公开(公告)号：US20170121227A1

公开(公告)日：2017-05-04

申请号：US15320115

申请日：2015-06-18

Applicant: LAFARGE

Inventor： Fabien PEREZ ,  Fabrice TOUSSAINT ,  Laurent FERREIRA

IPC: C04B28/14 ,  C04B14/04 ,  C04B14/28 ,  C04B16/06 ,  C04B14/48 ,  C04B14/42 ,  C04B14/46 ,  C04B28/04 ,  C04B14/06

CPC classification number: C04B28/14 ,  C04B7/527 ,  C04B14/04 ,  C04B14/06 ,  C04B14/28 ,  C04B14/42 ,  C04B14/4668 ,  C04B14/48 ,  C04B16/0641 ,  C04B28/04 ,  C04B2103/0027 ,  C04B2201/52 ,  Y02W30/94 ,  C04B14/062 ,  C04B18/146 ,  C04B20/0048 ,  C04B20/008 ,  C04B2103/50

Abstract: A hydraulic binder includes in mass percent from 20 to 82% of a Portland cement the particles of which have a D50 comprised from 2 μm to 11 μm; from 15 to 56% of a non-pozzolanic mineral addition A1, the particles of which have a D50 from 1 to 150 μm and selected from among limestone additions, siliceous additions, siliceous limestone mineral additions, calcined shales, zeolites, burnt plant ashes, and mixtures thereof; from 4 to 30% of pozzolanic mineral addition A2, the particles of which have a D50 from 1 to 150 μm; a sum of the percentages of the Portland cement, the non-pozzolanic mineral addition A1 and the pozzolanic mineral addition A2 being comprised from 90 to 100%.

公开(公告)号：US20170152183A1

公开(公告)日：2017-06-01

申请号：US15320157

申请日：2015-06-18

Applicant: LAFARGE

Inventor： Fabrice TOUSSAINT ,  Gérard MOLINES ,  Rémi BARBARULO

IPC: C04B28/14 ,  C04B7/52 ,  C04B14/06 ,  C04B14/28 ,  C04B28/04 ,  C04B18/14

CPC classification number: C04B28/14 ,  C04B7/527 ,  C04B14/06 ,  C04B14/28 ,  C04B18/146 ,  C04B28/04 ,  C04B2103/50 ,  C04B2201/52 ,  Y02W30/94 ,  C04B14/062 ,  C04B14/30 ,  C04B20/008

Abstract: A hydraulic binder includes, as percentage by mass: from 17 to 55% of a Portland cement, the particles of which have a D50 of from 2μm to 11 μm; at least 5% of silica fume; from 36 to 70% of a mineral addition A1, the particles of which have a D50 of from 15 to 150 μm; the sum of these percentages being from 80 to 100%; the sum of the percentages of cement and of silica fume being greater than 28%; the mineral addition A1 being selected from slags, pozzolanic additions or siliceous additions such as quartz, silico-calcareous mineral additions, calcareous additions such as calcium carbonate or mixtures thereof.

公开(公告)号：US20150336290A1

公开(公告)日：2015-11-26

申请号：US14389263

申请日：2013-03-29

Applicant: LAFARGE

Inventor： Cedric ROY ,  Helene LOMBOIS-BURGER ,  Christian BLACHIER ,  Cedric JUGE ,  Fabrice TOUSSAINT

IPC: B28C7/02 ,  B28C5/00

CPC classification number: B28C7/02 ,  B28C5/006 ,  G01N11/14 ,  G01N33/383 ,  G01N2011/0046

Abstract: A method for controlling at least one workability parameter of a concrete contained in the container of a mixer with a non vertical rotational axis, includes making the container turn at at least two different rotational speeds; determining, for each of the rotational speeds, a rotary drive torque C of the container, a value of shear stress τ of the concrete and a speed gradient value {dot over (γ)} of the concrete according to the following relationships: τ=T(ω)·C {dot over (γ)}=G(ω)·ω where T and G are predetermined functions; determining a relationship of variation of the shear stress τ according to the speed gradient {dot over (γ)} by extrapolation and/or approximation based on the determined values; and providing an indication of the workability parameter of the concrete based on the relationship of variation.

Abstract translation: 一种用于控制包含在具有非垂直旋转轴的混合器的容器中的混凝土的至少一个可加工性参数的方法，包括使所述容器以至少两个不同的转速进行转动; 根据以下关系式，确定混合物的旋转驱动转矩C，混凝土的剪切应力τ和混凝土的速度梯度值（点（y）}），τ= T（ω）·C {dot over（γ）} = G（ω）·ω其中T和G是预定函数; 基于确定的值，通过外推和/或近似，根据速度梯度{dot over（γ）}确定剪切应力τ的变化关系; 并根据变化的关系提供混凝土的可使用性参数的指示。