JPH08231256A - Cement dispersing agent - Google Patents
Cement dispersing agentInfo
- Publication number
- JPH08231256A JPH08231256A JP3988495A JP3988495A JPH08231256A JP H08231256 A JPH08231256 A JP H08231256A JP 3988495 A JP3988495 A JP 3988495A JP 3988495 A JP3988495 A JP 3988495A JP H08231256 A JPH08231256 A JP H08231256A
- Authority
- JP
- Japan
- Prior art keywords
- salt
- salts
- acid
- sulfonic acid
- component
- 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
- 239000004568 cement Substances 0.000 title claims description 18
- 239000002270 dispersing agent Substances 0.000 title claims description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 31
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 27
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims abstract description 7
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 5
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229950000244 sulfanilic acid Drugs 0.000 claims abstract description 5
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims abstract description 4
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001577 copolymer Polymers 0.000 claims abstract description 3
- 229920005610 lignin Polymers 0.000 claims abstract description 3
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 claims description 2
- 229940005642 polystyrene sulfonic acid Drugs 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000007859 condensation product Substances 0.000 abstract 3
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- -1 For details Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 description 1
- 229940008406 diethyl sulfate Drugs 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/40—Surface-active agents, dispersants
- C04B2103/408—Dispersants
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はセメント分散剤に関し、
詳しくは、製品の表面美観性を改善したコンクリート、
及びモルタル用セメント分散剤に関する。The present invention relates to a cement dispersant,
For details, concrete with improved surface aesthetics,
And a cement dispersant for mortar.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】従来、例
えばテトラポットなどのコンクリート二次製品の製造に
は、次のような工法が採られていた。すなわち、セメン
ト、砂、砂利、水等を混合したセメント含有物質を型枠
内に注入した後に、内部または外部振動機により型枠内
のセメント含有物質中から空隙を追い出し型枠内に最密
充填する工法が採られていた。また、高強度製品を得る
ために、単位水量を減じてもセメント含有物質の流動性
を保ち、かつ振動による充填性を改善できる高性能減水
剤が一般に使用されていた。2. Description of the Related Art Conventionally, the following construction method has been adopted in the production of concrete secondary products such as tetrapots. That is, after injecting the cement-containing substance mixed with cement, sand, gravel, water, etc. into the form, the voids are expelled from the cement-containing substance in the form by the internal or external vibrator, and the form is most closely packed. The construction method was adopted. Further, in order to obtain a high-strength product, a high-performance water reducing agent has been generally used, which can maintain the fluidity of the cement-containing substance even when the unit water amount is reduced and can improve the filling property by vibration.
【０００３】しかし、この工法では、大きな空隙は振動
により取り除くことができるものの、型枠とコンクリー
ト製品との間に空気泡が残ったり、製品の一部が型枠に
付着し、これによりコンクリート製品の表面の美観は著
しく悪いものとなっていた。この欠点を解消するため、
特公平５−２６７４０号公報において、メラミン系の減
水剤にジアルキルスルホコハク酸塩を併用した処方が記
載されている。However, in this construction method, although large voids can be removed by vibration, air bubbles remain between the formwork and the concrete product, or a part of the product adheres to the formwork, which results in the concrete product. The aesthetics of the surface of was very bad. To eliminate this drawback,
Japanese Examined Patent Publication (Kokoku) No. 5-26740 discloses a formulation in which a melamine-based water reducing agent is used in combination with a dialkylsulfosuccinate.
【０００４】この工法により、確かに大きな空気泡は少
なくなるが、微小気泡は依然として多く残り、これが原
因で表面美観を損ねているのが実情である。By this method, large air bubbles are surely reduced, but a large amount of fine bubbles still remain, which is the fact that the appearance of the surface is spoiled.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明者等は、
コンクリート表面から微小気泡をも排除すべく鋭意研究
を重ね、そして本発明に至った。Therefore, the present inventors have
As a result of intensive research to eliminate even minute bubbles from the concrete surface, the present invention has been achieved.
【０００６】すなわち、本発明のセメント分散剤は、下
記の成分（１）、成分（２）、及び成分（３）よりな
る。That is, the cement dispersant of the present invention comprises the following components (1), (2) and (3).
【０００７】（１）下記（Ａ）〜（Ｆ）より選ばれた少
なくとも１種８０．００〜９９．８５重量％（以下、単
に「％」という）、（Ａ）アルキル基置換もしくは非置
換のナフタレンスルホン酸のホルマリン縮合物またはそ
の塩、（Ｂ）メラミンスルホン酸のホルマリン縮合物ま
たはその塩、（Ｃ）リグニンスルホン酸またはその塩、
（Ｄ）スルファニル酸ホルマリン縮合物またはその塩、
（Ｅ）スルホン化スチレン−無水マレイン酸共重合体ま
たはその塩、（Ｆ）ポリスチレンスルホン酸またはその
塩、 （２）ジアルキルスルホコハク酸またはその塩０．１０
〜１０．００％、 （３）カチオン界面活性剤０．０５〜１０．００％。(1) At least one kind selected from the following (A) to (F): 80.00 to 99.85% by weight (hereinafter, simply referred to as "%"), (A) alkyl group-substituted or unsubstituted Formalin condensate of naphthalene sulfonic acid or its salt, (B) Formalin condensate of melamine sulfonic acid or its salt, (C) Lignin sulfonic acid or its salt,
(D) Sulfanilic acid formalin condensate or a salt thereof,
(E) Sulfonated styrene-maleic anhydride copolymer or its salt, (F) Polystyrene sulfonic acid or its salt, (2) Dialkylsulfosuccinic acid or its salt 0.10
˜10.00%, (3) Cationic surfactant 0.05 to 10.00%.
【０００８】以下、成分（１）、成分（２）及び成分
（３）について順次説明する。The components (1), (2) and (3) will be described below in order.
【０００９】成分（１） 本発明のセメント分散剤における成分（１）は、上記し
た（Ａ）〜（Ｆ）の中から選ばれた少なくとも１種以上
である。その中でも、（Ａ）成分を使用することが高減
水性、経済性の点で好ましい。この（Ａ）は、ナフタレ
ンスルホン酸のホルマリン縮合物又はその塩であり、ナ
フタレン環における水素原子の一部あるいは全部が、ア
ルキル基により置換されていてもよく、置換されてなく
てもよい。このアルキルとしては特に限定はないが、炭
素数１〜３のアルキル基（メチル基、エチル基、プロピ
ル基）であることが好ましい。 Component (1) The component (1) in the cement dispersant of the present invention is at least one selected from the above (A) to (F). Among them, it is preferable to use the component (A) in terms of high water reducing property and economy. This (A) is a formalin condensate of naphthalene sulfonic acid or a salt thereof, and some or all of the hydrogen atoms in the naphthalene ring may or may not be substituted with an alkyl group. The alkyl is not particularly limited, but is preferably an alkyl group having 1 to 3 carbon atoms (methyl group, ethyl group, propyl group).
【００１０】なお、成分（１）における塩としては、ナ
トリウム塩、カリウム塩などのアルカリ金属塩、カルシ
ウム塩などのアルカリ土類金属塩、あるいはアンモニウ
ム塩が好ましい。The salt in component (1) is preferably an alkali metal salt such as sodium salt or potassium salt, an alkaline earth metal salt such as calcium salt, or an ammonium salt.
【００１１】また成分（１）における数平均分子量とし
ては特に限定はないが、２，０００〜２０，０００のも
のが好ましく、８，０００〜１２，０００のものがさら
に好ましい。数平均分子量が２，０００未満であっても
２０，０００を超えても減水効果が得られにくい。The number average molecular weight of the component (1) is not particularly limited, but it is preferably 2,000 to 20,000, more preferably 8,000 to 12,000. If the number average molecular weight is less than 2,000 or more than 20,000, it is difficult to obtain the water reducing effect.
【００１２】成分（２） 成分（２）は、ジアルキルスルホコハク酸またはその塩
である。この化合物におけるアルキル基としては、ｎ−
ブチル、イソブチル、ｎ−アミル、ヘキシル、シクロヘ
キシル、ｎ−オクチル、２−エチルヘキシル、ノニル、
デシル、トリデシル等がある。この化合物における２つ
のアルキル基は、互いに同じであってもよいし異なって
いてもよい。 Component (2) Component (2) is dialkylsulfosuccinic acid or a salt thereof. The alkyl group in this compound is n-
Butyl, isobutyl, n-amyl, hexyl, cyclohexyl, n-octyl, 2-ethylhexyl, nonyl,
Decyl, tridecyl, etc. The two alkyl groups in this compound may be the same or different from each other.
【００１３】また、塩としては、カリウム、ナトリウム
等のアルカリ金属、カルシウム、マグネシウム等のアル
カリ土類金属の他に、アンモニウム、メチルアミン、エ
チルアミン、モノエタノールアミン、ジエタノールアミ
ン等のアミン類を用いることができる。As salts, in addition to alkali metals such as potassium and sodium, alkaline earth metals such as calcium and magnesium, amines such as ammonium, methylamine, ethylamine, monoethanolamine and diethanolamine are used. it can.
【００１４】成分（３） 成分（３）のカチオン界面活性剤には、第１級、第２
級、及び第３級（以下、「第１〜３級」という）アミン
塩型と４級アンモニウム塩型が含まれる。[0014] Component (3) is the cationic surfactant of the component (3), primary, secondary,
Grade, and tertiary (hereinafter referred to as “first to third”) amine salt type and quaternary ammonium salt type are included.
【００１５】第１〜３級アミン塩型としては、高級アル
キルアミン塩、高級アルキルアミンエチレンオキサイド
付加物、トリエタノールアミン脂肪酸エステルの塩、ア
ルキルアミドエチルジエチルアミンの塩、イミダゾリン
型カチオン界面活性剤等が挙げられる。Examples of the primary to tertiary amine salt types include higher alkylamine salts, higher alkylamine ethylene oxide adducts, triethanolamine fatty acid ester salts, alkylamidoethyldiethylamine salts, imidazoline type cationic surfactants and the like. Can be mentioned.
【００１６】また、４級アンモニウム塩としては、アル
キルトリメチルアンモニウム塩、アルキルジメチルベン
ジルアンモニウム塩、アルキルピリジウム塩、アルキル
ジメチルエチルアンモニウム塩等が挙げられる。Examples of the quaternary ammonium salt include alkyl trimethyl ammonium salt, alkyl dimethyl benzyl ammonium salt, alkyl pyridium salt and alkyl dimethyl ethyl ammonium salt.
【００１７】上記例示の中における「アルキル」の炭素
数については、いずれも３〜１２であることが、以下に
述べる界面張力を低下させるという点で好適である。Regarding the number of carbon atoms of "alkyl" in the above examples, it is preferable that the carbon number is in the range of 3 to 12 in order to reduce the interfacial tension described below.
【００１８】上記のカチオン界面活性剤（３）の塩とし
ては、塩酸塩、臭酸塩、ジメチル硫酸塩、ジエチル硫酸
塩等のイオンがある。The salt of the above-mentioned cationic surfactant (3) includes ions such as hydrochloride, hydrobromide, dimethylsulfate and diethylsulfate.
【００１９】本発明のセメント分散剤を添加したコンク
リートおよびモルタル等の表面美観性が良い理由を簡単
に説明すると次の通りである。すなわち、セメントペー
ストと離型剤間の界面張力が低下しているため、セメン
トペーストと離型剤の親和性が良くなり、型枠上の小さ
な空気泡はセメントペーストと置きかわり、内部へ移行
する。これにより、製品の表面美観性が良くなる。The reason why the surface appearance of concrete, mortar, etc. to which the cement dispersant of the present invention is added is good will be briefly described as follows. That is, since the interfacial tension between the cement paste and the mold release agent is lowered, the affinity between the cement paste and the mold release agent is improved, and small air bubbles on the mold are replaced with the cement paste and migrate to the inside. . This improves the surface aesthetics of the product.
【００２０】前記のジアルキルスルホコハク酸塩とカチ
オン界面活性剤を併用すると塩を形成し、界面において
各分子間のイオン間引力、疎水基間引力により最密充填
となり界面張力は大きく低下する。さらにカチオン界面
活性剤はジアルキルスルホコハク酸塩の持つ起泡力を低
下させる働きがあることから空気量（薬剤の力（界面活
性能力）によりコンクリート中へ引き込まれる空気量）
が少ない等の利点がある。When the above-mentioned dialkylsulfosuccinate and a cationic surfactant are used in combination, a salt is formed, and at the interface, the interionic attraction between each molecule and the hydrophobic attraction causes close packing, resulting in a large decrease in interfacial tension. Furthermore, since the cationic surfactant has the function of reducing the foaming power of the dialkyl sulfosuccinate, the amount of air (the amount of air drawn into the concrete due to the force of the agent (surface activity))
There are advantages such as less.
【００２１】しかしながら、このような作用効果も、成
分（１）が８０．００〜９９．８５％、成分（２）が
０．１０〜１０．００％、また成分（３）が０．０５〜
１０．００％といった特定の配合割合の範囲において奏
されるものであり、この範囲を逸脱すると、次のような
難点が生じる。However, also with respect to such effects, the component (1) is 80.00 to 99.85%, the component (2) is 0.10 to 10.00%, and the component (3) is 0.05 to 0.05%.
The present invention is performed within the range of a specific blending ratio such as 10.00%, and if it deviates from this range, the following problems occur.
【００２２】すなわち、成分（１）が８０．００％未満
であると減水効果が大きく低下し、９９．８５％以上に
なると表面美観性が悪くなる。なお、成分（１）の好ま
しい範囲は、９２〜９８％である。That is, if the content of the component (1) is less than 80.00%, the water-reducing effect is greatly reduced, and if it is 99.85% or more, the surface aesthetics is deteriorated. In addition, the preferable range of the component (1) is 92 to 98%.
【００２３】成分（２）が０．１０％未満であると界面
張力の低下が不足し表面美観性は悪くなり、１０．００
％以上であると連行空気量が大きくなりすぎる。なお、
成分（２）の好ましい範囲は、１．０〜６．０％であ
る。When the content of the component (2) is less than 0.10%, the interfacial tension is insufficiently reduced, resulting in poor surface aesthetics.
If it is more than%, the entrained air amount becomes too large. In addition,
The preferable range of the component (2) is 1.0 to 6.0%.
【００２４】成分（３）が０．０５％未満であるとジア
ルキルスルホコハク酸塩と塩を作り界面張力を低下させ
るという相乗効果が少なくなり、１０．００％以上であ
るとイオン対を形成し沈殿物を生じ易くなる。なお、成
分（３）の好ましい範囲は、０．１〜６．０％である。If the content of the component (3) is less than 0.05%, the synergistic effect of forming a salt with a dialkylsulfosuccinate to reduce the interfacial tension is reduced, and if it is more than 10.00%, an ion pair is formed to cause precipitation. It is easy to produce things. In addition, the preferable range of the component (3) is 0.1 to 6.0%.
【００２５】[0025]
【実施例】次に本発明を実施例を挙げて説明するが、本
発明はこれらの実施例に限定されるものではない。EXAMPLES The present invention will now be described with reference to examples, but the present invention is not limited to these examples.
【００２６】実施例１〜５および比較例１〜５ 下記の［表１］［表２］に示す成分（１）、成分（２）
および成分（３）を、同表に示す割合で以て配合して均
一に混合し、本発明のセメント分散剤組成物を得た。 Examples 1-5 and Comparative Examples 1-5 Component (1) and component (2) shown in [Table 1] and [Table 2] below.
The component (3) and the component (3) were blended in a ratio shown in the same table and uniformly mixed to obtain a cement dispersant composition of the present invention.
【００２７】なお、ナフタリンスルホン酸ホルマリン縮
合物のナトリウム塩は固形分４０％の水溶液を、メラミ
ンスルホン酸ホルマリン縮合物のナトリウム塩は固形分
３５％の水溶液を、スルファニル酸ホルマリン縮合物
（以上、成分１）は固形分３５％のナトリウム塩水溶液
をそれぞれ使用した。また、ジアルキルスルホコハク酸
ナトリウム（成分２）は３０％の水溶液を、カチオン界
面活性剤（成分３）は固形分１００％をそれぞれ使用し
た。The sodium salt of naphthalene sulfonic acid formalin condensate is an aqueous solution having a solid content of 40%, the sodium salt of melamine sulfonic acid formalin condensate is an aqueous solution having a solid content of 35%, and a sulfanilic acid formalin condensate (these are the components. In 1), a sodium salt aqueous solution having a solid content of 35% was used. A 30% aqueous solution of sodium dialkylsulfosuccinate (component 2) was used, and a solid content of 100% was used as the cationic surfactant (component 3).
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【表２】 [Table 2]
【００３０】一方、下記［表３］に示す成分を、同表に
示す割合で配合し、コンクリートとして練り上げた。On the other hand, the components shown in the following [Table 3] were mixed in the proportions shown in the same table and kneaded into concrete.
【００３１】[0031]
【表３】 [Table 3]
【００３２】上記にて得られたセメント分散剤組成物
を、下記［表４］に示す配合比で以て前記コンクリート
に均一に混合した。次いで、スランプ、空気量を測定し
たのち、直径１０×高さ２０ｃｍの円柱状型枠内に充填
し（離型剤としてスピンドル油＃６０を塗布してい
る）、テーブルバイブレーターにて振動後、養生脱型し
て表面美観性の評価を行った。その結果を［表４］に併
記する。The cement dispersant composition obtained above was uniformly mixed with the concrete at the compounding ratio shown in the following [Table 4]. Then, after measuring the slump and the amount of air, it was filled into a cylindrical mold having a diameter of 10 and a height of 20 cm (spindle oil # 60 was applied as a mold release agent), and after vibrating with a table vibrator, curing was performed. After demolding, the surface aesthetics were evaluated. The results are also shown in [Table 4].
【００３３】空気量：コンクリートと分散剤とを混合し
て撹拌した際に抱き込んだ空気量である。 スランプ：セメントの軟らかさを示す指標であり、この
値が大きいほど、軟らかいことを意味する。対照評価の
際には、この値をできる限り統一させる。Amount of air: The amount of air entrapped when the concrete and the dispersant are mixed and stirred. Slump: It is an index showing the softness of cement, and the larger this value, the softer it is. This value should be unified as much as possible during the control evaluation.
【００３４】[0034]
【表４】 [Table 4]
【００３５】[0035]
【発明の効果】本発明のセメント分散剤により、表面美
観性が良好で、低空気量のコンクリートが得られる。EFFECT OF THE INVENTION The cement dispersant of the present invention makes it possible to obtain concrete having a good surface aesthetic appearance and a low air content.
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 24/26 Ｃ０４Ｂ 24/26 Ｇ 24/30 24/30 Ａ // Ｃ０４Ｂ 103:40 Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI Technical display location C04B 24/26 C04B 24/26 G 24/30 24/30 A // C04B 103: 40
Claims (1)
なくとも１種８０．００〜９９．８５重量％、（Ａ）ア
ルキル基置換もしくは非置換のナフタレンスルホン酸の
ホルマリン縮合物またはその塩、（Ｂ）メラミンスルホ
ン酸のホルマリン縮合物またはその塩、（Ｃ）リグニン
スルホン酸またはその塩、（Ｄ）スルファニル酸ホルマ
リン縮合物またはその塩、（Ｅ）スルホン化スチレン−
無水マレイン酸共重合体またはその塩、（Ｆ）ポリスチ
レンスルホン酸またはその塩、 （２）ジアルキルスルホコハク酸またはその塩０．１０
〜１０．００重量％、 （３）カチオン界面活性剤０．０５〜１０．００重量％
からなることを特徴とするセメント分散剤。(1) At least one kind selected from the following (A) to (F): 80.00 to 99.85% by weight, (A) a formalin condensate of an alkyl group-substituted or unsubstituted naphthalenesulfonic acid. Or a salt thereof, (B) melamine sulfonic acid formalin condensate or a salt thereof, (C) lignin sulfonic acid or a salt thereof, (D) sulfanilic acid formalin condensate or a salt thereof, (E) sulfonated styrene-
Maleic anhydride copolymer or its salt, (F) Polystyrene sulfonic acid or its salt, (2) Dialkyl sulfosuccinic acid or its salt 0.10
~ 10.00% by weight, (3) Cationic surfactant 0.05 to 10.00% by weight
A cement dispersant characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3988495A JPH08231256A (en) | 1995-02-28 | 1995-02-28 | Cement dispersing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3988495A JPH08231256A (en) | 1995-02-28 | 1995-02-28 | Cement dispersing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08231256A true JPH08231256A (en) | 1996-09-10 |
Family
ID=12565412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3988495A Pending JPH08231256A (en) | 1995-02-28 | 1995-02-28 | Cement dispersing agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08231256A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100709669B1 (en) * | 2006-09-01 | 2007-04-19 | 김준식 | A compound for concreat and nontoxic concreat using the above compound |
| CN102492074A (en) * | 2011-11-24 | 2012-06-13 | 华东理工大学 | Comb type copolymer with side chains grafted with naphthalene sulfonic acid groups, preparation method thereof and application thereof |
| JP2017119761A (en) * | 2015-12-28 | 2017-07-06 | 花王株式会社 | Composition |
| CN107108356A (en) * | 2015-03-17 | 2017-08-29 | 花王株式会社 | Dispersant for hydraulic composition composition |
| 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 |
-
1995
- 1995-02-28 JP JP3988495A patent/JPH08231256A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100709669B1 (en) * | 2006-09-01 | 2007-04-19 | 김준식 | A compound for concreat and nontoxic concreat using the above compound |
| CN102492074A (en) * | 2011-11-24 | 2012-06-13 | 华东理工大学 | Comb type copolymer with side chains grafted with naphthalene sulfonic acid groups, preparation method thereof and application thereof |
| CN107108356A (en) * | 2015-03-17 | 2017-08-29 | 花王株式会社 | Dispersant for hydraulic composition composition |
| EP3272722A4 (en) * | 2015-03-17 | 2018-11-21 | Kao Corporation | Dispersant composition for hydraulic composition |
| US10322967B2 (en) | 2015-03-17 | 2019-06-18 | Kao Corporation | Dispersant composition for hydraulic composition |
| JP2017119761A (en) * | 2015-12-28 | 2017-07-06 | 花王株式会社 | Composition |
| 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 |
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