JPS573921A - Underwater construction of steel-framed or steel bar-reinforced concrete structure - Google Patents

Underwater construction of steel-framed or steel bar-reinforced concrete structure

Info

Publication number
JPS573921A
JPS573921A JP7787880A JP7787880A JPS573921A JP S573921 A JPS573921 A JP S573921A JP 7787880 A JP7787880 A JP 7787880A JP 7787880 A JP7787880 A JP 7787880A JP S573921 A JPS573921 A JP S573921A
Authority
JP
Japan
Prior art keywords
water
concrete structure
concrete
steel
hardened
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
JP7787880A
Other languages
Japanese (ja)
Other versions
JPH0366274B2 (en
Inventor
Yasushi Nakahara
Kazumi Kotani
Tadanori Otomo
Kenichi Motohashi
Kenichi Kaiho
Akinori Suenaga
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 JP7787880A priority Critical patent/JPS573921A/en
Publication of JPS573921A publication Critical patent/JPS573921A/en
Publication of JPH0366274B2 publication Critical patent/JPH0366274B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Revetment (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)

Abstract

PURPOSE: To obtain a concrete structure having a desired strength under water by placing a fresh concrete containing a thickening agent in an amount enough to give it a consistency meeting a given condition required when constructing a steel bar- reinforced concrete structure under water.
CONSTITUTION: Portland cement is mixed with water to form a cement paste of a water-cement ratio of 60%, and the cement paste is further mixed with a thickening agent of polyacrylamide. Then, the mixture is flowed from the surface of 400cc of water put in a cylinder 5cm in diameter and 40cm high and allowed to stand until it is hardened. Then, samples are taken from the 5cm range of each of the uppermost and lowermost parts of the hardened mixture, and the difference in specifid gravity between them is measured. When the difference in specific gravityis below 0.1, the fresh, concrete of such a consistency can be placed under water to provided hardened concrete having sufficient strength.
COPYRIGHT: (C)1982,JPO&Japio
JP7787880A 1980-06-11 1980-06-11 Underwater construction of steel-framed or steel bar-reinforced concrete structure Granted JPS573921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7787880A JPS573921A (en) 1980-06-11 1980-06-11 Underwater construction of steel-framed or steel bar-reinforced concrete structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7787880A JPS573921A (en) 1980-06-11 1980-06-11 Underwater construction of steel-framed or steel bar-reinforced concrete structure

Publications (2)

Publication Number Publication Date
JPS573921A true JPS573921A (en) 1982-01-09
JPH0366274B2 JPH0366274B2 (en) 1991-10-16

Family

ID=13646315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7787880A Granted JPS573921A (en) 1980-06-11 1980-06-11 Underwater construction of steel-framed or steel bar-reinforced concrete structure

Country Status (1)

Country Link
JP (1) JPS573921A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869760A (en) * 1981-10-16 1983-04-26 株式会社エヌエムビー Concrete composition for underwater construction
JPS59131548A (en) * 1983-01-18 1984-07-28 株式会社　間組 Underwater cementitious substance composition
JPS61146748A (en) * 1984-12-14 1986-07-04 信越化学工業株式会社 Method for producing cement composition for pumping
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
JPS6233929A (en) * 1985-08-07 1987-02-13 Ohbayashigumi Ltd Construction of mass-reinforced concrete structure under water
JPS6250521A (en) * 1985-08-27 1987-03-05 Shimizu Constr Co Ltd Placement of slurry under water
JPS6255325A (en) * 1985-09-02 1987-03-11 Ohbayashigumi Ltd Charging of soil into water
JP2013066451A (en) * 2011-09-26 2013-04-18 Litoncosmo Co Ltd Construction method of artificial fishing ground

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5082123A (en) * 1973-11-21 1975-07-03
JPS51128309A (en) * 1975-05-01 1976-11-09 Mitsubishi Chem Ind Admixing agent conpositions for ceramics
DE2626647A1 (en) * 1975-06-16 1977-01-13 Heard Robert Arthur H DEVICE FOR FASTENING A FIRST BODY TO A SECOND BODY
DE2541747A1 (en) * 1975-09-19 1977-03-24 Sicotan Kunststoff Strong porous concrete for underwater constructions - withstanding press. of underground waters and erosion by waves
JPS54153848A (en) * 1978-05-23 1979-12-04 Wacker Chemie Gmbh Additive for producing foamless hydraulic material containing synthetic resin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5082123A (en) * 1973-11-21 1975-07-03
JPS51128309A (en) * 1975-05-01 1976-11-09 Mitsubishi Chem Ind Admixing agent conpositions for ceramics
DE2626647A1 (en) * 1975-06-16 1977-01-13 Heard Robert Arthur H DEVICE FOR FASTENING A FIRST BODY TO A SECOND BODY
DE2541747A1 (en) * 1975-09-19 1977-03-24 Sicotan Kunststoff Strong porous concrete for underwater constructions - withstanding press. of underground waters and erosion by waves
JPS54153848A (en) * 1978-05-23 1979-12-04 Wacker Chemie Gmbh Additive for producing foamless hydraulic material containing synthetic resin

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869760A (en) * 1981-10-16 1983-04-26 株式会社エヌエムビー Concrete composition for underwater construction
JPS59131548A (en) * 1983-01-18 1984-07-28 株式会社　間組 Underwater cementitious substance composition
JPS61146748A (en) * 1984-12-14 1986-07-04 信越化学工業株式会社 Method for producing cement composition for pumping
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
JPS6233929A (en) * 1985-08-07 1987-02-13 Ohbayashigumi Ltd Construction of mass-reinforced concrete structure under water
JPS6250521A (en) * 1985-08-27 1987-03-05 Shimizu Constr Co Ltd Placement of slurry under water
JPS6255325A (en) * 1985-09-02 1987-03-11 Ohbayashigumi Ltd Charging of soil into water
JP2013066451A (en) * 2011-09-26 2013-04-18 Litoncosmo Co Ltd Construction method of artificial fishing ground

Also Published As

Publication number Publication date
JPH0366274B2 (en) 1991-10-16

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