JPS6445751A - Flash-setting agent for cement - Google Patents
Flash-setting agent for cementInfo
- Publication number
- JPS6445751A JPS6445751A JP62200048A JP20004887A JPS6445751A JP S6445751 A JPS6445751 A JP S6445751A JP 62200048 A JP62200048 A JP 62200048A JP 20004887 A JP20004887 A JP 20004887A JP S6445751 A JPS6445751 A JP S6445751A
- Authority
- JP
- Japan
- Prior art keywords
- flash
- setting agent
- cement
- aqueous solution
- polyvalent metal
- 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.)
- Pending
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
PURPOSE:To obtain a flash-setting agent for cement having short setting time and free from alkali trouble, by neutralizing a (co)polymer containing an unsaturated carboxylic acid with a polyvalent metal compound. CONSTITUTION:An aqueous solution containing a (co)polymer of an unsaturated carboxylic acid (e.g. acrylic acid) and, as necessary, a monomer copolymerizable therewith [e.g. methyl (meth)acrylate] is neutralized with a polyvalent metal compound (e.g. MgO) to an extent to convert >=50% of the carboxyl group in the (co)polymer to the polyvalent metal salt. The neutralized product is adjusted to pH5-10 (as a 1wt.% aqueous solution) to obtain the objective flash- setting agent composed of an aqueous solution of the neutralization reaction product having a concentration of 10-50wt.%. 100pts.wt. of cement is added with 0.5-50pts.wt. of the flash-setting agent and a proper amount of water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200048A JPS6445751A (en) | 1987-08-12 | 1987-08-12 | Flash-setting agent for cement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200048A JPS6445751A (en) | 1987-08-12 | 1987-08-12 | Flash-setting agent for cement |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6445751A true JPS6445751A (en) | 1989-02-20 |
Family
ID=16417961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62200048A Pending JPS6445751A (en) | 1987-08-12 | 1987-08-12 | Flash-setting agent for cement |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6445751A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020027191A1 (en) * | 2018-08-01 | 2020-02-06 | 花王株式会社 | Method for improving ground |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4993002U (en) * | 1972-11-30 | 1974-08-12 | ||
JPS4939562B1 (en) * | 1970-09-30 | 1974-10-26 | ||
JPS6210299U (en) * | 1985-07-05 | 1987-01-22 | ||
JPS6233995Y2 (en) * | 1981-03-18 | 1987-08-31 |
-
1987
- 1987-08-12 JP JP62200048A patent/JPS6445751A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939562B1 (en) * | 1970-09-30 | 1974-10-26 | ||
JPS4993002U (en) * | 1972-11-30 | 1974-08-12 | ||
JPS6233995Y2 (en) * | 1981-03-18 | 1987-08-31 | ||
JPS6210299U (en) * | 1985-07-05 | 1987-01-22 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020027191A1 (en) * | 2018-08-01 | 2020-02-06 | 花王株式会社 | Method for improving ground |
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