OAKS — Two men were injured, one of them critically, when a slab of concrete fell on them while they were working Tuesday afternoon in a trench at a construction site in Sherman Oaks.

Another problem is that mesh does not prevent or minimize cracking -- it simply holds cracks, that have already occurred, together." Many factors can alter a slab's ability to resist cracking ...

Because the bucket is wider than the excavator stick, it can rip the sides of the trench, not limiting the depth. SHARC Slab and Skeleton Multi-Ripper Buckets work like trenchers, but use the ...

By Ed Shanahan and Patrick McGeehan Two construction workers killed in a trench collapse at Kennedy International Airport in April died while removing soil from beneath a concrete slab that the ...