JPS6451351A - Curing accelerator for spraying - Google Patents

Curing accelerator for spraying

Info

Publication number
JPS6451351A
JPS6451351A JP20391487A JP20391487A JPS6451351A JP S6451351 A JPS6451351 A JP S6451351A JP 20391487 A JP20391487 A JP 20391487A JP 20391487 A JP20391487 A JP 20391487A JP S6451351 A JPS6451351 A JP S6451351A
Authority
JP
Japan
Prior art keywords
7al2o3
curing accelerator
caf2
sio2
those
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
JP20391487A
Other languages
Japanese (ja)
Other versions
JP2503233B2 (en
Inventor
Kenkichi Hirano
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP62203914A priority Critical patent/JP2503233B2/en
Publication of JPS6451351A publication Critical patent/JPS6451351A/en
Application granted granted Critical
Publication of JP2503233B2 publication Critical patent/JP2503233B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To provide a curing accelerator for concrete used for a tunnel, etc., and producing the effect even in a cold district when added by a small amt., by mixing 12CaO.7Al2O3 or 11CaO.7Al2O3.CaX2 (X is halogen) with 3CaO-SiO2. CONSTITUTION:For example, 12CaO.7Al2O3 (C12A7), 11CaO.7Al2O3.CaF2 (C11A7 CaF2) and 3CaO.SiO2 (C3S) are synthesized with CaO, Al2O3, SiO2 and CaF2 commercially available first-class reagents. Starting materials for C12A7 are calcined at 1,650 deg.C for 5hr, those for C11A7CaF2 at 1,400 deg.C for 5hr and those for C3S at 1,700 deg.C for 5hr. The calcined products are separately ground with ball mills and molded with 30t presses. Those operations are repeated three times to synthesize the minerals. C12A7 or C11A7CaF2 is mixed with C3S in a prescribed ratio to obtain a curing accelerator.
JP62203914A 1987-08-17 1987-08-17 Quick-setting material for spraying Expired - Lifetime JP2503233B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62203914A JP2503233B2 (en) 1987-08-17 1987-08-17 Quick-setting material for spraying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62203914A JP2503233B2 (en) 1987-08-17 1987-08-17 Quick-setting material for spraying

Publications (2)

Publication Number Publication Date
JPS6451351A true JPS6451351A (en) 1989-02-27
JP2503233B2 JP2503233B2 (en) 1996-06-05

Family

ID=16481784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62203914A Expired - Lifetime JP2503233B2 (en) 1987-08-17 1987-08-17 Quick-setting material for spraying

Country Status (1)

Country Link
JP (1) JP2503233B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013031A1 (en) * 1990-03-01 1991-09-05 North West Water Limited Water treatment
WO1991012215A3 (en) * 1990-02-12 1991-12-26 Monk Construction Ltd Ferrocement composition, method of forming objects therefrom and apparatus for use in such a method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930683A (en) * 1972-07-19 1974-03-19
JPS5215610A (en) * 1975-07-28 1977-02-05 Takao Miura Production of roll paper for bag material erom regenerated old paper
JPS5225449A (en) * 1975-08-20 1977-02-25 Onoda Cement Co Ltd Material to solidify sixvalent chromium containing slag or waste water
JPS5442010A (en) * 1977-06-20 1979-04-03 Foam Schaumtechnik Blending valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930683A (en) * 1972-07-19 1974-03-19
JPS5215610A (en) * 1975-07-28 1977-02-05 Takao Miura Production of roll paper for bag material erom regenerated old paper
JPS5225449A (en) * 1975-08-20 1977-02-25 Onoda Cement Co Ltd Material to solidify sixvalent chromium containing slag or waste water
JPS5442010A (en) * 1977-06-20 1979-04-03 Foam Schaumtechnik Blending valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012215A3 (en) * 1990-02-12 1991-12-26 Monk Construction Ltd Ferrocement composition, method of forming objects therefrom and apparatus for use in such a method
US5358751A (en) * 1990-02-12 1994-10-25 Hallgarth Construction Limited Ferrocement lining units, methods of making them and methods of lining a water course with them
WO1991013031A1 (en) * 1990-03-01 1991-09-05 North West Water Limited Water treatment

Also Published As

Publication number Publication date
JP2503233B2 (en) 1996-06-05

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