JPS6451351A - Curing accelerator for spraying - Google Patents
Curing accelerator for sprayingInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-08-17 JP JP62203914A patent/JP2503233B2/en not_active Expired - Lifetime
Patent Citations (4)
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)
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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