JPS57165747A - Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar - Google Patents

Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar

Info

Publication number
JPS57165747A
JPS57165747A JP56050539A JP5053981A JPS57165747A JP S57165747 A JPS57165747 A JP S57165747A JP 56050539 A JP56050539 A JP 56050539A JP 5053981 A JP5053981 A JP 5053981A JP S57165747 A JPS57165747 A JP S57165747A
Authority
JP
Japan
Prior art keywords
metal fiber
mixing rate
electric
field intensity
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56050539A
Other languages
Japanese (ja)
Inventor
Hiroshi Kiyokawa
Masayoshi Katsuki
Masaru Teraoka
Seiichi Yokosuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujita Corp
Fujita Kogyo KK
Original Assignee
Fujita Corp
Fujita Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujita Corp, Fujita Kogyo KK filed Critical Fujita Corp
Priority to JP56050539A priority Critical patent/JPS57165747A/en
Publication of JPS57165747A publication Critical patent/JPS57165747A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383—Concrete or cement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Piles And Underground Anchors (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To enable easy detection of the mixing rate of metal fibers at a site of works by preparing beforehand an electric-field intensity curve of a standard body to be detected which has a variety of mixing rate and thickness. CONSTITUTION:By meansuring an electric-field intensity at each measuring point of a standard body to be detected of metal fiber concrete or mortar having a variety of metal fiber mixing rate and member thickness in a laboratory or the like, an electric-field intensity curve of the standard body to be detected is prepared beforehand. Next, a body to be detected is prepared at a site of works of required metal fiber mixed concrete or mortar, the electric-field intensity of the body at every measuring point thereon is measured, and an electric-field intensity curve is prepared therefrom. This electric-field intensity curve and the electric-field intensity curve of the standard body to be detected are compared with each other and thereby the metal fiber mixing rate and the ununiformity thereof are estimated. In this way, the mixing rate of metal fibers can be detected with ease at the site of works.
JP56050539A 1981-04-06 1981-04-06 Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar Pending JPS57165747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56050539A JPS57165747A (en) 1981-04-06 1981-04-06 Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56050539A JPS57165747A (en) 1981-04-06 1981-04-06 Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar

Publications (1)

Publication Number Publication Date
JPS57165747A true JPS57165747A (en) 1982-10-12

Family

ID=12861806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56050539A Pending JPS57165747A (en) 1981-04-06 1981-04-06 Electromagnetic estimating method for metal fiber mixing rate in metal fiber mixed concrete and mortar

Country Status (1)

Country Link
JP (1) JPS57165747A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297426U (en) * 1989-01-24 1990-08-02
WO1991011706A1 (en) * 1990-02-05 1991-08-08 Dipole Electronics Co. Ltd. Detector for conductive substance mixed in string-like material
JP2010204055A (en) * 2009-03-05 2010-09-16 Toyama Prefecture Concrete internal inspection apparatus
CZ304173B6 (en) * 2012-11-22 2013-12-04 Ceské vysoké ucení technické v Praze - fakulta stavební Method of testing homogeneity of steel-fiber-reinforced concrete on ready made reinforced fiber concrete structures

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154366A (en) * 1978-03-25 1979-12-05 Philips Nv Method and device for checking internal construction of body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154366A (en) * 1978-03-25 1979-12-05 Philips Nv Method and device for checking internal construction of body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297426U (en) * 1989-01-24 1990-08-02
WO1991011706A1 (en) * 1990-02-05 1991-08-08 Dipole Electronics Co. Ltd. Detector for conductive substance mixed in string-like material
US5194815A (en) * 1990-02-05 1993-03-16 Dipole Electronics Co., Ltd. Detecting apparatus of conductive material contained in stringy material
JP2010204055A (en) * 2009-03-05 2010-09-16 Toyama Prefecture Concrete internal inspection apparatus
CZ304173B6 (en) * 2012-11-22 2013-12-04 Ceské vysoké ucení technické v Praze - fakulta stavební Method of testing homogeneity of steel-fiber-reinforced concrete on ready made reinforced fiber concrete structures

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