JPS56135630A - Forming work of cement mortar layer around periphery of underwater structure - Google Patents

Forming work of cement mortar layer around periphery of underwater structure

Info

Publication number
JPS56135630A
JPS56135630A JP3921680A JP3921680A JPS56135630A JP S56135630 A JPS56135630 A JP S56135630A JP 3921680 A JP3921680 A JP 3921680A JP 3921680 A JP3921680 A JP 3921680A JP S56135630 A JPS56135630 A JP S56135630A
Authority
JP
Japan
Prior art keywords
cement mortar
water
formwork
air
mortar layer
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
JP3921680A
Other languages
Japanese (ja)
Other versions
JPS5942775B2 (en
Inventor
Morio Baba
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.)
NITSUSEN KAGAKU KOGYO KK
Nippon Sheet Glass Co Ltd
Nissan Chemical Corp
Original Assignee
NITSUSEN KAGAKU KOGYO KK
Nippon Sheet Glass Co Ltd
Nissan Chemical Corp
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 NITSUSEN KAGAKU KOGYO KK, Nippon Sheet Glass Co Ltd, Nissan Chemical Corp filed Critical NITSUSEN KAGAKU KOGYO KK
Priority to JP55039216A priority Critical patent/JPS5942775B2/en
Publication of JPS56135630A publication Critical patent/JPS56135630A/en
Publication of JPS5942775B2 publication Critical patent/JPS5942775B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

PURPOSE: To efficiently form a cement mortar layer having improved corrosion resistance and mechanical strengths by a method in which an air- and water-tight cover is provided on the outside of a formwork surrounding a structure and then cement mortar is poured into the formwork under a water-tighted state.
CONSTITUTION: A structure 1 whose partial portion is under water surface WL is surrounded by a formwork 2, its outside is covered detachably with an air-and water-tight cover 3 in such a way as to surround the formwork 2, a compressed air supply port 6, a pressure regulating hole 7, and a cement mortar charging port 13 are provided at the upper end of the cover 3, and a water discharged port 10 is provided at the lower end of the cover 3. And, both the upper and lower ends are fixed to the structure 1 through a band 11 with rubber packing and fixing band 12. Compressed air is sent into the supply port 6 and internal water is discharged through the water discharge ports 9a and 10 for replacing it with air. Then, cement mortar 8' is charged from the charging port 13 into the formwark 2 and hardened to form a cement mortar layer on the outside of the structure for preventing it from corrosion.
COPYRIGHT: (C)1981,JPO&Japio
JP55039216A 1980-03-26 1980-03-26 Construction method for constructing a cement mortar layer around the periphery of an underwater structure Expired JPS5942775B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55039216A JPS5942775B2 (en) 1980-03-26 1980-03-26 Construction method for constructing a cement mortar layer around the periphery of an underwater structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55039216A JPS5942775B2 (en) 1980-03-26 1980-03-26 Construction method for constructing a cement mortar layer around the periphery of an underwater structure

Publications (2)

Publication Number Publication Date
JPS56135630A true JPS56135630A (en) 1981-10-23
JPS5942775B2 JPS5942775B2 (en) 1984-10-17

Family

ID=12546935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55039216A Expired JPS5942775B2 (en) 1980-03-26 1980-03-26 Construction method for constructing a cement mortar layer around the periphery of an underwater structure

Country Status (1)

Country Link
JP (1) JPS5942775B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040035221A (en) * 2002-10-18 2004-04-29 이진용 Repairing concrete structures under water by using vaccum drying method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040035221A (en) * 2002-10-18 2004-04-29 이진용 Repairing concrete structures under water by using vaccum drying method

Also Published As

Publication number Publication date
JPS5942775B2 (en) 1984-10-17

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