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
- 239000004568 cement Substances 0.000 title abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 3
- 150000001735 carboxylic acids Chemical class 0.000 abstract 2
- 150000002736 metal compounds Chemical class 0.000 abstract 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract 1
- -1 acrylic acid) and Chemical class 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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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