JPS5781530A - Placement work of underwater concrete and form therefor - Google Patents
Placement work of underwater concrete and form thereforInfo
- 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
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
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)
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)
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 |
-
1980
- 1980-11-05 JP JP15544080A patent/JPS5781530A/en active Granted
Patent Citations (4)
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)
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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