JPS6483543A - Retarding admixture - Google Patents
Retarding admixtureInfo
- Publication number
- JPS6483543A JPS6483543A JP62237381A JP23738187A JPS6483543A JP S6483543 A JPS6483543 A JP S6483543A JP 62237381 A JP62237381 A JP 62237381A JP 23738187 A JP23738187 A JP 23738187A JP S6483543 A JPS6483543 A JP S6483543A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- retarding admixture
- citrate
- 30pts
- citric acid
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
PURPOSE:To obtain a retarding admixture having small variation of setting time with ambient temperature and giving stable setting time, by mixing citric acid with an alkali metal citrate and an alkali metal carbonate. CONSTITUTION:A retarding admixture is produced by mixing 50-80pts.wt. of citric acid having finest possible particle size with 10-30pts.wt. of an alkali metal citrate (e.g. lithium citrate) and 10-30pts.wt. of an alkali metal carbonate (e.g. Na2CO3). The retarding admixture is added to alumina cement in an amount of 0.2-5wt.%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237381A JP2533569B2 (en) | 1987-09-24 | 1987-09-24 | Setting retarder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237381A JP2533569B2 (en) | 1987-09-24 | 1987-09-24 | Setting retarder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6483543A true JPS6483543A (en) | 1989-03-29 |
JP2533569B2 JP2533569B2 (en) | 1996-09-11 |
Family
ID=17014545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62237381A Expired - Lifetime JP2533569B2 (en) | 1987-09-24 | 1987-09-24 | Setting retarder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2533569B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019093099A1 (en) * | 2017-11-07 | 2019-05-16 | デンカ株式会社 | Expansive cement admixture, expansive cement admixture slurry, and expansive cement concrete prepared using same and method for production thereof |
JP2021530418A (en) * | 2018-07-06 | 2021-11-11 | ビーエイエスエフ・ソシエタス・エウロパエアBasf Se | Compositions for fluid refractory materials |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932921A (en) * | 1972-07-25 | 1974-03-26 | ||
JPS50102617A (en) * | 1974-01-16 | 1975-08-14 |
-
1987
- 1987-09-24 JP JP62237381A patent/JP2533569B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932921A (en) * | 1972-07-25 | 1974-03-26 | ||
JPS50102617A (en) * | 1974-01-16 | 1975-08-14 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019093099A1 (en) * | 2017-11-07 | 2019-05-16 | デンカ株式会社 | Expansive cement admixture, expansive cement admixture slurry, and expansive cement concrete prepared using same and method for production thereof |
JPWO2019093099A1 (en) * | 2017-11-07 | 2020-11-12 | デンカ株式会社 | Expandable cement admixture, expandable cement admixture slurry, expandable cement concrete using it, and its manufacturing method. |
JP2021530418A (en) * | 2018-07-06 | 2021-11-11 | ビーエイエスエフ・ソシエタス・エウロパエアBasf Se | Compositions for fluid refractory materials |
Also Published As
Publication number | Publication date |
---|---|
JP2533569B2 (en) | 1996-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080627 Year of fee payment: 12 |