JPS5781530A - Placement work of underwater concrete and form therefor - Google Patents

Placement work of underwater concrete and form therefor

Info

Publication number
JPS5781530A
JPS5781530A JP15544080A JP15544080A JPS5781530A JP S5781530 A JPS5781530 A JP S5781530A JP 15544080 A JP15544080 A JP 15544080A JP 15544080 A JP15544080 A JP 15544080A JP S5781530 A JPS5781530 A JP S5781530A
Authority
JP
Japan
Prior art keywords
water
cement
place
fresh
thickening agent
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
Application number
JP15544080A
Other languages
Japanese (ja)
Other versions
JPH0427332B2 (en
Inventor
Chikanobu Ishida
Akio Misaki
Akinori Suenaga
Atsushi Sakurayama
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.)
Kajima Corp
Mitsui Petrochemical Industries Ltd
Original Assignee
Kajima Corp
Mitsui Petrochemical Industries Ltd
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 Kajima Corp, Mitsui Petrochemical Industries Ltd filed Critical Kajima Corp
Priority to JP15544080A priority Critical patent/JPS5781530A/en
Publication of JPS5781530A publication Critical patent/JPS5781530A/en
Publication of JPH0427332B2 publication Critical patent/JPH0427332B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Revetment (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

PURPOSE: To prevent the occurrence of turbulent flow in a form for constructing concrete structures having a high strength under water by a method in which a fresh concrete consisting of 0.2W4.0wt% thickening agent and cement is prepared and then placed into a water-permeable form provided in water from a place higher than a placement place.
CONSTITUTION: A form consisting of a metal netting 2 laid on the skeleton 1 of a steel mold is placed on the bottom 3 of water. A thickening agent such that when 400cc of a cement paste of a water-cement ratio of 60% is flowed into a 5×40cm cylindrical container filled with 400cc of water from the surface of water and then allowed to stand for hardening, and then sampling is made from the respective 5cm range of the upper and lower parts of the hardened cement and measured for the specific gravities of each, the difference in specific gravity between both the samples becomes 0.1 or less is added to fresh concrete in an amount of 0.2W4.0% on the weight of cement. Then, the fresh cement is placed into a water-permeable form in water from a place higher than a placement place.
COPYRIGHT: (C)1982,JPO&Japio
JP15544080A 1980-11-05 1980-11-05 Placement work of underwater concrete and form therefor Granted JPS5781530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15544080A JPS5781530A (en) 1980-11-05 1980-11-05 Placement work of underwater concrete and form therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15544080A JPS5781530A (en) 1980-11-05 1980-11-05 Placement work of underwater concrete and form therefor

Publications (2)

Publication Number Publication Date
JPS5781530A true JPS5781530A (en) 1982-05-21
JPH0427332B2 JPH0427332B2 (en) 1992-05-11

Family

ID=15606071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15544080A Granted JPS5781530A (en) 1980-11-05 1980-11-05 Placement work of underwater concrete and form therefor

Country Status (1)

Country Link
JP (1) JPS5781530A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941524A (en) * 1982-09-01 1984-03-07 Tokuyama Soda Co Ltd Flooring work for underground structure
JPS59131547A (en) * 1983-01-19 1984-07-28 ダイセル化学工業株式会社 Cement composition for underwater construction
JPS6065755A (en) * 1983-09-20 1985-04-15 電気化学工業株式会社 Underwater concrete composition
JPS60115706A (en) * 1983-11-25 1985-06-22 Tousen Koken Kk Construction of underwater concrete structure
JPS616163A (en) * 1984-06-20 1986-01-11 日曹マスタ−ビルダ−ズ株式会社 Method of decreasing fluidity reduction of cement composition
JPS61158850A (en) * 1984-12-28 1986-07-18 ダイセル化学工業株式会社 Cement composition for underwater construction
JPS61286416A (en) * 1985-06-13 1986-12-17 Kajima Corp Underwater concreting
JPS62129422A (en) * 1985-11-29 1987-06-11 Nippon Kaijo Koji Kk Corrosion-proof lining method for underwater steel pipe pile
JPS6311553A (en) * 1986-06-30 1988-01-19 日本鋼管株式会社 Cement composition for underwater concrete
JPS6433043A (en) * 1987-07-30 1989-02-02 Sumitomo Cement Co Special underwater concrete composition
JP2010059687A (en) * 2008-09-03 2010-03-18 Nagoya Univ Corrosion prevention lining method of pillar member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840233A (en) * 1971-09-23 1973-06-13
DE2326647A1 (en) * 1973-05-25 1974-12-12 Sicotan Kunststoff Constructional material for use under water - polymer added to cement gives high water and erosion resistance
JPS5242605A (en) * 1975-09-30 1977-04-02 Sekisui Chemical Co Ltd Form for concrete foundation
JPS5532820A (en) * 1978-08-30 1980-03-07 Nippon Cement Co Ltd Protection sheath for underwater pile and protection method for underwater pile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840233A (en) * 1971-09-23 1973-06-13
DE2326647A1 (en) * 1973-05-25 1974-12-12 Sicotan Kunststoff Constructional material for use under water - polymer added to cement gives high water and erosion resistance
JPS5242605A (en) * 1975-09-30 1977-04-02 Sekisui Chemical Co Ltd Form for concrete foundation
JPS5532820A (en) * 1978-08-30 1980-03-07 Nippon Cement Co Ltd Protection sheath for underwater pile and protection method for underwater pile

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941524A (en) * 1982-09-01 1984-03-07 Tokuyama Soda Co Ltd Flooring work for underground structure
JPS59131547A (en) * 1983-01-19 1984-07-28 ダイセル化学工業株式会社 Cement composition for underwater construction
JPS6065755A (en) * 1983-09-20 1985-04-15 電気化学工業株式会社 Underwater concrete composition
JPH0443864B2 (en) * 1983-09-20 1992-07-17 Denki Kagaku Kogyo Kk
JPS60115706A (en) * 1983-11-25 1985-06-22 Tousen Koken Kk Construction of underwater concrete structure
JPS616163A (en) * 1984-06-20 1986-01-11 日曹マスタ−ビルダ−ズ株式会社 Method of decreasing fluidity reduction of cement composition
JPH0372591B2 (en) * 1984-06-20 1991-11-19 Nisso Master Builders Kk
JPS61158850A (en) * 1984-12-28 1986-07-18 ダイセル化学工業株式会社 Cement composition for underwater construction
JPH0242779B2 (en) * 1985-06-13 1990-09-26
JPS61286416A (en) * 1985-06-13 1986-12-17 Kajima Corp Underwater concreting
JPH045104B2 (en) * 1985-11-29 1992-01-30
JPS62129422A (en) * 1985-11-29 1987-06-11 Nippon Kaijo Koji Kk Corrosion-proof lining method for underwater steel pipe pile
JPS6311553A (en) * 1986-06-30 1988-01-19 日本鋼管株式会社 Cement composition for underwater concrete
JPH0550457B2 (en) * 1986-06-30 1993-07-29 Nippon Kokan Kk
JPS6433043A (en) * 1987-07-30 1989-02-02 Sumitomo Cement Co Special underwater concrete composition
JP2010059687A (en) * 2008-09-03 2010-03-18 Nagoya Univ Corrosion prevention lining method of pillar member

Also Published As

Publication number Publication date
JPH0427332B2 (en) 1992-05-11

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