JPS5726732A - Measuring method for water-cement ratio of concrete which has not set yet - Google Patents
Measuring method for water-cement ratio of concrete which has not set yetInfo
- Publication number
- JPS5726732A JPS5726732A JP10119480A JP10119480A JPS5726732A JP S5726732 A JPS5726732 A JP S5726732A JP 10119480 A JP10119480 A JP 10119480A JP 10119480 A JP10119480 A JP 10119480A JP S5726732 A JPS5726732 A JP S5726732A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- water
- cement ratio
- legs
- gradient
- 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.)
- Granted
Links
- 239000004568 cement Substances 0.000 title abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 3
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)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE:To make the gradient of amplitude displacement larger with respect to a change in a water-cement ratio by vibrating sensing plates at the driving frequency coinciding with the natural frequency of concrete which has not ser yet. CONSTITUTION:The output of an oscillator 8 which oscillates the frequency equal to the natural frequency of concrete which has not set yet is set at the output corresponding to the consistency of the concrete by an ammeter 10 at an amplifier 9, and drives an electromagnetic driving source 6. On the other hand, sensing plates 5 of a biconvex lens shape of which the top ends of legs 4 are fixed to a pair of leaf springs 3 mounted to both sides of a body 1 of a measuring machine and which are fixed to the leading ends of the legs 4 are excited by the source 6 and vibrate to the right and left. The signals from a pickup 7 are inputted via an amplifier 11 to an indicator 12, by which the rates of vibration displacements are displayed. Thereby, the gradient of amplitude displacements is increased and the water-cement ratio is measured accurately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10119480A JPS5726732A (en) | 1980-07-25 | 1980-07-25 | Measuring method for water-cement ratio of concrete which has not set yet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10119480A JPS5726732A (en) | 1980-07-25 | 1980-07-25 | Measuring method for water-cement ratio of concrete which has not set yet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5726732A true JPS5726732A (en) | 1982-02-12 |
JPH0121895B2 JPH0121895B2 (en) | 1989-04-24 |
Family
ID=14294133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10119480A Granted JPS5726732A (en) | 1980-07-25 | 1980-07-25 | Measuring method for water-cement ratio of concrete which has not set yet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726732A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6025348A (en) * | 1998-04-30 | 2000-02-15 | Kao Corporation | Oil and fat composition containing phytosterol |
JP2016217740A (en) * | 2015-05-14 | 2016-12-22 | 株式会社安藤・間 | Method for determining workability of concrete |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524626A (en) * | 1978-08-11 | 1980-02-21 | Chichibu Cement Co Ltd | Method and apparatus for measuring composition ratio of flowing fluid |
-
1980
- 1980-07-25 JP JP10119480A patent/JPS5726732A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524626A (en) * | 1978-08-11 | 1980-02-21 | Chichibu Cement Co Ltd | Method and apparatus for measuring composition ratio of flowing fluid |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6025348A (en) * | 1998-04-30 | 2000-02-15 | Kao Corporation | Oil and fat composition containing phytosterol |
JP2016217740A (en) * | 2015-05-14 | 2016-12-22 | 株式会社安藤・間 | Method for determining workability of concrete |
Also Published As
Publication number | Publication date |
---|---|
JPH0121895B2 (en) | 1989-04-24 |
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