JPS6479050A - Cement dispersant - Google Patents

Cement dispersant

Info

Publication number
JPS6479050A
JPS6479050A JP23448787A JP23448787A JPS6479050A JP S6479050 A JPS6479050 A JP S6479050A JP 23448787 A JP23448787 A JP 23448787A JP 23448787 A JP23448787 A JP 23448787A JP S6479050 A JPS6479050 A JP S6479050A
Authority
JP
Japan
Prior art keywords
obtd
cement
blended
salt
dispersant
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
JP23448787A
Other languages
Japanese (ja)
Other versions
JP2722387B2 (en
Inventor
Shigeyuki Ueda
Yoshimitsu Sekiguchi
Kazuaki Yamaguchi
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.)
Lion Corp
Original Assignee
Lion Corp
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 Lion Corp filed Critical Lion Corp
Priority to JP62234487A priority Critical patent/JP2722387B2/en
Publication of JPS6479050A publication Critical patent/JPS6479050A/en
Application granted granted Critical
Publication of JP2722387B2 publication Critical patent/JP2722387B2/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 the titled dispersant able to stably and satisfactorily maintain the flowability of cement blending over a long time and increase its workability, by blending salt of specified polystyrenesulfonic acid with olefin- ethylenic unsatd. dicarboxylic anhydride copolymer. CONSTITUTION:The salt of polystyrenesulfonic acid (A) having 5,000-50,000 weight-average mol.wt. and having >=70% proportion of sulfonation, obtd. by directly sulfonating PS with sulfonating agent such as sulfuric acid, sulfur trioxide, oleum and by neutralizing with NaOH, etc., and the copolymer powder (B) having 500-10,000mol.wt. and having 0.1-1,000mu particle diameter, obtd. by copolymerizing olefin (a) such as (alpha-methyl)styrene, isoprene with ethylenic unsatd. dicarboxylic anhydride (b) such as maleic anhydride are blended in weight ratio of A/B=(4/6)-(8/2). The obtd. cement dispersant is blended by 0.01-1.0pts.wt. with 100pts.wt. cement and used.
JP62234487A 1987-09-18 1987-09-18 Cement dispersant Expired - Lifetime JP2722387B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62234487A JP2722387B2 (en) 1987-09-18 1987-09-18 Cement dispersant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62234487A JP2722387B2 (en) 1987-09-18 1987-09-18 Cement dispersant

Publications (2)

Publication Number Publication Date
JPS6479050A true JPS6479050A (en) 1989-03-24
JP2722387B2 JP2722387B2 (en) 1998-03-04

Family

ID=16971796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62234487A Expired - Lifetime JP2722387B2 (en) 1987-09-18 1987-09-18 Cement dispersant

Country Status (1)

Country Link
JP (1) JP2722387B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113527549A (en) * 2020-04-17 2021-10-22 中冶建筑研究总院有限公司 Concrete pumping regulator and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51525A (en) * 1974-06-24 1976-01-06 Mitsubishi Chem Ind SEMENTO BUNSANZAI
JPS5641866A (en) * 1979-09-07 1981-04-18 Denki Kagaku Kogyo Kk Cement product
JPS63230547A (en) * 1987-03-20 1988-09-27 山陽国策パルプ株式会社 Cement additive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51525A (en) * 1974-06-24 1976-01-06 Mitsubishi Chem Ind SEMENTO BUNSANZAI
JPS5641866A (en) * 1979-09-07 1981-04-18 Denki Kagaku Kogyo Kk Cement product
JPS63230547A (en) * 1987-03-20 1988-09-27 山陽国策パルプ株式会社 Cement additive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113527549A (en) * 2020-04-17 2021-10-22 中冶建筑研究总院有限公司 Concrete pumping regulator and preparation method thereof
CN113527549B (en) * 2020-04-17 2023-09-08 中冶建筑研究总院有限公司 Concrete pumping regulator and preparation method thereof

Also Published As

Publication number Publication date
JP2722387B2 (en) 1998-03-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term