公开(公告)号：WO2023285386A1

公开(公告)日：2023-01-19

申请号：PCT/EP2022/069329

申请日：2022-07-11

Applicant: MAPEI S.P.A.

Inventor： FERRARI, Giorgio ,  CASTIGLIONI, Fabio ,  CORBO, Piero ,  SQUINZI, Marco

IPC: C04B28/02 ,  C04B28/04 ,  C04B28/06 ,  C04B28/08 ,  C04B40/00 ,  C04B103/10

Abstract: The invention relates to a new concrete admixture based on metal silicate hydrates and ettringite for improving the strength development at both early and longer ages of low-carbon cementitious compositions based on Portland cement and supplementary cementitious materials SCMs, including fly ash, slag, natural pozzolans, silica fume, calcined clays and fillers, such as limestone powder.

公开(公告)号：WO2019180191A1

公开(公告)日：2019-09-26

申请号：PCT/EP2019/057201

申请日：2019-03-22

Applicant: SIKA TECHNOLOGY AG

Inventor： JUILLAND, Patrick ,  GALLUCCI, Emmanuel ,  SCHÖNENBERGER, Denise ,  PEGADO, Luis ,  FRUNZ, Lukas ,  EBERHARDT, Arnd

IPC: C04B28/02 ,  C04B40/00 ,  C01F11/02 ,  C04B103/10

Abstract: Die Erfindung betrifft eine wässrige Suspension umfassend 5 bis 65 Gewichts-% Calciumhydroxid, wobei mindestens 50 Gewichts-% des Calciumhydroxids in Form von Nanopartikeln vorliegen, und mindestens eine Verbindung zur Stabilisierung der Suspension. Die wässrige Suspension beschleunigt das Abbinden mineralischer Bindemittelzusammensetzungen ohne die Verarbeitungseigenschaften der Zusammensetzung negativ zu beeinflussen.

公开(公告)号：WO2020144064A1

公开(公告)日：2020-07-16

申请号：PCT/EP2019/086919

申请日：2019-12-23

Applicant: SIKA TECHNOLOGY AG

Inventor： LUCERO, Andrea ,  CADER, Mohamed ,  ALVES DOS SANTOS, Flaviane

IPC: C04B28/06 ,  C04B28/14 ,  C04B40/06 ,  C04B103/10 ,  C04B111/70 ,  C04B111/72 ,  C04B111/76

Abstract: The invention relates to cementitious compositions with accelerated curing at low temperatures particularly at temperatures

公开(公告)号：WO2019170657A1

公开(公告)日：2019-09-12

申请号：PCT/EP2019/055418

申请日：2019-03-05

Applicant: YARA INTERNATIONAL ASA

Inventor： FRANKE, Wolfram ,  THOMMESEN, Hilde

IPC: C04B40/00 ,  C04B28/02 ,  C04B103/10

Abstract: The present application relates to a setting and hardening accelerator for a cement, mortar or concrete composition, optionally comprising cement replacement materials (CSMs). The accelerator composition comprises an aqueous nitrate solution and an alkaline hydroxide. Particularly, the aqueous accelerator composition comprises between 30 and 55 w/w % of a nitrate salt as a nitrate solution and between 0.02 and 0.1 w/w% of an alkaline hydroxide, which is dissolved in the nitrate solution and, optionally, as a hydroxide precipitate in the accelerator composition, wherein the accelerator composition has a pH of at least 9.0. In case the cement, mortar or concrete composition comprises CSMs, the accelerator composition has a pH of at least 12.0. The application furthermore relates to the use of the accelerator composition according to the present application and to a method for accelerating a cement, mortar or concrete composition by reacting the composition with the accelerator according to the application, in particular at cold temperatures.

公开(公告)号：WO2014151388A1

公开(公告)日：2014-09-25

申请号：PCT/US2014/025631

申请日：2014-03-13

Applicant: HERCULES INCORPORATED

Inventor： HOHN, Wilfried, Adolf ,  HUCKO, Stefan ,  KINDLER, Alexander, Adolphe ,  NILLES, Vera, Louise ,  WUNDERLICH, Martin

IPC: C04B28/02 ,  C04B103/10 ,  C04B103/20

CPC classification number: C04B16/02 ,  C04B24/16 ,  C04B28/02 ,  C04B2111/00672 ,  C04B40/0608 ,  C04B2103/10 ,  C04B2103/20 ,  C04B12/04 ,  C04B14/303 ,  C04B22/0013 ,  C04B22/08 ,  C04B22/085 ,  C04B22/10 ,  C04B22/124 ,  C04B22/14 ,  C04B22/16 ,  C04B22/165 ,  C04B24/04 ,  C04B24/06 ,  C04B24/383

Abstract: The presently disclosed and claimed inventive concept(s) relates generally to a hydraulic composition with a prolonged open time. More particularly, the composition comprises at least one cement retarder and at least one accelerator. The presently disclosed and claimed inventive concept(s) further relates to a dry mortar composition comprising the hydraulic composition having prolonged open time without deterioration of the other cement tile adhesive properties such as workability, setting time, strength development and sag resistance.

Abstract translation: 目前公开和要求保护的发明构思一般涉及具有延长的开放时间的水力组合物。 更具体地，组合物包含至少一种水泥缓凝剂和至少一种促进剂。 目前公开和要求保护的发明构思进一步涉及包含水硬性组合物的干砂浆组合物，其具有延长的开放时间，而不会降低其它水泥瓦粘合剂性质如可加工性，凝固时间，强度显影和抗流挂性。

公开(公告)号：WO2023060296A1

公开(公告)日：2023-04-20

申请号：PCT/AU2022/051201

申请日：2022-10-07

Applicant: ADELAIDE BRIGHTON CEMENT LIMITED

Inventor： BAGHERI, Ali ,  FARAH, David

IPC: C04B103/10 ,  C04B22/00 ,  C04B28/08 ,  C04B7/17

Abstract: The invention is a binder which is an alternative to traditional cementitious binders. An example of the binder uses ground granulated blast furnace slag, hydrated lime and cement kiln dust.

公开(公告)号：WO2019005556A1

公开(公告)日：2019-01-03

申请号：PCT/US2018/038495

申请日：2018-06-20

Applicant: BAKER HUGHES, A GE COMPANY, LLC

Inventor： DIGHE, Shailesh Shashank ,  GUPTA, D.V. Satyanarayana ,  BRANNON, Harold D. ,  KELLUM, Matthew

IPC: E21B33/13 ,  C04B28/02 ,  C04B22/12 ,  C04B103/10 ,  C04B111/00

Abstract: A method of cementing a wellbore comprises injecting into the wellbore a cement slurry comprising an encapsulated accelerant comprising an accelerant encapsulated within an encapsulation material; a cementitious material; and an aqueous carrier; and releasing the accelerant from the encapsulation material.

公开(公告)号：WO2008130107A1

公开(公告)日：2008-10-30

申请号：PCT/KR2008/001800

申请日：2008-03-31

Applicant: PARK, Min-Hwa

Inventor： PARK, Min-Hwa

IPC: C04B38/02 ,  C04B103/10 ,  C04B111/40 ,  C04B111/52 ,  C04B14/38

CPC classification number: C04B38/106 ,  C04B2111/52 ,  Y02W30/94 ,  Y02W30/97 ,  C04B14/04 ,  C04B14/043 ,  C04B14/047 ,  C04B14/06 ,  C04B14/064 ,  C04B14/102 ,  C04B14/106 ,  C04B14/18 ,  C04B14/202 ,  C04B14/26 ,  C04B14/303 ,  C04B14/304 ,  C04B14/308 ,  C04B14/386 ,  C04B14/42 ,  C04B14/46 ,  C04B14/48 ,  C04B18/141 ,  C04B18/146 ,  C04B18/24 ,  C04B22/0013 ,  C04B24/26 ,  C04B28/02 ,  C04B40/0263 ,  C04B2103/12

Abstract: The present invention provides a rapid set cement foam as replacement for a foaming resin, which is a petrochemical product in the art, and the method for preparing the same. The rapid set cement foam is prepared by mixing: an aqueous solution composed of water and a foaming agent; cement mixed with the aqueous foam solution to be foamed; silica; ceramic powder; and an accelerating agent mixed with the foam cement. The method for preparing a rapid cement foam includes; a step for foaming an aqueous foam solution obtained by dissolving a foaming agent in water; a step for forming a cement slurry by mixing a foam and cement; a step for adding an accelerating agent to the cement slurry; and a step for forming a rapid set cement foam by casting the cement slurry mixed with additives into a mold or over walls of a building.

Abstract translation: 本发明提供了一种快速凝固水泥泡沫作为替代现有技术中的石化产品的发泡树脂及其制备方法。 快速凝固水泥泡沫通过混合：由水和发泡剂组成的水溶液; 水泥与要发泡的泡沫水溶液混合; 二氧化硅; 陶瓷粉 和与泡沫胶粘剂混合的促进剂。 制备快速水泥泡沫的方法包括： 使通过将发泡剂溶解在水中得到的泡沫水溶液发泡的工序; 通过混合泡沫和水泥形成水泥浆料的步骤; 向该水泥浆中添加促进剂的工序; 以及通过将与添加剂混合的水泥浆浇铸到模具中或在建筑物的墙壁上形成快速凝固水泥泡沫的步骤。

公开(公告)号：WO2007045923A3

公开(公告)日：2007-08-02

申请号：PCT/GB2006050332

申请日：2006-10-17

Applicant: BPB PLC ,  O'KEEFE SAM ,  SAHAY PARNIKA

Inventor： O'KEEFE SAM ,  SAHAY PARNIKA

IPC: C04B28/14 ,  B01F11/02 ,  C04B40/00 ,  C04B103/10

CPC classification number: C04B28/14 ,  B01F11/0258 ,  C04B40/0021 ,  C04B2111/0062 ,  C04B22/147 ,  C04B40/0028 ,  C04B40/0227 ,  C04B2103/10

Abstract: A method of accelerating the setting reaction of calcium sulphate hemihydrafce and water comprises the steps of mixing water and calcium sulphate hemihydrate to produce a slurry adding an accelerator to said mixture applying ultrasonic energy to said mixture. Application of ultrasound to the plaster slurry accelerates crystallization and thus reduces the setting time. A further benefit is reduced density of the wall boards.

Abstract translation: 加速硫酸钙半水合物和水的凝固反应的方法包括将水和硫酸钙半水合物混合以产生向所述混合物中加入促进剂的浆料，向所述混合物中施加超声波能量。 将超声波应用于石膏浆加速结晶，从而减少凝固时间。 另一个好处是减少墙板的密度。

公开(公告)号：WO99018045A1

公开(公告)日：1999-04-15

申请号：PCT/FR1998/002122

申请日：1998-10-05

IPC: C01B33/141 ,  C01B33/26 ,  C01F7/02 ,  C01F7/74 ,  C04B22/00 ,  C04B22/14 ,  C04B28/02 ,  C04B40/00 ,  C04B103/10

CPC classification number: C04B22/00 ,  C04B22/148 ,  C04B40/0039 ,  C04B2103/12 ,  C04B2111/00155 ,  C04B14/062 ,  C04B28/02 ,  C04B14/04 ,  C04B14/303

Abstract: The invention concerns an aqueous suspension comprising: A) silica and/or alumina particles; and B) a compound of global formula (I): Al(OH)a(SO4)b(SiOx)c(Y)d with: a ranging between 0.4 and 2; b ranging between 0.3 and 1.35; c ranging between 0 and 0.1; d being more than 0.05; Y selected among the alkaline and alkaline-earth metals; x ranging between 2 and 4, and its derivatives. Said compound (B) being present in the suspension at a concentration of at least 1.65 mol/l expressed in aluminium mol derived from said compound. It also concerns a method useful for preparing said suspension and their uses in the field of cement pastes, mortars and concrete and particularly as setting and hardening accelerator of cements.

Abstract translation: 本发明涉及一种水性悬浮液，其包含：A）二氧化硅和/或氧化铝颗粒; 和B）全部式（I）的化合物：Al（OH）a（SO 4）b（SiO x）c（Y）d，其范围在0.4和2之间; b在0.3和1.35之间; c在0和0.1之间; d大于0.05; Y选自碱金属和碱土金属; x在2和4之间，其衍生物。 所述化合物（B）以至少1.65mol / l的浓度存在于悬浮液中，以来自所述化合物的铝mol表示。 它还涉及一种可用于制备所述悬浮液及其在水泥浆，砂浆和混凝土领域中的用途的方法，特别是作为水泥固化和硬化促进剂。