公开(公告)号：WO2012175660A1

公开(公告)日：2012-12-27

申请号：PCT/EP2012/062069

申请日：2012-06-22

Applicant: LAFARGE ,  TESTUD, Michel ,  PARDAL, Xiaolin ,  BARBARULO, Rémi

Inventor： TESTUD, Michel ,  PARDAL, Xiaolin ,  BARBARULO, Rémi

IPC: C04B28/02

CPC classification number: C04B28/02 ,  C04B2103/12 ,  C04B2201/05 ,  C04B22/085 ,  C04B22/124 ,  C04B22/147 ,  C04B40/024

Abstract: The present invention relates to a process to improve the mechanical strength 28 days after mixing of a hydraulic composition submitted to a thermal treatment, the hydraulic composition comprising a hydraulic binder and optionally a mineral addition, wherein the process comprises the addition of a calcium salt and an optimized quantity of sulphate to the hydraulic composition.

Abstract translation: 本发明涉及一种改进在经过热处理的水硬性组合物混合后28天的机械强度的方法，水硬性组合物包含水硬性粘合剂和任选的矿物添加剂，其中该方法包括加入钙盐和 向水硬性组合物中优化硫酸盐。

公开(公告)号：WO2012076880A1

公开(公告)日：2012-06-14

申请号：PCT/GB2011/052417

申请日：2011-12-07

Applicant: MINOVA INTERNATIONAL LIMITED ,  MILLS, Peter Shelley ,  ROBL, Thomas L ,  RATHBONE, Robert F ,  JEWELL, Robert Benjamin

Inventor： MILLS, Peter Shelley ,  ROBL, Thomas L ,  RATHBONE, Robert F ,  JEWELL, Robert Benjamin

IPC: C04B28/06 ,  C04B28/14

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：WO2009004348A2

公开(公告)日：2009-01-08

申请号：PCT/GB2008/002299

申请日：2008-07-02

Applicant: W.R. GRACE & CO. - CONN ,  HUGHES, David, William ,  NORRIS, Ernie

Inventor： HUGHES, David, William ,  NORRIS, Ernie

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，其包括使用至少一种与二膦酸或三膦酸或盐混合的水泥分散剂作为坍落度滞留增强剂，其与所述至少一种 水泥分散剂，使得当引入水泥混合物的水性环境中时，坍落度保持增强剂分子相对于水泥颗粒独立于水泥分散剂分子而移动。

公开(公告)号：WO2002094735A1

公开(公告)日：2002-11-28

申请号：PCT/NL2002/000325

申请日：2002-05-23

Applicant: DSM N.V. ,  KOUWENHOVEN, Hendrikus, Antonius, Petrus

Inventor： KOUWENHOVEN, Hendrikus, Antonius, Petrus

IPC: C04B28/02

CPC classification number: C04B14/16 ,  C04B20/008 ,  C04B28/02 ,  C04B2201/05 ,  C04B14/28

Abstract: The invention relates to a method for the manufacture of concrete with a high early strength, to concrete with a high early strength and to application of concrete with a high early strength. The method is characterized in that for the manufacture of the concrete, which involves the mixing of a bonding agent, gravel, a composition of aggregates and water, not one aggregate, but two different aggregates are used. More preferably, the two aggregates are limestone flour and pumice stone, with between 30 and 50 weight percent of the total weight of pumice stone and limestone flour being made up of pumice stone and 50 to 70 weight percent of limestone flour.

Abstract translation: 本发明涉及一种制造具有较高早强度的混凝土，早期强度高的混凝土和早期强度高的混凝土的应用方法。 该方法的特征在于，对于混凝土的制造，其包括粘结剂，砾石，聚集体和水的组合物，而不是一种骨料，但是使用两种不同的聚集体。 更优选地，两个骨料是石灰石粉和浮石，浮石和石灰石粉的总重量的30-50重量％由浮石和50-70重量％的石灰石粉组成。