Building delays frustrate officials in Greenville Cracks in concrete floor hinder completion of public works garageDIANA BOWLEYOF THE NEWS STAFF
How to find voids and settlement under a concrete slab: drag a chain? It sounded a bit goofy when we heard this, but we tried it and it works: we use a heavy chain, dragging it across the garage floor andlistening to changes inthe sound it produces, to find areas of significant soil...
had an improper concrete mix, or if the wall froze during set-up. Seeing the second image below suggests we have no horizontal steel reinforcement in the wall.
Screwing into concrete involves drilling a hole for the anchor and then inserting the screw. Follow these steps for a crack-free screwing process: Drill the Hole Use the hammer drill as described in the previous section, being cautious not to make the hole too deep. ...
Repairing cracks in concrete is not as difficult as it might seem to someone who has never done it before. It basically involves cleaning out the cracks, then using either a concrete patching compound or concrete caulk to fill the space. For larger cracks, a little sand can be added before...
Guide to identifying & evaluating different types of concrete or masonry foundation, wall or floor cracks in buildings: this article series describes how to recognize and diagnose various types of foundation failure or damage, such as foundation cracks, masonry foundation crack patterns, and moving, ...
Usually the very bottom of a building wall will not have moved inwards, particularly if a concrete floor has been poured against the foundation. The entire building floor slab is acting as an "anchor" to hold the bottom of the foundation wall in place. So we take the distance between the...
Our photo at left shows a diagonal, though nearly vertical, crack in a concrete block chimney. You should suspect that this chimney was built with an inadequate footing. Splits in a chimney like this are very dangerous, risking flue gas leaks and fires. In extreme cases there is real risk...