Non-destructive determination of concrete thickness
Non-destructive determination of concrete thickness
(OP)
Does anyone know of a non-destrucitve means of determining the thickness of a concrete slab? So far the only means if have found is Ground Penerating Radar (GPR). Is GPR difficult to used and/or interpret? Thanks






RE: Non-destructive determination of concrete thickness
One of the major obstacles in using GPR on concrete slabs is presence of reinforcement.
Contact any GPR lab and ask them directly.
Good luck
RE: Non-destructive determination of concrete thickness
RE: Non-destructive determination of concrete thickness
RE: Non-destructive determination of concrete thickness
RE: Non-destructive determination of concrete thickness
http://www.olsoninstruments.com/ctg/ctg.htm
Good luck
sghvib
RE: Non-destructive determination of concrete thickness
As I was told when I was in college by my professors, you will need to use your "Engineering Judgment". Boy, were they ever right. I think we all do that few times day.
Not that I am opposed to other methods. I think it all depends on the situation. I agree that expense is an issue. However, if you have a suspicious situation and people safety and client operations and business is on the line, do not go for the cheapest! I have problem with engineers’ who sometimes let economics, or non-qualified sources, blare their sound engineering judgment. Imagine this, you are on surgery table; do you want your surgeon using the cheapest tools and tests!
What is nice a bout GPR you can get 100% coverage of the floor area! It does not take long to scan and the scan width is limited by probe size. The one that I have seen is about 8 - 10 inches wide and the machine travel "like a lawn lower passes and the thermal paper is printed real time. The printout needs to be read and translated to useful data.
Drilling and may give a true picture for very localized.
Use your engineering judgment