公开(公告)号：US20120145044A1

公开(公告)日：2012-06-14

申请号：US12963179

申请日：2010-12-08

Applicant: Peter Shelley Mills ,  Thomas L. Robl ,  Robert F. Rathbone ,  Robert Benjamin Jewell

Inventor： Peter Shelley Mills ,  Thomas L. Robl ,  Robert F. Rathbone ,  Robert Benjamin Jewell

IPC: C04B28/06 ,  B05D1/02

CPC classification number: C04B28/065 ,  C04B7/323 ,  C04B11/30 ,  C04B28/14 ,  C04B2111/00155 ,  C04B2111/00577 ,  C04B2111/00724 ,  C04B2111/72 ,  C04B2201/05 ,  C04B14/06 ,  C04B22/10 ,  C04B22/143 ,  C04B40/065 ,  C04B2103/0008 ,  C04B22/12

Abstract: The invention provides a cementitious composition comprising a cement component comprising (i) an accelerant, (ii) a calcium sulphate source and (iii) an ettringite forming cement; an aggregate; and optionally water; wherein the cement has a minimum unconfined compressive strength of 1500 psi when tested in accordance with ASTM C1140 and/or C1604 at 15 minutes after placement; methods for its use and concrete formed from it.

Abstract translation: 本发明提供一种包含水泥组分的水泥组合物，其包含（i）促进剂，（ii）硫酸钙源和（iii）形成钙矾石的水泥; 总数 和任选的水; 其中当在放置后15分钟根据ASTM C1140和/或C1604进行测试时，水泥具有1500psi的最小无侧限抗压强度; 其使用方法及其形成的混凝土。

公开(公告)号：US06641661B1

公开(公告)日：2003-11-04

申请号：US09979773

申请日：2002-01-30

Applicant: Leslie A. Jardine ,  Josephine H. Cheung ,  Walter M. Freitas

Inventor： Leslie A. Jardine ,  Josephine H. Cheung ,  Walter M. Freitas

IPC: C04B2402

CPC classification number: C04B28/02 ,  C04B24/2658 ,  C04B2103/52 ,  C04B2201/05 ,  C04B22/124 ,  C04B24/10 ,  C04B24/121 ,  C04B40/0039 ,  C04B2103/302

Abstract: A method for improving early strength of cements, comprising introducing into a cement during the grinding thereof (a) at least one water reducer comprising a polyoxyalkylene polymer; (b) a sugar; (c) an alkali or alkaline earth metal chloride; and (d) an amine. Additives and cement compositions are also disclosed.

Abstract translation: 一种用于改善水泥的早期强度的方法，包括在其研磨期间引入水泥（a）至少一种包含聚氧化烯聚合物的减水剂; （b）糖; （c）碱金属或碱土金属氯化物; 和（d）胺。 还公开了添加剂和水泥组合物。

公开(公告)号：US6048393A

公开(公告)日：2000-04-11

申请号：US85379

申请日：1998-05-26

Applicant: Josephine Ho-wah Cheung ,  David Francis Myers

Inventor： Josephine Ho-wah Cheung ,  David Francis Myers

IPC: C04B24/12 ,  C04B28/04

CPC classification number: C04B40/0039 ,  C04B24/122 ,  C04B28/04 ,  C04B2201/05

Abstract: This invention relates to enhancing the compressive strength of cements after 1, 3, 7 and 28 days following hydration and to improving porosity and finished surfaces of the hardened cements and concretes made therefrom. The improved cements are prepared using certain hydroxylamine additives in amounts of up to 0.1% which preferably are added during grinding of the cement in which case the amines further act as grinding aids.

Abstract translation: 本发明涉及提高水合后1,3,7和28天之后水泥的抗压强度，以及改善由其制成的硬化水泥和混凝土的孔隙率和最终表面。 使用某些羟胺添加剂的量可高达0.1％，优选在水泥研磨过程中加入改进的水泥，在这种情况下胺还可作为助磨剂。

公开(公告)号：US4402749A

公开(公告)日：1983-09-06

申请号：US65618

申请日：1979-08-10

Applicant: Wm. Cornelius Hall ,  J. Merriam Peterson

Inventor： Wm. Cornelius Hall ,  J. Merriam Peterson

IPC: C04B28/26 ,  C04B7/35

CPC classification number: C04B28/26 ,  C04B2111/0075 ,  C04B2111/72 ,  C04B2201/05

Abstract: A composition is supplied for filling pot holes and other types of structural deterioration. The composition consist of hydraulic cement and an alkali metal silicate. The silicate includes a molar ratio of silican dioxide to alkali metal oxide from 0.4 to 4.0. The silicate is in a concentration ranging from 0.2 to 20 percent by weight of the cement. A method is also provided which comprises repairing a deteriorating structure by inserting therein a cementitious composition and controlling the rate of setting of the composition by the inclusion therein of sodium silicate in the molar ratio of silicon dioxide to sodium oxide of from 0.4 to 4.0.

Abstract translation: 提供组合物用于填充罐孔和其它类型的结构劣化。 组合物由水硬性水泥和碱金属硅酸盐组成。 硅酸盐包括硅橡胶与碱金属氧化物的摩尔比为0.4〜4.0。 硅酸盐的浓度范围为水泥重量的0.2％至20％。 还提供了一种方法，其包括通过在其中插入水泥组合物来修复劣化结构，并通过将二氧化硅与氧化钠的摩尔比为0.4至4.0，通过包含硅酸钠来控制组合物的凝固速率。

公开(公告)号：US20190002349A1

公开(公告)日：2019-01-03

申请号：US16019739

申请日：2018-06-27

Applicant: GCP Applied Technologies Inc.

Inventor： Ezgi YORDAKUL ,  Damla BOYER ,  Klaus-Alexander RIEDER ,  Yohannes K. LEMMA

IPC: C04B28/28 ,  C04B28/24 ,  C04B24/42 ,  C04B40/00 ,  C04B40/02

CPC classification number: C04B28/28 ,  C04B24/42 ,  C04B28/02 ,  C04B28/24 ,  C04B40/0032 ,  C04B40/0039 ,  C04B40/029 ,  C04B2103/0051 ,  C04B2103/24 ,  C04B2103/408 ,  C04B2111/00155 ,  C04B2201/05 ,  C04B14/042 ,  C04B14/045 ,  C04B14/062 ,  C04B14/066 ,  C04B14/10 ,  C04B18/146 ,  C04B20/008 ,  C04B22/06 ,  C04B22/064 ,  C04B22/066 ,  C04B22/143 ,  C04B24/02 ,  C04B24/06 ,  C04B24/12 ,  C04B24/16 ,  C04B24/18 ,  C04B24/20 ,  C04B24/2647 ,  C04B24/38 ,  C04B24/383 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/302 ,  C04B2103/44 ,  C04B2103/54 ,  C04B2103/58 ,  C04B2103/61 ,  C04B2103/65 ,  C04B2103/67 ,  C04B7/02

Abstract: The present invention provides an admixture composition comprising a liquid suspension of colloidal silica, siloxane, and polycarboxylate polymer cement dispersant for enhancing early age strength, finishability, and other properties in hydratable cementitious compositions such as concrete (e.g., shotcrete). An inventive method involves mixing the components together in a specific sequence, thereby to obtain a stable liquid suspension. This attainment of a stable liquid suspension is surprising and unexpected because (i) the polycarboxylate polymer cement dispersant and siloxane components are incompatible and immiscible with one another; and (ii) that colloidal silica and siloxane compound are incompatible and immiscible with one another. Yet, the present inventors achieved an additive in the form of a stable liquid suspension which can be conveniently dosed into concretes and shotcrete mixtures, to enhance early age strength, and to improve workability and rheology in terms of finishability of concrete surfaces and improved rebound performance in shotcrete applications.

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。