allseason Posted December 23, 2014 Report Share Posted December 23, 2014 I was in a commercial/warehouse today, concrete block and brick. One section date unknown but the owner has been in business 70 yrs. The other half built in the 1970's. The block walls in the older section have a lot of small divets, most appear to be from the interior face of the block, not from fasteners or mechanical damage for the most part. I have seen in some old block where iron in the aggregate will rust and pop small spots. Any ideas? This side of the building was also the victim of a fire at some point, likely prior to the 1970's addition as that is unscathed. Could that have affected the block? Otherwise the walls are plumb and solid, very few cracks. Click to Enlarge 44.95 KB Click to Enlarge 48.91 KB Quote Link to comment Share on other sites More sharing options...
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