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Title: Testing of concrete by laser ablation

A method of testing concrete in a structure in situ, by: directing a succession of pulses of laser radiation at a point on the structure so that each pulse effects removal of a quantity of concrete and transfers energy to the concrete; detecting a characteristic of energy which has been transferred to the concrete; determining, separately from the detecting step, the total quantity of concrete removed by the succession of pulses; and calculating a property of the concrete on the basis of the detected energy characteristic and the determined total quantity of concrete removed.
Inventors:
 [1];  [2];  [2];  [2];  [2]
  1. (Benton City, WA)
  2. (Kennewick, WA)
Issue Date:
OSTI Identifier:
870777
Assignee:
Westinghouse Hanford Company (Richland, WA) RLO
Patent Number(s):
US 5592283
Contract Number:
AC06-87RL10930
Research Org:
Westinghouse Hanford Co
Country of Publication:
United States
Language:
English
Subject:
testing; concrete; laser; ablation; method; structure; situ; directing; succession; pulses; radiation; pulse; effects; removal; quantity; transfers; energy; detecting; characteristic; transferred; determining; separately; step; total; removed; calculating; property; basis; detected; determined; laser radiation; laser ablation; total quantity; /356/73/