JP2004175651A5 - - Google Patents
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- JP2004175651A5 JP2004175651A5 JP2003014813A JP2003014813A JP2004175651A5 JP 2004175651 A5 JP2004175651 A5 JP 2004175651A5 JP 2003014813 A JP2003014813 A JP 2003014813A JP 2003014813 A JP2003014813 A JP 2003014813A JP 2004175651 A5 JP2004175651 A5 JP 2004175651A5
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- JP
- Japan
- Prior art keywords
- concrete
- olefin
- concrete admixture
- structural unit
- copolymer
- 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.)
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Description
【特許請求の範囲】
【請求項１】 炭素数６〜１４のオレフィン由来の構成単位とマレイン酸由来の構成単位とを有する、重量平均分子量が３０００〜１００００のオレフィン−マレイン酸共重合体（１）と、該共重合体（１）以外のポリカルボン酸系重合体（２）とを含有するコンクリート混和剤。
【請求項２】 オレフィン−マレイン酸共重合体（１）が、下記の構成単位（Ｉ）を有する請求項１記載のコンクリート混和剤。
【化１】
〔式中、
Ｒ：炭素数６〜１４の二価の炭化水素基
Ｘ：水素原子、一価金属、二価金属、アンモニウム基、有機アンモニウム基
である。〕
【請求項３】 （１）／（２）の比率（重量比）が、（１）／（２）＝１／９９／〜４０／６０である請求項１又は２記載のコンクリート混和剤。
【請求項４】 ポリカルボン酸系重合体（２）が、ポリカルボン酸エーテル系の（メタ）アクリル酸（メタ）アクリル酸エステル共重合体である請求項１〜３の何れか１項記載のコンクリート混和剤。
【請求項５】 水硬性物質と、高炉スラグ、フライアッシュ、石粉、炭酸カルシウム、シリカヒューム及び亜炭から選ばれる一種以上と、請求項１〜４の何れか１項記載のコンクリート混和剤とを含有する水硬性組成物。
【請求項６】 コンクリート混和剤の含有量が水硬性物質に対して０．０１〜１重量％（固形分換算）である請求項５記載の水硬性組成物。
【請求項７】 請求項５又は６記載の水硬性組成物を用いたコンクリート硬化体。
【請求項８】 炭素数６〜１４のオレフィン由来の構成単位とマレイン酸由来の構成単位とを有する、重量平均分子量が３０００〜１００００のオレフィン−マレイン酸共重合体（１）を含有し、前記共重合体（１）以外のポリカルボン酸系重合体（２）を含む水硬性組成物を含有するコンクリートに用いられる、コンクリート肌面黒ずみ防止剤。
【請求項９】 高炉スラグ、フライアッシュ、石粉、炭酸カルシウム、シリカヒューム及び亜炭から選ばれる一種以上と、請求項８記載のコンクリート肌面黒ずみ防止剤とを含有する、粉末状コンクリート混和材。
【請求項１０】 水硬性物質と、高炉スラグ、フライアッシュ、石粉、炭酸カルシウム、シリカヒューム及び亜炭から選ばれる一種以上と、請求項８記載のコンクリート肌面黒ずみ防止剤とを含有する、粉末状水硬性組成物。
[Claims]
A weight average molecular weight comprising a structural unit derived from an olefin having 6 to 14 carbon atoms and a structural unit derived from maleic acid.3000-10000Concrete admixture containing the olefin-maleic acid copolymer (1) of the above and a polycarboxylic acid polymer (2) other than the copolymer (1).
2. The concrete admixture according to claim 1, wherein the olefin-maleic acid copolymer (1) has the following structural unit (I).
Embedded image
(In the formula,
R: divalent hydrocarbon group having 6 to 14 carbon atoms
X: hydrogen atom, monovalent metal, divalent metal, ammonium group, organic ammonium group
It is. ]
3. The concrete admixture according to claim 1, wherein the ratio (weight ratio) of (1) / (2) is (1) / (2) = 1/99 / to 40/60.
(4) The concrete admixture according to any one of claims 1 to 3, wherein the polycarboxylic acid polymer (2) is a polycarboxylic acid ether (meth) acrylic acid (meth) acrylate copolymer.
5. A hydraulic substance and at least one selected from blast furnace slag, fly ash, stone powder, calcium carbonate, silica fume and lignite, and4A hydraulic composition containing the concrete admixture according to any one of the above.
6. The content of the concrete admixture is 0.01 to 1% by weight (in terms of solid content) based on the hydraulic substance.5The hydraulic composition according to any one of the preceding claims.
7. Claim5Or6A hardened concrete using the hydraulic composition described in the above.
8. It has a structural unit derived from an olefin having 6 to 14 carbon atoms and a structural unit derived from maleic acid, and has a weight average molecular weight.3000-10000Concrete surface containing a olefin-maleic acid copolymer (1) and a hydraulic composition containing a polycarboxylic acid polymer (2) other than the copolymer (1). Anti-darkening agent.
9. A blast furnace slag, fly ash, stone powder, calcium carbonate, silica fume and lignite, and at least one selected from the group consisting of:8A powdered concrete admixture containing the concrete skin darkening inhibitor according to any one of the preceding claims.
10. A hydraulic substance and at least one selected from blast furnace slag, fly ash, stone powder, calcium carbonate, silica fume and lignite.8A powdery hydraulic composition, comprising the concrete skin darkening inhibitor according to any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003014813A JP4439816B2 (en) | 2002-10-03 | 2003-01-23 | Concrete admixture |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002290988 | 2002-10-03 | ||
| JP2003014813A JP4439816B2 (en) | 2002-10-03 | 2003-01-23 | Concrete admixture |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004175651A JP2004175651A (en) | 2004-06-24 |
| JP2004175651A5 true JP2004175651A5 (en) | 2006-03-09 |
| JP4439816B2 JP4439816B2 (en) | 2010-03-24 |
Family
ID=32715652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003014813A Expired - Fee Related JP4439816B2 (en) | 2002-10-03 | 2003-01-23 | Concrete admixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4439816B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4136538B2 (en) * | 2002-08-23 | 2008-08-20 | 太平洋セメント株式会社 | Black matter precipitation inhibitor and method for improving aesthetics |
| JP4494143B2 (en) * | 2004-09-15 | 2010-06-30 | 花王株式会社 | Admixture for hydraulic composition |
| JP4717713B2 (en) * | 2005-12-08 | 2011-07-06 | 花王株式会社 | Dispersant for hydraulic composition |
| JP4717642B2 (en) * | 2006-01-16 | 2011-07-06 | 花王株式会社 | Concrete admixture |
| KR101584324B1 (en) * | 2014-06-25 | 2016-01-14 | (주)대우건설 | Concrete composition for carbon dioxide reduction, high fludity and high durability |
| JP6707228B2 (en) * | 2016-06-21 | 2020-06-10 | 竹本油脂株式会社 | Concrete composition and hardened concrete |
| JP7011248B2 (en) * | 2017-06-16 | 2022-01-26 | 竹本油脂株式会社 | Hydraulic composition |
| CN113021617B (en) * | 2021-04-01 | 2021-11-09 | 哈尔滨工业大学 | Considering CO2Method for long-term cooperative work of solidified seawater sea sand concrete and FRP (fiber reinforced plastic) bars |
-
2003
- 2003-01-23 JP JP2003014813A patent/JP4439816B2/en not_active Expired - Fee Related
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