Title:
NONDESTRUCTIVE COMPRESSION TEST METHOD AND DEVICE FOR CONCRETE
Document Type and Number:
Japanese Patent JP3917359
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To easily obtain a highly reliable rest result without damaging structure due to member loss.
SOLUTION: A strike point P, on an extension line for connecting detection points Q1 and Q2 on a concrete surface 20, is struck to generate elastic waves; vibration is detected at the detection points Q1 and Q2; and at the same time, the detection time difference T is calculated and detected, speed V of the elastic wave is calculated, based on the time difference T and an interval L between the detection points Q1 and Q2, and compression speed fc of concrete is calculated and outputted based on the speed V.
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Inventors:
Tatsumi, Eiji
Application Number:
JP2000000328516
Publication Date:
February 16, 2007
Filing Date:
October 27, 2000
Export Citation:
Assignee:
MITSUI CONSTR CO LTD
International Classes:
G01N29/00; G01M7/08; G01N3/00; G01N3/30; G01N33/38; G01N29/00; G01M7/00; G01N3/00; G01N3/30; G01N33/38; (IPC1-7): G01N29/18; G01M7/08; G01N3/00; G01N3/30; G01N33/38
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