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Stone pillar cracking
6

Stone pillar cracking

RE: Stone pillar cracking

Well since they are over 170 years old - they look pretty good to me.

I am sure it is environmental - acid rain, freeze thaw, etc.

 

RE: Stone pillar cracking

Water freeze/thaw.  (Hint, look at bottom of eave)

RE: Stone pillar cracking

That looked like cast-in-place concrete that wasn't that old and it looks like shrinkage cracks.  Was there a repair band done on the column at some time?

RE: Stone pillar cracking

They don't look like shrinkage cracks to me. I find it interesting the section above and below are not cracked. I had something similar looking on a 50 year old building. At each location where this cracking occurred there were drainage problems nearby. I could only assume the freeze/ thaw cycle caused it. However if there is rebar or wire in the column, then corrosion due to carbonation can cause that kind of cracking. That is common in older parking deck structures.  

www.idecharlotte.com

RE: Stone pillar cracking

Is it just me or does the pattern of the cracking looks similar to some reinforcing or mesh close to the surface? If the building is that old and it has just recently occurred, I would suspect carbonation.  

RE: Stone pillar cracking

It has been very cold in Britain in the last few weeks, increasing the possibility of freeze/thaw.  Are the cracks recent?

RE: Stone pillar cracking

(OP)
yes the cracks are recent (last few years), i beleive it may be from the repair that was done to the building after an old victorian extension was demolished. Many thanks!

RE: Stone pillar cracking

OP refers to stone pillar.  If it is limestone rather than concrete, weathering deterioration is probably just due to differing quality of original stone.

RE: Stone pillar cracking

(OP)
i am also debating with my collegue over the deterioration of the eaves, do you believe it is a result of freeze/thaw damage or from suplhate attack from acid rain? i personall think it may be a combination of both.

Any ideas?

RE: Stone pillar cracking

I agree with Ron. To me, the crack pattern looks like a concrete repair that was made with either the wrong patching material or the patch was not properly installed.

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