JPS6483543A - Retarding admixture - Google Patents

Retarding admixture

Info

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
Application number
JP62237381A
Other languages
Japanese (ja)
Other versions
JP2533569B2 (en
Inventor
Yukio Sasagawa
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 JP62237381A priority Critical patent/JP2533569B2/en
Publication of JPS6483543A publication Critical patent/JPS6483543A/en
Application granted granted Critical
Publication of JP2533569B2 publication Critical patent/JP2533569B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.%.
JP62237381A 1987-09-24 1987-09-24 Setting retarder Expired - Lifetime JP2533569B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932921A (en) * 1972-07-25 1974-03-26
JPS50102617A (en) * 1974-01-16 1975-08-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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