公开(公告)号：US20180044237A1

公开(公告)日：2018-02-15

申请号：US15674645

申请日：2017-08-11

Applicant: University of South Carolina

Inventor： Dimitrios Rizos

IPC: C04B14/04 ,  C04B28/08 ,  C04B28/02

CPC classification number: C04B14/048 ,  C04B28/02 ,  C04B28/021 ,  C04B28/08 ,  C04B2111/0075 ,  C04B2201/05 ,  C04B2201/52 ,  E01B3/28 ,  Y02W30/92 ,  Y02W30/94 ,  C04B18/08 ,  C04B18/141 ,  C04B18/146 ,  C04B20/0076

Abstract: Concrete that exhibits increased flexibility (i.e., low modulus of elasticity) and high compressive strength is described. High aspect ratio structures as may be formed of the concrete are described. Structures formed of the concrete can have the same high compressive strength as similar structures formed from a more conventional concrete, but can be significantly more flexible, which can allow for better load distribution in the structure and associated assembly. The concrete includes a weathered granite as course aggregate. The materials can be particularly beneficial in forming concrete components of a rail infrastructure, such as railroad ties and slabs.

公开(公告)号：US08598255B2

公开(公告)日：2013-12-03

申请号：US13000926

申请日：2009-07-16

Applicant: Toshimasa Hamai ,  Masaaki Shimoda ,  Makoto Okubo ,  Takao Taniguchi ,  Takeshi Tomifuji ,  Masato Nomura

Inventor： Toshimasa Hamai ,  Masaaki Shimoda ,  Makoto Okubo ,  Takao Taniguchi ,  Takeshi Tomifuji ,  Masato Nomura

IPC: C08K3/00 ,  C08L31/00 ,  C08F220/56

CPC classification number: C04B24/166 ,  C04B24/16 ,  C04B28/02 ,  C04B40/0039 ,  C04B2201/05 ,  C04B2103/408

Abstract: The present invention provides the early strengthening agent for hydraulic compositions containing a compound (a) obtained by reacting (A) one or more compounds selected from polyhydric alcohols having 3 to 20 hydroxy groups and alkylene oxide adducts thereof with (B) a sulfating agent, and the additive composition for hydraulic compositions containing the compound (a).

Abstract translation: 本发明提供了含有通过使（A）一种或多种选自具有3-20个羟基的多元醇和其氧化烯加成物与（B）硫酸化剂的化合物反应而获得的化合物（a）的早期强化剂， 和含有化合物（a）的水硬性组合物用添加剂组合物。

公开(公告)号：US06767399B2

公开(公告)日：2004-07-27

申请号：US10308633

申请日：2002-12-03

Applicant: Pepi Peev ,  Russell L. Hill

Inventor： Pepi Peev ,  Russell L. Hill

IPC: C04B2424

CPC classification number: C04B24/128 ,  C04B22/14 ,  C04B24/122 ,  C04B24/32 ,  C04B28/04 ,  C04B2201/05 ,  Y02W30/92 ,  C04B2103/10 ,  C04B2103/32 ,  C04B18/08 ,  C04B24/12 ,  C04B24/2641

Abstract: The present invention is an admixture for cementitious compositions that provides both good flowability and high early strength as is desired in the art. The admixture of the invention includes a superplasticizer comprising a water-soluble modified acrylic copolymer and at least one accelerant selected from the group consisting of salts of thiocyanic acid, water-soluble alkanolamines, ethylene oxide adducts of ethylenediamine, and morpholine derivatives. The combination of the superplasticizer and the accelerant used in the invention surprisingly has a synergistic effect on the early compressive strength of the cementitious composition and also enhances the W/CM ratio and the flowability of the cementitious composition.

Abstract translation: 本发明是水泥组合物的混合物，其提供了本领域所需的良好的流动性和高的早强度。 本发明的混合物包括含有水溶性改性丙烯酸共聚物和选自硫氰酸盐，水溶性链烷醇胺，乙二胺的环氧乙烷加成物和吗啉衍生物的至少一种促进剂的超增塑剂。 本发明中使用的超增塑剂和促进剂的组合令人惊奇地对水泥质组合物的早期抗压强度具有协同效应，并且还提高了水泥组合物的W / CM比和流动性。

公开(公告)号：US06713553B2

公开(公告)日：2004-03-30

申请号：US09983719

申请日：2001-10-25

Applicant: Pascal Gonnon ,  Yves Kensicher ,  Christian Jacquemet

Inventor： Pascal Gonnon ,  Yves Kensicher ,  Christian Jacquemet

IPC: C08K326

CPC classification number: C04B24/165 ,  C04B20/0084 ,  C04B20/026 ,  C04B24/246 ,  C04B24/2647 ,  C04B24/2658 ,  C04B24/267 ,  C04B24/2694 ,  C04B28/02 ,  C04B40/0028 ,  C04B40/0039 ,  C04B2103/0099 ,  C04B2103/52 ,  C04B2111/0075 ,  C04B2111/70 ,  C04B2201/05 ,  Y02W30/94 ,  C04B14/28 ,  C04B18/141 ,  C04B14/02 ,  C04B24/24 ,  C04B20/008 ,  C04B24/32 ,  C04B24/26 ,  C04B24/161 ,  C04B24/243 ,  C04B24/2605 ,  C04B24/282 ,  C04B24/2652

Abstract: Cements or hydraulic binders may be prepared by adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder. The resulting cement or hydraulic binder has very appreciably improved mechanical properties, particularly the property of “strength at young ages.” The grinding aid agent may be a natural or synthetic homopolymer and/or copolymer.

Abstract translation: 水泥或水硬性粘合剂可以通过向水泥或水硬性粘合剂中加入包含研磨矿物填料和至少一种研磨助剂的水悬浮液来制备。 所得到的水泥或水泥粘合剂具有非常明显改善的机械性能，特别是“年轻时的强度”的性能。 研磨助剂可以是天然或合成的均聚物和/或共聚物。

公开(公告)号：US06641658B1

公开(公告)日：2003-11-04

申请号：US10189879

申请日：2002-07-03

Applicant: Ashish Dubey

Inventor： Ashish Dubey

IPC: C04B1806

CPC classification number: C04B28/16 ,  C04B2201/05 ,  Y02W30/92 ,  C04B7/02 ,  C04B7/32 ,  C04B18/08 ,  C04B20/0016 ,  C04B22/064 ,  C04B22/085 ,  C04B24/06 ,  C04B24/226 ,  C04B14/12 ,  C04B2103/0088

Abstract: A rapid setting cementitious composition useful for making cement boards employs an insoluble form of anhydrous calcium sulfate (anhydrite) to accelerate setting and to permit reducing the amount of high alumina cement usage.

Abstract translation: 用于制造水泥板的快速凝固水泥组合物采用不溶形式的无水硫酸钙（无水石膏）来加速凝固并允许减少高铝水泥用量。

公开(公告)号：US20030167973A1

公开(公告)日：2003-09-11

申请号：US10308633

申请日：2002-12-03

Applicant: Boral Material Technologies, Inc.

Inventor： Pepi Peev ,  Russell L. Hill

IPC: C04B024/12

CPC classification number: C04B24/128 ,  C04B22/14 ,  C04B24/122 ,  C04B24/32 ,  C04B28/04 ,  C04B2201/05 ,  Y02W30/92 ,  C04B2103/10 ,  C04B2103/32 ,  C04B18/08 ,  C04B24/12 ,  C04B24/2641

Abstract: The present invention is an admixture for cementitious compositions that provides both good flowability and high early strength as is desired in the art. The admixture of the invention includes a superplasticizer comprising a water-soluble modified acrylic copolymer and at least one accelerant selected from the group consisting of salts of thiocyanic acid, water-soluble alkanolamines, ethylene oxide adducts of ethylenediamine, and morpholine derivatives. The combination of the superplasticizer and the accelerant used in the invention surprisingly has a synergistic effect on the early compressive strength of the cementitious composition and also enhances the W/CM ratio and the flowability of the cementitious composition.

Abstract translation: 本发明是水泥组合物的混合物，其提供了本领域所需的良好的流动性和高的早强度。 本发明的混合物包括含有水溶性改性丙烯酸共聚物和选自硫氰酸盐，水溶性链烷醇胺，乙二胺的环氧乙烷加成物和吗啉衍生物的至少一种促进剂的超增塑剂。 本发明中使用的超增塑剂和促进剂的组合令人惊奇地对水泥质组合物的早期抗压强度具有协同效应，并且还提高了水泥组合物的W / CM比和流动性。

公开(公告)号：US5840114A

公开(公告)日：1998-11-24

申请号：US648970

申请日：1996-05-17

Applicant: Ara Avedis Jeknavorian ,  Ahmad Arfaei ,  Neal Steven Berke ,  David Charles Darwin ,  Ellis Martin Gartner ,  Leslie Ann Jardine ,  James Franklin Lambert ,  Lawrence Reeder Roberts

Inventor： Ara Avedis Jeknavorian ,  Ahmad Arfaei ,  Neal Steven Berke ,  David Charles Darwin ,  Ellis Martin Gartner ,  Leslie Ann Jardine ,  James Franklin Lambert ,  Lawrence Reeder Roberts

IPC: C04B24/26 ,  C04B24/32 ,  C04B28/02 ,  C08F8/30 ,  C08F8/32 ,  C08F8/48 ,  C08K3/34 ,  C04B22/08 ,  C04B24/04

CPC classification number: C04B24/2658 ,  C04B28/02 ,  C04B40/0039 ,  C08F8/32 ,  C08F8/48 ,  C08K3/34 ,  C04B2103/001 ,  C04B2201/05

Abstract: A high early strength admixture for precast hydraulic cement comprises a calcium salt and a copolymer having a carbon-containing backbone to which are attached cement-anchoring members, such as carboxyl groups, and to which are also attached oxyalkylene pendant groups by linkages selected from the group consisting of amide and imide members. The copolymers used are preferably formed by reacting an acrylic polymer with ammonia or an alkoxylated amine. The calcium salt, preferably calcium nitrite, and the copolymer can be added simultaneously as one admixture, or separately. The invention relates also to methods for enhancing high early strength in concrete, cement, masonry, and mortar mixtures generally, and to precast concrete particarly, and also pertains to such hydraulic mixtures containing the calcium salt and copolymer.

Abstract translation: 用于预制水硬性水泥的高的早期强度外加剂包括钙盐和具有含碳骨架的共聚物，其中连接有水泥锚固构件，例如羧基，并且还通过选自以下的链中的连接氧基亚烷基侧基 由酰胺和酰亚胺成员组成的组。 所使用的共聚物优选通过丙烯酸类聚合物与氨或烷氧基化胺反应形成。 钙盐，优选亚硝酸钙和共聚物可以作为一种混合物同时加入，或分开加入。 本发明还涉及通常用于提高混凝土，水泥，砌筑和砂浆混合物的高早强的方法，并且具体地预制混凝土，并且还涉及含有钙盐和共聚物的这种水力混合物。

公开(公告)号：WO2009004348A3

公开(公告)日：2009-04-16

申请号：PCT/GB2008002299

申请日：2008-07-02

Applicant: GRACE W R & CO ,  HUGHES DAVID WILLIAM ,  NORRIS ERNIE

Inventor： HUGHES DAVID WILLIAM ,  NORRIS ERNIE

IPC: C04B28/02 ,  C04B24/00 ,  C04B24/22 ,  C04B103/30 ,  C04B103/40

CPC classification number: C04B28/02 ,  C04B40/0039 ,  C04B2103/0083 ,  C04B2201/05 ,  C04B2103/308 ,  C04B2103/408 ,  C04B24/003 ,  C04B24/226 ,  C04B24/223 ,  C04B24/2641 ,  C04B2103/32 ,  C04B24/2647

Abstract: The present invention provides a composition and method involving the use of at least one cement dispersant mixed with a diphosphonic or triphosphonic acid or salt as a slump retention-enhancing agent that is chemically unreacted with the at least one cement dispersant, such that, when introduced into the aqueous environment of a cementitious mixture, slump retention-enhancing agent molecules move independently of cement dispersant molecules with respect to the cement particles.

Abstract translation: 本发明提供一种组合物和方法，其包括使用与二膦酸或三膦酸或盐混合的至少一种水泥分散剂作为与所述至少一种水泥分散剂在化学上未反应的坍落度保留增强剂，使得当引入时 进入水泥混合物的水性环境中，坍落度保留增强剂分子相对于水泥颗粒独立于水泥分散剂分子移动。

公开(公告)号：WO2004005212A3

公开(公告)日：2004-03-25

申请号：PCT/US0319649

申请日：2003-06-20

Applicant: UNITED STATES GYPSUM CO

Inventor： DUBEY ASHISH

IPC: C04B28/04 ,  C04B7/32 ,  C04B14/04 ,  C04B14/10 ,  C04B18/08 ,  C04B22/06 ,  C04B22/08 ,  C04B22/10 ,  C04B22/14 ,  C04B24/06 ,  C04B24/22 ,  C04B28/06

CPC classification number: C04B28/16 ,  C04B2201/05 ,  Y02W30/92 ,  C04B7/02 ,  C04B7/32 ,  C04B18/08 ,  C04B20/0016 ,  C04B22/064 ,  C04B22/085 ,  C04B24/06 ,  C04B24/226 ,  C04B14/12 ,  C04B2103/0088

Abstract: A rapid setting cementitious composition useful for making cement boards employs an insoluble form of anhydrous calcium sulfate (anhydrite) to accelerate setting and to permit reducing the amount of high alumina cement usage. The rapid setting cementitious composition comprises as a reactive powder blend: (a) 35 to 90 wt% potland cement; (b) 0 to 55 wt% pozzolan; (c) 5 to 15 wt% high alumina cement and (d) 1 to 8 wt% insoluble calcium sulfate anhydrite.

Abstract translation: 用于制造水泥板的快速凝固水泥组合物采用不溶形式的无水硫酸钙（无水石膏）来加速凝固并允许减少高铝水泥用量。 快速凝固的水泥组合物包含作为活性粉末的混合物：（a）35-90wt％的瓦特水泥; （b）0-55wt％火山灰; （c）5至15重量％的高铝水泥和（d）1至8重量％的不溶性硫酸钙无水石膏。

公开(公告)号：WO00076936A1

公开(公告)日：2000-12-21

申请号：PCT/US2000/014794

申请日：2000-05-26

IPC: C04B22/12 ,  C04B24/12 ,  C04B24/26 ,  C04B24/32 ,  C04B24/38 ,  C04B28/02 ,  C04B24/24 ,  C04B24/10

CPC classification number: C04B24/2658 ,  C04B24/32 ,  C04B28/02 ,  C04B2103/52 ,  C04B2201/05 ,  C04B22/124 ,  C04B24/06 ,  C04B24/10 ,  C04B2103/006 ,  C04B2103/302

Abstract: A method for improving early strength of cements comprising introducing into a cement, preferably during the grinding thereof, (a) at least one water reducer comprising a polyoxyalkylene polymer; (b) a sugar; and (c) an alkali or alkaline earth metal chloride. In further exemplary embodiments, the polyoxyalkylene polymer preferably comprises a comb polymer having a backbone and pendant groups. Optionally, an amine may be included with the additives. Exemplary additives and cements and cementitious compositions, preferably blended cements, and more most preferably pozzolanic cements, comprising the additives are also disclosed.

Abstract translation: 一种用于改善水泥的早期强度的方法，包括引入水泥，优选在其研磨期间，（a）至少一种包含聚氧化烯聚合物的减水剂; （b）糖; 和（c）碱金属或碱土金属氯化物。 在另外的示例性实施方案中，聚氧化烯聚合物优选包含具有主链和侧基的梳状聚合物。 任选地，胺可以与添加剂一起包含。 还公开了包括添加剂的示例性添加剂和水泥和水泥质组合物，优选掺混的水泥，更优选火山灰水泥。