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Title:
CONCRETE SHRINKAGE CRACK TEST APPARATUS
Document Type and Number:
Japanese Patent JP3955247
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a concrete shrinkage crack test apparatus capable of adjusting and measuring a strain and a stress varying with elapse of time after concrete is deposited while following the variation thereof.
SOLUTION: This concrete shrinkage crack test apparatus 1 comprises an apparatus body having a load applying means 5 applying a load to a concrete specimen 2, a stress measuring means 6 capable of measuring a stress occurred in the specimen, a strain measuring means 7 capable of measuring the strain of the specimen 2, and a holding frame 8 fixing the load applying means 5, the stress measuring means 5, and the strain measuring means 7 together with the specimen 2 and a control device 4 connected to the stress measuring means 6 and the strain measuring means 7 and controlling output values from the load applying means 5 according to the stress values produced in the specimen 2 or the strain values of the specimen 2. The strain measuring means 7 is installed on the outer side of the specimen 2.


Inventors:
Yoshiaki Sato
Tadao Irifune
Kosuke Tanno
Application Number:
JP2002000255709
Publication Date:
August 08, 2007
Filing Date:
August 30, 2002
Export Citation:
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Assignee:
Yoshiaki Sato
Marutani Testing Co., Ltd.
Tokyo Sokki Research Institute Co., Ltd.
International Classes:
G01L1/22; G01N3/00; G01B21/32; G01N3/08; G01N3/32; G01N33/38; (IPC1-7): G01N3/00; G01B21/32; G01L1/22; G01N3/08; G01N3/32; G01N33/38
Domestic Patent References:
JP3048745A
JP11083709A
JP2134536A
JP62254036A
JP2002005802A
JP62299741A
JP59216035A
JP3006548U
JP6049983U
JP8178813A
Foreign References:
Attorney, Agent or Firm:
Hisashi Kato