Are you a subscriber but don’t have an online account?

Register for full online access.

 
 
 
 

Other stories by Bill Palmer

  • Better Concrete Garage Floors

    Ten tips for pouring stronger, crack-free concrete slabs.

  • Best Mix for Pumped Concrete

    Plans for an infill project call for a poured stem-wall foundation, but the urban site has limited access for a regular concrete truck. A pumper truck would be ideal, but I'm concerned that the pumped mix won't provide the required 4,000-psi concrete. Is this a legitimate concern?

  • Stainless Steel and Rebar

    Q: Can stainless steel tie wire be used with standard rebar?

  • Tree Roots and Foundation Cracks

    Can the roots of a tree actually dry out the soil beneath a foundation enough to cause the concrete to crack?

  • How to Build a Climbing Wall

    Q: I'm planning an addition for a client who wants to turn a 22-foot-high wall into a climbing wall. He would like this wall to closely resemble stone, but he doesn't want it to cost as much as natural stone. I've poured a lot of flat concrete, but I have never built something like this - so I...

  • Concrete Without Steel?

    Q: Does the addition of fibers eliminate the need for steel in a concrete-slab basement floor?

  • Do Precast Foundation Walls Need Waterproofing?

    Q: Are precast concrete foundation walls subject to the same dampproofing or waterproofing requirements as cast-in-place and block foundations? I've heard that because these walls are made of a high-strength concrete that's virtually nonporous and impervious to water, they don't require extra...

  • Fixing Cracks in Concrete

    Q: What is the best way to seal hairline cracks in a concrete driveway? The products I've found at home centers seem too thick, and my client is concerned that the cracks will get worse during the winter months.

  • Sealing a Garage Floor

    Q: A customer asked me about sealing a brand-new garage slab to keep oil drips from penetrating the concrete, in case she decides to have the slab finish-painted in the future. Is this necessary? What product should we use?

  • Q&A: A Use for Recycled Concrete

    Q. One of the contractors I'm interviewing to install a driveway surfaced with interlocking concrete pavers has suggested using recycled concrete rather than processed stone as a base material. He claims he's used it already on several driveways and that