JP2000511151A - Multipurpose mixtures for hydraulic cement compositions - Google Patents

Abstract

  (57) [Summary] The exemplary multifunctional hydraulic cement composition mixture of the present invention comprises a set accelerator, preferably a calcium salt, and a fatty acid aminosulfonic acid surfactant. Another exemplary mixture further comprises a water reducing agent, such as a lignosulfonate, and / or an early strength enhancer, such as an alkanolamine.

Description

DETAILED DESCRIPTION OF THE INVENTION       Multipurpose mixtures for hydraulic cement compositions                                Field of the invention   The present invention relates to mixtures for hydraulic cement compositions, and more particularly to accelerated hardening. And a multifunctional mixture having both air carrying properties.                                Background of the Invention   The term "hydraulic cement" is a substance that hardens due to chemical interaction or reaction with water. Called cement. Adding certain properties of hydraulic cement to the addition of several chemical additives It is widely known that it can be modified by addition. For example, nitric acid as a curing accelerator It is known to add lucium. However, calcium nitrate is hydratable Combined with other types of additives, chemicals and reagents in a workable cement mixture May be incompatible at times. In the present invention, the inventor has set a hydraulic cement group. Discover new combinations of chemical additives to obtain many properties simultaneously in products did.                                Summary of the Invention   The invention is a salt of an organic or inorganic acid, which is an alkali or alkaline earth metal salt. Multifunctional comprising certain curing accelerator and fatty acid aminosulfonic acid surfactant It relates to a hydraulic cement composition mixture.   In a preferred embodiment, the set accelerator is a calcium salt such as calcium nitrate, salt Calcium calcium, calcium formate, or calcium nitrite, and fatty acids Aminosulfonic acid has the general formula             CH_Three(CH_Two)_x-CH = CH (CH_Two)_y-CO-NR- (CH_Two)_z-SO_Three-M^{n +} [Where, "R" is hydrogen, an alkyl group or an aryl group, “X” is 1-10, "Y" is 3-10, “Z” is 1-10, “M” is an alkali or alkaline earth metal, ammonium, or alkyl Ammonium ion, And “N” is 1-3] Having.   In another suitable mixed formulation, the set accelerator comprises calcium nitrate and The surfactant is sodium N-methyl oleoyl taurate (sodium N-methyl o leoyl taurate), which has the formula            CH_Three(CH_Two)₇-CH = CH (CH_Two)₇-CO-N (CH_Three) CH_TwoCH_TwoSO_Three ^-Na⁺ Is believed to have   Other suitable multi-functional hydraulic cement mixtures of the present invention further include a set accelerator and Water-reducing agents, early strength-enhancing agents, and preferably both, Become. Water weight loss agents include lignosulfonates, such as calcium lignosulfonate. May be included. The early strength enhancer is an alkanolamine, preferably trie Tanolamine.   Accordingly, the preferred multi-functional hydraulic cement composition mixture of the present invention is a hardening accelerator, Fats believed to act as weight loss agents, early strength agents, and airborne agents It can comprise a fatty acid amino sulfonic acid surfactant. One of these features The parts may be combined simultaneously in one mixed formulation, but are not described herein. All four of the functional components Not even some combinations of these functional components, such as curing accelerators and surfactants , Are not believed to be disclosed or suggested by the prior art.   The present invention further does not include the multi-functional mixtures described above and below. It also relates to hydraulic cement mixes, including concrete mixes.                           Detailed description of exemplary embodiments   The term "cement composition" as used herein includes hydraulic cement binders , Mortar, and concrete composition. The above words are industry Is a term. The paste is a hydraulic cement binder, such as Portland cement, Alone or from, for example, fly ash, fumed silica or blast furnace slag, and Combined with other ingredients, such as water and mortar, mortar also Concrete and mortar containing coarse aggregate It is. The cement composition of the present invention comprises a certain amount of necessary material, for example, hydraulic cement. Manufactured by mixing cement, water, and fine or coarse aggregates, Is also applicable to the particular cement composition being manufactured.   The term "concrete" as used herein is such a hydraulic cement and And a mixture of inert aggregates. Normal for typical aggregate "Coarse" aggregates, such as gravel, granite, limestone, quartz sieves, and general What is referred to as "fine aggregates", such as sand and fly ash. Conventional hydraulic cement concrete, such as Portland cement concrete Harden the aggregate in large quantities, i.e. more than 50% by volume and generally up to about 75%. Used in chemical products.   The present invention provides a curing accelerator component, preferably calcium nitrate, and a fatty acid aminosulfur. A sulfonic acid surfactant component, preferably sodium N-methyl oleoyltaurate, And a hydraulic cement composition mixture comprising: Another suitable mixture is water Weight loss agents such as alkanolamines and more preferably triethanolamine, An early strength-enhancing component, such as lignosulphonate and preferably lignosulphonic acid Calcium, and even more preferably, the mixture further comprises It comprises both ethanolamine and calcium lignosulfonate. mixture The components can be blended into a stable solution using conventional mixing equipment.   The setting-accelerator component is used to cure the cement composition when added to the cement composition. A compound that reduces the amount of time required to perform For example, salts of organic or inorganic acids Alkali or alkaline earth metal salts can be used. The list below is restricted Although not intended to be, examples of these compounds are alkali or alkaline earth metals. Genus nitrates, nitrites, and formate, group VII halogens and pseudohalogen acids Potassium or alkaline earth metal salts, such as alkali or alkaline earth metal chlorides , Bromide, iodide, cyanide, cyanate, azide, and thiocyanate , Alkali or alkaline earth metal thiosulfates and perchlorates, and alkali Li or alkaline earth metal aluminates, silicates, and hydroxides, such as hydroxy Sodium chloride. Calcium salts, especially calcium nitrate, calcium chloride, ants Calcium acid and calcium nitrite are particularly advantageous. Calcium nitrate It is suitable.   Hydraulic cement is believed to act as an air carrier in cement compositions Fatty acid aminosulfonic acid has the general formula             CH_Three(CH_Two)_x-CH = CH (CH_Two)_y-CO-NR- (CH_Two)_z-SO_Three-M^{n +} [Where, "R" is hydrogen, an alkyl group or an aryl group, “X” is 1-10, "Y" is 3-10, “Z” is 1-10, “M” is an alkali or alkaline earth metal, ammonium, or alkyl Ammonium ion, And “N” is 1-3] Alkali or Alkali of N-Alkyl-N-Tall Oil Aminosulfonic Acid Having It may be a lithium earth metal salt. Preferred fatty acid aminosulfonic acid surfactants are N-meth Comprising sodium chill-N-oleoyltaurate, which is Igepon (Rhone-Pou1enc) from Cranbury, G Igepon) T-33.   Water weight loss agent is lignosulfonic acid, polycarboxylic acid, naphthalenesulfonic acid condensate , Melamine sulfonic acid condensates, hydroxylated carboxylic acids, and carbohydrates Alkali or alkaline earth metal salts of corn syrup, for example. May be. Preferably, the water-reducing agent is a lignosulfonate, such as lignosulfonate Lucium.   Early strength enhancers are known as well as the term "early strength", which means that (For example, see ASTM C-39). Early strength increase Additives include alkanolamines. Arca Nolamine has a trivalent nitrogen bonded directly to the carbon atom of the alkyl alcohol A generic name for a group of compounds, and examples are monoethanolamine, die Tanolamine and triethanolamine. Alkanolamines include Methyldiethanolamine and triisopropanolamine are also included.   The preferred multi-functional mixture of the present invention is preferably based on cement in concrete. 0.05-1.0% s / s, where "% s / s" is the cement solids Shows the percentage of the mixture solids relative to. A preferred mixture is 90-9 calcium nitrate. In the range of 9.5% s / s and sodium N-methyl oleoyltaurate at 0. It may be contained in the range of 5 to 10.0% s / s. Another suitable mixture is nitric acid Calcium (50-90% s / s), calcium lignosulfonate (5.0-4 0.0% s / s), triethanolamine or triisopropanolamine ( 0.1-5.0% s / s), and sodium N-methyl oleoyl taurate (0.01-5.0% s / s).

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) C04B 22:12 24:04) 103: 14 (81) Designated country EP (AT, BE, CH, DE, DK) , ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE), OA (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE) , SN, TD, TG), AP (KE, LS, MW, SD, SZ, UG), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT , AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP , KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN

Claims (1)

[Claims] 1. Hard salts which are salts of organic or inorganic acids and which are alkali or alkaline earth metal salts Hydraulic Hydraulic Properties Comprising a Dehydration Accelerator and a Fatty Acid Aminosulfonic Acid Surfactant Cement composition mixture. 2. If the curing accelerator is calcium nitrate, calcium chloride, calcium formate, or Comprising calcium nitrate and the fatty acid aminosulfonic acid has the general formula             CH_Three(CH_Two)_x-CH = CH (CH_Two)_y-CO-NR- (CH_Two)_z-SO_Three-M^{n +} [Where, "R" is hydrogen, an alkyl group or an aryl group, “X” is 1-10, "Y" is 3-10, “Z” is 1-10, “M” is an alkali or alkaline earth metal, ammonium, or alkyl Ammonium ion, And “N” is 1-3] The mixture according to claim 1, having the formula: 3. The fatty acid aminosulfonic acid may be sodium N-methyl oleoyltaurate. 3. The mixture according to claim 2, comprising a mixture. 4. Furthermore, lignosulfonic acid, polycarboxylic acid, naphthalenesulfonic acid condensate, Melamine sulfonic acid condensate, hydroxylated carboxylic acid, or carbohydrate A water-reducing agent comprising an alkali or alkaline earth metal salt of 3. The mixture according to item 2 above. 5. 5. The blend according to claim 4, wherein said water reducing agent is calcium lignosulfonate. Compound. 6. 3. The mixture according to claim 2, further comprising an early strength enhancer. 7. 7. The method of claim 6 wherein said early strength enhancer comprises an alkanolamine. Mixture. 8. The alkanolamine is triethanolamine or triisopropanol The mixture of claim 7 comprising an amine. 9. The hardening accelerator comprises calcium nitrate; The surfactant comprises sodium N-methyl oleoyl taurate; The mixture also contains calcium lignosulfonate and triethanolamine The mixture according to claim 1, wherein the mixture comprises: 10. Portland cement, calcium salt hardening accelerator, and fatty acid aminos A hydraulic cement composition comprising a sulfonic acid surfactant. 11. The method according to claim 10, further comprising at least one kind of aggregate. Composition.