| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | 一种聚羧酸系减水剂及其制备方法 | CN200710050937.X | 2007-12-21 | CN101200355A | 2008-06-18 | 赵仕林; 王为; 廖洋; 马俊; 马玉洁; 刘佩 |
| 本发明公开了一种聚羧酸系减水剂，它的分子链中含有至少两种不同长度的聚氧乙烯基侧链。该聚羧酸系减水剂不仅减水率高，且具有优良的塑化效果，可自主控制混凝土净浆流动度和经时净浆流动度变化等，可克服现有技术减水剂对水泥塑化效果控制不佳，减水率不高等问题。同时，本发明聚羧酸系减水剂不含氯离子，对钢筋无腐蚀性；适应性强，可适应于多种规格、型号的水泥；性能稳定，长期储存不分层、无沉淀，冬季无结晶；产品无毒无污染，不含甲醛，对环境安全。本发明还公开了一种上述聚羧酸系减水剂的制备方法。 | ||||||
| 22 | 一种液态、无氯、早强防冻型聚羧酸盐复合减水剂及制备方法 | CN200710190297.2 | 2007-11-26 | CN101186462A | 2008-05-28 | 冉千平; 毛永琳; 刘加平; 沙建芳; 缪昌文; 洪锦祥 |
| 本发明涉及一种液态、无氯、早强防冻型聚羧酸盐复合减水剂及制备方法，所述减水剂由下列组分按重量百分比配制而成：早强型聚羧酸盐减水剂6－12％、有机防冻组份4－10％、有机早强组份1.5－3％、无机早强催化剂10－25％、引气组份0.3－0.5％、其余为水。其制备方法是按各组份的重量百分比称量各组份，然后一起放在搅拌反应釜中慢速搅拌10－30分钟即得。本发明的添加量为胶凝材料用量的1.0～3.0％，与基准混凝土相比，减水率可达20％以上，混凝土长期强度也有明显增长，可用于配制C20～C80的各种强度等级混凝土，具有良好的抗冻性能，可用于日最低气温－20℃以上施工的混凝土。 | ||||||
| 23 | 含聚羧酸系的复合活化水泥增强助磨剂及其制法 | CN200710158401.X | 2007-11-19 | CN101182149A | 2008-05-21 | 李军; 邵月玲; 李冬; 唐凤娟 |
| 本发明涉及一种水泥增强助磨剂，含聚羧酸系的复合活化水泥增强助磨剂，含有酯化催化剂、阻聚剂、引发剂、助磨剂、活化剂、增强剂、调和剂和链转移剂，不含氯离子。本发明含聚羧酸系的复合活化水泥增强助磨剂是通过高效磁化活化和复合技术合成的中性高效复合水泥添加剂。采用无机增强组份与优选的表面活性剂和抗静电剂复合制备而成，无毒、无害，无刺激性，无氯，阻燃，无腐蚀性，产品属“绿色”产品。使用时其用量为水泥质量的0.015～0.025％；能提高磨机台时产量10％～25％。水泥28天强度可增加4～8MPa，3天强度增加2～4MPa。 | ||||||
| 24 | 混凝土养护剂 | CN96103273.1 | 1996-03-18 | CN1134405A | 1996-10-30 | 许泽苍; 周文华 |
| 本发明的混凝土养护剂由成膜剂、改性剂组成的混凝土养护剂，其特征在于，所说的养护剂配方，按百份重量计，其范围是：硅酸钠 20.5～26.5碳酸胺 0.3～1.8硅酸铝 0.03～0.10余量为水份由于本发明采用了新的促进剂，并增加成膜剂，消除了氯盐的有害作用和不必要的组份，从而提高了混凝土养护剂的性能。使所养护的混凝土整体强度和面层强度得到提高。 | ||||||
| 25 | Chemical admixture for cementitious compositions | US10877314 | 2004-06-24 | US20050051058A1 | 2005-03-10 | Semyon Shimanovich |
| A non-chloride powder admixture that, when added to concrete, substantially reduces the setting time for concrete and increases the strength of the concrete is provided. The powder admixture preferably comprises a calcium aluminate compound (e.g., SECAR 51) and a lithium carbonate compound. The calcium aluminate compound preferably has at least 51.7% alumina. In some embodiments, a surfactant may be added to the mixture of the calcium aluminate compound and the lithium carbonate compound. In some embodiments, the powder admixture may be blended with a cementitious material, such as fly ash or slag. Upon adding water to the admixture and cementitious material mixture, both the setting time of the mixture reduces and the strength of the mixture increases as compared to the setting time and strength of the cementitious material without the powder admixture. | ||||||
| 26 | Sulfate-free and alkali-free setting and hardening accelerator | US09881685 | 2001-06-18 | US06540826B2 | 2003-04-01 | Marcel Sommer; Franz Wombacher; Theodor A. Burge |
| Described are setting and hardening accelerators for hydraulic binders and said binder comprising compositions that are free of sulfates, alkali metals and chlorides. The setting and hardening accelerators comprise, as main component, water-soluble fluoride comprising aluminum salts and optionally complexing agents and/or amines. In comparison with alkaline accelerators, said accelerators result in an essential shortening of the setting time and a fast development of compressive strengths. In comparison with commercially available alkali-free accelerators based on aluminum sulfate and organic acids, by the accelerator of the present invention the later formation of ettringite is prevented. | ||||||
| 27 | Stabilized setting and hardening accelerator of low viscosity | US09697351 | 2000-10-27 | US06514327B1 | 2003-02-04 | Theodor A. Bürge; Marcel Sommer; Franz Wombacher |
| Described are liquid setting and hardening accelerators for hydraulic binders and such binder comprising mixtures that preferably are alkali-free and chloride-free and that do not comprise any basic features. The setting accelerators comprise as components aluminum salts, complexing agents, corrosion inhibitors and optionally inorganic and/or organic thickening or thixotropic agents. In comparison with the use of alkaline accelerators, an essential reduction in the setting time and a faster development of high compressive strengths is achieved by the accelerators of the present invention. In comparison with commercially available alkali-free accelerators solid precipitates of aluminum salts and thereby generated plugging up of the spray nozzles is avoided and the corrosion at the spraying devices is eliminated. Said advantages result in a great economic advantage due to less maintenance needed for the devices and less interruptions of work. | ||||||
| 28 | Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor | US09912182 | 2001-07-24 | US20020005148A1 | 2002-01-17 | John Moreau; Runhai Lu; Jeffrey Bury; Thomas M. Vickers JR. |
| A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures. | ||||||
| 29 | Process for accelerating the setting and hardening of material which contains a hydraulic binder, setting and hardening accelerator and use of a mixture for accelerating the setting and hardening | US354144 | 1994-12-06 | US5560774A | 1996-10-01 | Theodor A. B urge; Klemens B osch; Dieter Mai |
| In a process for accelerating the setting and hardening of a material which contains a hydraulic binder or which consists of a hydraulic binder there is used a setting accelerator mixture which is free of alkali metals and free of chlorides. Said setting accelerating mixture contains at least one water soluble sulfate of a polyvalent cation and a further constituent which is selected from the group consisting of calcium aluminate, calcium sulfoaluminate, basic aluminum salts, mixtures thereof or mixtures containing at least one of said constituents and a further component. If the water soluble sulfate of the polyvalent cation is aluminum sulfate, then said compound has to contain crystal water in order to provide the water solubility of said product. With the setting accelerating mixtures, a fast gaining of strength of a corresponding mortar or concrete is achieved and the finally hardened product has better mechanical characteristics then corresponding products prepared without the adding of any set accelerating admixture. | ||||||
| 30 | Chloride-free hardening accelerant for portland cement and process thereof | US940425 | 1986-12-11 | US4747877A | 1988-05-31 | Hans-Ruediger Braun |
| This invention relates to a chloride-free hardening accelerant for Portland cement which is active in particular at low temperatures and contains calcium nitrate, sodium nitrate, hexamethylenetetramine and sodium hydroxide. The accelerant is prepared by reacting the calculated amount of formaldehyde with calcium ammonium nitrate in aqueous solution at between room temperature and 55.degree. C. under alkaline conditions established with sodium hydroxide. After the reaction had ended this solution can be used directly as such or be converted into a powder by means of a suitable drying operation. | ||||||
| 31 | Pre-blend cement compositions containing non-chloride accelerators | US10959880 | 2004-10-07 | US07247201B2 | 2007-07-24 | Ronald Barbour |
| The present invention relates to pre-blend cement for general-purpose concrete construction containing Class-F fly ash, Class-C fly ash or slag, and less than about 5 percent (w/w) of sodium thiocyanate (NaSCN) and/or calcium nitrate (Ca(NO3)2), as a substantial replacement for cement. The sodium thiocyanate and/or calcium nitrate are additives for improved high early strength and accelerated setting times, thereby allowing the concrete structure to be put into service sooner, reducing labor cost, and allowing precast concrete and concrete masonry manufacturers to achieve rapid form and mold turnover. | ||||||
| 32 | Concrete compositions | US11084186 | 2005-03-21 | US20060207479A1 | 2006-09-21 | Felix Hughes |
| A concrete for making articles such as fixtures, furniture and other accoutrements having high compressive and resistive strengths, good machining, cutting and abrasion resistance properties and an aesthetically pleasing finish. This concrete is obtained through mixing a composition comprising hydraulic binder, aggregate, pozzolan, a dispersant, fibres, a pozzonically reactive and/or inert filler, water and preferably a non-chloride set accelerator. | ||||||
| 33 | Pre-blend cement compositions containing non-chloride accelerators | US10959880 | 2004-10-07 | US20060075929A1 | 2006-04-13 | Ronald Barbour |
| The present invention relates to pre-blend cement for general-purpose concrete construction containing Class-F fly ash, Class-C fly ash or slag, and less than about 5 percent (w/w) of sodium thiocyanate (NaSCN) and/or calcium nitrate (Ca(NO3)2), as a substantial replacement for cement. The sodium thiocyanate and/or calcium nitrate are additives for improved high early strength and accelerated setting times, thereby allowing the concrete structure to be put into service sooner, reducing labor cost, and allowing precast concrete and concrete masonry manufacturers to achieve rapid form and mold turnover. | ||||||
| 34 | Concrete admixture and use in low temperatures | US10774302 | 2004-02-06 | US20050172863A1 | 2005-08-11 | Lawrence Terzo |
| A novel admixture including an accelerator and a corrosion inhibitor, that accelerates the time required to set a concrete mixture at low temperature even in concrete containing a pozzolan such as fly ash. A suitable accelerator includes a mixture of a non-chloride type accelerator and a nitrite-based corrosion inhibitor. | ||||||
| 35 | Alkali-free setting and hardening accelerator | US09881731 | 2001-06-18 | US06537367B2 | 2003-03-25 | Marcel Sommer; Franz Wombacher; Theodor A. Bürge |
| Described are setting and hardening accelerators for hydraulic binders and said binder comprising compositions that are free of alkali metals and chlorides. The setting and hardening accelerators comprise, as main component, water-soluble fluoride comprising aluminum salts and water-soluble sulfate comprising aluminum salts, as well as optionally complexing agents and/or amines. In comparison with alkaline accelerators, said mixtures result in an essential shortening of the setting time and a fast development of compressive strengths. | ||||||
| 36 | Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor | US91218201 | 2001-07-24 | US6391106B2 | 2002-05-21 | MOREAU JOHN; LU RUNHAI; BURY JEFFREY R; VICKERS JR THOMAS M |
| A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures. | ||||||
| 37 | Alkali-free setting and hardening accelerator | US09881731 | 2001-06-18 | US20020035952A1 | 2002-03-28 | Marcel Sommer; Franz Wombacher; Theodor A. Burge |
| Described are setting and hardening accelerators for hydraulic binders and said binder comprising compositions that are free of alkali metals and chlorides. The setting and hardening accelerators comprise, as main component, water-soluble fluoride comprising aluminum salts and water-soluble sulfate comprising aluminum salts, as well as optionally complexing agents and/or amines. In comparison with alkaline accelerators, said mixtures result in an essential shortening of the setting time and a fast development of compressive strengths. | ||||||
| 38 | Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor | US09371627 | 1999-08-11 | US06290770B1 | 2001-09-18 | John Moreau; Runhai Lu; Jeffrey R. Bury; Thomas M. Vickers, Jr. |
| A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures. | ||||||
| 39 | Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor | US078866 | 1998-05-14 | US6008275A | 1999-12-28 | John Moreau; Runhai Lu; Jeffrey R. Bury |
| A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. | ||||||
| 40 | RETARDING MIXTURE FOR ALKALI-ACTIVATED BINDING AGENTS | US15552928 | 2016-03-14 | US20180072623A1 | 2018-03-15 | PETER BLAUM; FRANK BULLERJAHN; MACIE J ZAJAC |
| The invention relates to a retarding mixture comprising sodium gluconate and alkali hydrogen carbonate, an alkali-activated binding agent containing sodium gluconate and alkali hydrogen carbonate and a method for adjusting the strength development, wherein sodium gluconate and alkali hydrogen carbonate are added to an alkali-activated binding agent. | ||||||
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