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2008-08-28 Construction & Contractors - Vibration Monitoring: I can see why you are confused about the vibration specification. From what you sent it looks like they have two criteria, an acceleration-based criterion over the range of 5-15 Hz, and a sound-based...
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2008-08-27 Construction & Contractors - Travertine on pool deck: The only problem is the freeze/thaw cycle where you live (I am assuming northern NJ). If water gets under the Travertine and into the sand, you could have some movement of the stone. Ask your contractor...
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2008-08-24 Construction & Contractors - Retaining wall: I don't know that I have ever heard of a wooden retaining wall. I am familiar with soldier pile walls that are composed of vertical steel (rarely concrete) beams into which are set timber boards (called...
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2008-08-21 Construction & Contractors - slab pitch: Sorry it took so long to answer this question it apparently did not hit my e-mail box. The pictures only show the water draining at the edge and that appears to have sufficient slope. You stated your...
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2008-08-20 Construction & Contractors - Rock Removal: Breaking rock always involves the input of energy sufficient to overcome whatever bonds are holding the rock together. The question reduces to how to introduce this energy in the most efficient manner...
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