JPH01246164A - Admixture for hydraulic cement - Google Patents
Admixture for hydraulic cementInfo
- Publication number
- JPH01246164A JPH01246164A JP7576188A JP7576188A JPH01246164A JP H01246164 A JPH01246164 A JP H01246164A JP 7576188 A JP7576188 A JP 7576188A JP 7576188 A JP7576188 A JP 7576188A JP H01246164 A JPH01246164 A JP H01246164A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- admixture
- water
- amidosulfonate
- salt
- 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
- 239000011396 hydraulic cement Substances 0.000 title claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 159000000003 magnesium salts Chemical class 0.000 claims abstract description 5
- 150000001414 amino alcohols Chemical class 0.000 claims description 11
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 9
- 159000000007 calcium salts Chemical class 0.000 claims description 4
- 159000000000 sodium salts Chemical group 0.000 claims description 3
- -1 amide sulfonate Chemical class 0.000 claims description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 abstract description 11
- 239000004567 concrete Substances 0.000 abstract description 3
- 230000009972 noncorrosive effect Effects 0.000 abstract description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 abstract 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- RSIPQRDGPVEGLE-UHFFFAOYSA-L calcium;disulfamate Chemical compound [Ca+2].NS([O-])(=O)=O.NS([O-])(=O)=O RSIPQRDGPVEGLE-UHFFFAOYSA-L 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- YZVJHCGMTYDKFR-UHFFFAOYSA-L magnesium;disulfamate Chemical compound [Mg+2].NS([O-])(=O)=O.NS([O-])(=O)=O YZVJHCGMTYDKFR-UHFFFAOYSA-L 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- BTAAXEFROUUDIL-UHFFFAOYSA-M potassium;sulfamate Chemical compound [K+].NS([O-])(=O)=O BTAAXEFROUUDIL-UHFFFAOYSA-M 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】 童呈上皇科■分団 本発明は、水硬性セメント用混和剤に関する。[Detailed description of the invention] Retired Imperial Family ■ Branch The present invention relates to an admixture for hydraulic cement.
本発明の混和剤は、非塩化物であって、かつ非腐食性で
ある。この混和剤は、水硬性セメントの硬化促進剤とし
て、また、従来の減水剤、ＡＥｆｉ水剤、ＡＥ剤などと
配合することにより無塩化促進型ＡＥＪ水剤としても利
用できる。The admixtures of the present invention are non-chloride and non-corrosive. This admixture can be used as a hardening accelerator for hydraulic cement, and also as a salt-free AEJ water agent by blending with conventional water reducing agents, AEfi water agents, AE agents, etc.
従来勿技止
水硬性セメント用硬化促進剤として、塩化カルシウムが
性能優秀で、かつ安価であるので、従来、最も広く用い
られて来たが、コンクリートの耐久性の観点より、１９
８７年より塩化物の総量規制が強化されたので、鉄筋コ
ンクリートには実質上、塩化カルシウムは使用できない
。Conventionally, calcium chloride has been most widely used as a hardening accelerator for waterproof cement because it has excellent performance and is inexpensive, but from the viewpoint of concrete durability, 19
Since regulations on the total amount of chloride have been tightened since 1987, calcium chloride cannot actually be used in reinforced concrete.
塩化カルシウムに代わるべき有効な非塩化物系硬化促進
剤の一つとしてアミドスルフォン酸塩、特にアミドスル
フオン酸カルシウムが優れていることは、西ドイツ公開
特許第２０５３３０８号公報に示されている。The superiority of amidosulfonic acid salts, especially calcium amidosulfonate, as an effective non-chloride hardening accelerator to replace calcium chloride is shown in West German Patent Publication No. 2053308.
全１届ＵＷ決−坦ケ課、徂
しかし、アミドスルフオン酸カルシウムは、それ単独で
はセメントに対する硬化促進能が大きくはなく、セメン
トに対して１．５〜１２重量％もの著しく多量の添加を
必要とし、経済的でない。さらに、アミドスルフォン酸
カルシウ１５は、それ単独では、軽微ながら鉄筋を腐食
させる。However, calcium amidosulfonate alone does not have a large ability to accelerate hardening of cement, and it is necessary to add it in extremely large amounts of 1.5 to 12% by weight to cement. necessary and not economical. Furthermore, calcium amidosulfonate 15 alone corrodes reinforcing steel, albeit slightly.
（提乞算夾１工友改９］ユ
本発明の水硬性セメント用混和剤は、アミドスルフォン
酸塩と水溶性アミノアルコールを含有することを特徴と
する。(Suggestion Calculation 1 Koyu Kai 9) The admixture for hydraulic cement of the present invention is characterized by containing an amidosulfonic acid salt and a water-soluble amino alcohol.
用いられるアミドスルフォン酸塩としては、アミドスル
フォン酸のナトリウム塩、カリウム塩、カルシウム塩、
マグネシウム塩等が例示される。The amidosulfonic acid salts used include sodium salts, potassium salts, calcium salts, and amidosulfonic acid salts.
Examples include magnesium salts.
これらは混合物としても用いられる。特に、カルシウム
塩及びマグネシウム塩は好ましい。用いられる水ン容性
アミノアルコール
ノールアミン、Ｎ，Ｎ−ジメチルエタノールアミン、Ｎ
，Ｎ−ジエチルエタノールアミン、Ｎ−（β−アミノエ
チル）エタノールアミン、Ｎ−メチルエタノールアミン
、Ｎ−メチルジェタノールアミン等が例示され、これら
は混合物としても用いられる。These can also be used as a mixture. Particularly preferred are calcium salts and magnesium salts. Water-soluble aminoalcoholnolamine used, N,N-dimethylethanolamine, N
, N-diethylethanolamine, N-(β-aminoethyl)ethanolamine, N-methylethanolamine, N-methyljetanolamine, etc., and these may also be used as a mixture.
特に、トリエタノールアミンは好ましい。Particularly preferred is triethanolamine.
本発明の混和剤は、セメントに対しアミドスルフォン酸
塩０． １〜１．４重量％とセメントに対し水溶性アミ
ノアルコール０．０１〜０．０６重量％となる比率でセ
メントに加えられる。The admixture of the present invention contains 0.0% amidosulfonate to cement. It is added to the cement in a ratio of 1 to 1.4% by weight and 0.01 to 0.06% by weight of water-soluble amino alcohol to cement.
本発明の混和剤としては、上記アミドスルフォン酸塩と
アミノアルコールの他に、公知のセメント用添加剤、例
えば、減水剤、ＡＥ剤、ＡＥ減水剤等も含有させること
ができる。In addition to the above-mentioned amidosulfonate and amino alcohol, the admixture of the present invention can also contain known additives for cement, such as a water reducing agent, an AE agent, an AE water reducing agent, and the like.
本発明の混和剤が添加される水硬性セメントとしては、
普通ポルトランドセメント、早強ポルトランドセメント
、中庸熱ポルトランドセメント、耐硫酸塩セメント、フ
ライアッシュセメント、高炉セメント、白色セメント等
水和反応によって硬化する水硬性のセメントが例示され
る。The hydraulic cement to which the admixture of the present invention is added includes:
Hydraulic cements that harden through a hydration reaction are exemplified, such as ordinary Portland cement, early-strength Portland cement, medium-heat Portland cement, sulfate-resistant cement, fly ash cement, blast furnace cement, and white cement.
（作 用）
アミドスルフォン酸塩自体は、セメントに対する添加量
が少量、例えば、２重量％以下では硬化促進性を示さず
、むしろ、この添加量では遅延性を示すか、意外なこと
に、少量の水溶性アミノアルコールを併用すると著しい
硬化促進性を示すことが見出された。そして更に、この
水溶性アミノアルコールは、アミドスルフォン酸塩の鉄
筋腐食性を抑制して、本発明の混和剤に防錆性を付与す
ることが見出された。(Function) Amidosulfonate itself does not exhibit hardening accelerating properties when added to cement in small amounts, for example, 2% by weight or less, but rather exhibits curing retardation at this added amount, or surprisingly, in small amounts. It has been found that when used in combination with a water-soluble amino alcohol, curing is significantly accelerated. Furthermore, it has been found that this water-soluble amino alcohol suppresses the corrosive properties of amidosulfonic acid salts to reinforcing steel, thereby imparting rust prevention properties to the admixture of the present invention.
しかし、アミドスルフォン酸塩の添加量がセメントに対
し０．１重量％以下では、セメントの硬化を好ましく促
進せず、反対に１．４重量％以上の多量ではその割には
効果がなく、コスト高となる。However, if the amount of amidosulfonate added is less than 0.1% by weight based on the cement, it will not favorably promote the hardening of cement, and on the other hand, if the amount is more than 1.4% by weight, it will not be effective and will increase the cost. Becomes high.
併用される水溶性アミノアルコールの添加量がセメント
に対し０．０１重量％以下のときも、上記アミノアルコ
ールの効果が殆ど発現せず、反対に、０、０６重量％以
上の多量ではコンクリートの長期強度を低下させ易い。Even when the amount of water-soluble amino alcohol used in combination is less than 0.01% by weight based on the cement, the effect of the amino alcohol is hardly exhibited; Easy to reduce strength.
アミドスルフオン酸カルシウム、アミドスルフオン酸マ
グネシウム等のアルカリ土類金属の塩は、アミドスルフ
オン酸ナトリウム、アミドスルフオン酸カリウム等のア
ルカリ金属塩の添加がセメント中のアルカリ分を増加さ
せるのに対し、セメント鉱物と安定な複塩を形成するの
でアルカリ分を増加させることがない。アミドスルフオ
ン酸マグネシウムは、アミドスルフオン酸カルシウムよ
りも水に対する溶解度が大きいので、低温で混和剤を水
溶液として用いるときに有利である。アミドスルフォン
酸塩とアミノアルコールの組合せの中では、アミノアル
コールとしてトリエタノールアミンは特に効果が高く、
従って、本発明による特に好ましい混和剤は、アミドス
ルフオン酸マグネシウムとトリエタノールアミンとの併
用によって得られる。Salts of alkaline earth metals such as calcium amidosulfonate and magnesium amidosulfonate, while addition of alkali metal salts such as sodium amidosulfonate and potassium amidosulfonate increase the alkaline content in cement. On the other hand, since it forms a stable double salt with cement minerals, it does not increase the alkaline content. Magnesium amidosulfonate has a greater solubility in water than calcium amidosulfonate, which is advantageous when the admixture is used as an aqueous solution at low temperatures. Among the combinations of amidosulfonate and amino alcohol, triethanolamine is particularly effective as an amino alcohol.
A particularly preferred admixture according to the invention is therefore obtained by the combination of magnesium amidosulfonate and triethanolamine.
（実施例）
実施例及び比較例
普通ポルトランドセメントを用い、ＪＩＳ Ｒ ５２０
１に準じてモルタルを調製し、初期材令１日及び３日に
おける圧縮強度を測定した。実験Ｎｏ． １〜４は本発
明の実施例であり、実験Ｎｏ． ５〜１０は比較例であ
る。(Example) Example and Comparative Example Using ordinary Portland cement, JIS R 520
Mortar was prepared according to 1, and the compressive strength at the initial age of 1 day and 3 days was measured. Experiment no. 1 to 4 are Examples of the present invention, and Experiment No. 1 to 4 are Examples of the present invention. 5 to 10 are comparative examples.
添加剤には、アミドスルフォン酸カルシウム（Ｃａ（Ｓ
０３ＮＩＩ□）２）、アミドスルフオン酸マグネシウム
（Ｍｇ（Ｓ０３ＮＩＩ□）２）及びトリエタノールアミ
ン（以下、ＴＥＡで表わす。）が用いられた。これら添
加剤は、表１に記載のセメントに対する重量％屡をモル
タル調製時に加えた。Ｎｏ、 Ｉ Ｏは添加剤を全く加
えない例であり、その圧縮強度に対する添加剤を加えた
Ｎｏ、 １〜９の圧縮強度の比を表１の（）内に％で示
した。Additives include calcium amidosulfonate (Ca(S)
03NII□)2), magnesium amidosulfonate (Mg(S03NII□)2), and triethanolamine (hereinafter referred to as TEA) were used. These additives were added in the weight percentages based on the cement listed in Table 1 during mortar preparation. No. IO is an example in which no additives are added, and the ratio of the compressive strength of Nos. 1 to 9 with additives to that compressive strength is shown in parentheses in Table 1 as a percentage.
別途、アミドスルフオン酸マグネシウムの５０ｆｆｉｆ
ｆｉ％水溶液とアミド゛スルフォン酸カルシウムの３５
重量％水溶液を調製し、ＴＥＡが併用された例では、表
１に記載のアミドスルフォン酸塩とＴＥＡの相対比率と
なるようにその水溶液にＴＥＡを加え、得られた水溶液
に鉄棒を室温で７日間浸漬し、鉄棒表面の発錆状況を眼
視観察した。表１において、◎印は、黒錆が認められな
かったことを、○印は、かすかに黒錆が認められたこと
を、そして△印は、明瞭な黒錆が認められたことを示す
。Separately, 50ffif of magnesium amidosulfonate
35 of fi% aqueous solution and calcium amidosulfonate
In an example in which a wt % aqueous solution was prepared and TEA was used in combination, TEA was added to the aqueous solution so that the relative ratio of amidosulfonate and TEA was as shown in Table 1, and an iron rod was added to the resulting aqueous solution at room temperature for 7 The steel rods were immersed for one day, and the state of rust on the surface of the iron rods was visually observed. In Table 1, ◎ indicates that no black rust was observed, ○ indicates that faint black rust was observed, and △ indicates that clear black rust was observed.
アミドスルフォン酸塩とＴＥＡが併用添加されたＮｏ、
１〜４では、表１に示す如く著しく高いモルタル強度
の向上が認められ、そして防錆性も充分であることが認
められた。No. in which amidosulfonate and TEA were added together,
As shown in Table 1, in Nos. 1 to 4, a marked improvement in mortar strength was observed, and it was also found that the rust prevention properties were sufficient.
これに対し、アミドスルフォン酸塩の単独が添加された
Ｎα５〜８では、表１に示す如く強度増加はごく僅かで
あり、腐食性であることが認められた。また、ＴＥＡ単
独添加のＮｏ、 ９でも表１に示す如く強度増加は僅か
である。On the other hand, as shown in Table 1, in Nα5 to Nα8 to which only the amidosulfonate was added, the increase in strength was very small, and it was recognized that they were corrosive. In addition, as shown in Table 1, even in No. 9, in which only TEA was added, the increase in strength was slight.
（発明の効果）
本発明によると、筒易に非腐食性の非塩化物混和剤が得
られ、水硬性セメントに対し約１．４重量％以下の少量
のこの混和剤添加によって、硬化促進性が著しく高いセ
メント組成物が得られる。また、この混和剤を加えると
耐久性に優れたコンクリートが得られる。(Effects of the Invention) According to the present invention, a non-corrosive, non-chloride admixture can be easily obtained, and by adding a small amount of this admixture of about 1.4% by weight or less to hydraulic cement, hardening acceleration can be achieved. A cement composition with a significantly high Addition of this admixture also provides concrete with excellent durability.
Claims (4)
を含有する水硬性セメント用混和剤。(1) A hydraulic cement admixture containing an amidosulfonate and a water-soluble amino alcohol.
ナトリウム塩、カリウム塩、カルシウム塩、マグネシウ
ム塩又はそれらの混合物である第（１）請求項に記載の
混和剤。(2) The admixture according to claim (1), wherein the amidosulfonic acid salt is a sodium salt, potassium salt, calcium salt, magnesium salt of amidosulfonic acid, or a mixture thereof.
１．４重量％と水溶性アミノアルコールを０．０１〜０
．０６重量％含有する水硬性セメント組成物。(3) Add amide sulfonate to cement from 0.1 to
1.4% by weight and 0.01 to 0 water-soluble amino alcohol
．． Hydraulic cement composition containing 0.06% by weight.
ナトリウム塩、カリウム塩、カルシウム塩、マグネシウ
ム塩又はそれらの混合物である第（３）請求項に記載の
水硬性セメント組成物。(4) The hydraulic cement composition according to claim (3), wherein the amidosulfonic acid salt is a sodium salt, potassium salt, calcium salt, magnesium salt of amidosulfonic acid, or a mixture thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7576188A JPH01246164A (en) | 1988-03-29 | 1988-03-29 | Admixture for hydraulic cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7576188A JPH01246164A (en) | 1988-03-29 | 1988-03-29 | Admixture for hydraulic cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01246164A true JPH01246164A (en) | 1989-10-02 |
Family
ID=13585533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7576188A Pending JPH01246164A (en) | 1988-03-29 | 1988-03-29 | Admixture for hydraulic cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01246164A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1308428A3 (en) * | 2001-11-05 | 2006-06-21 | Degussa AG | Corrosion inhibitor for steel-reinforced concrete |
| WO2012124716A1 (en) | 2011-03-15 | 2012-09-20 | 花王株式会社 | Dispersing agent for hydraulic compositions |
| JP2018095516A (en) * | 2016-12-14 | 2018-06-21 | 花王株式会社 | Hydraulic composition for centrifugal molding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221742A (en) * | 1985-07-18 | 1987-01-30 | 太平洋セメント株式会社 | Cement composition |
-
1988
- 1988-03-29 JP JP7576188A patent/JPH01246164A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221742A (en) * | 1985-07-18 | 1987-01-30 | 太平洋セメント株式会社 | Cement composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1308428A3 (en) * | 2001-11-05 | 2006-06-21 | Degussa AG | Corrosion inhibitor for steel-reinforced concrete |
| WO2012124716A1 (en) | 2011-03-15 | 2012-09-20 | 花王株式会社 | Dispersing agent for hydraulic compositions |
| US9353004B2 (en) | 2011-03-15 | 2016-05-31 | Kao Corporation | Dispersant for a hydraulic composition |
| JP2018095516A (en) * | 2016-12-14 | 2018-06-21 | 花王株式会社 | Hydraulic composition for centrifugal molding |
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