US 2016/0016850 A1

Process for the preparation of cement, mortars, concrete ­compositions containing a calcium carbonate – based ­filler ­(pre)-treated with a superplasticizer, compositions and ­cement products obtained and their applications

(22) 22.07.2015

(43) 21.01.2016

(57) The invention concerns a process for the preparation of cement/mortar/concrete (for simplicity: “cement”) composi­tions or systems, (hereafter “cement” compositions or sys­tems for simplicity), of a general known type, in which the filler(s) is/are comprising or consist of “calcium carbonate-based filler(s)”, comprising at least one step where the said filler(s) is/are treated with an efficient treating amount of at least one treating agent consisting of or comprising super­plastifier(s). The main purpose of this invention is to build a process aimed at providing improved., “High performance”, fluid, cement or mortars or concrete systems or composi­tions having an improved compacity, an improved flowabil­ity, and globally speaking a definitely improved “workabil­ity”, and “regularity” of the properties of the final systems. The present invention also concerns a filler for “cement” compositions, characterized in that if consists of, or com­prises, a calcium-carbonate-based filler or blends of same, pre-treated with an “efficient amount” of at least one super­plastifier.

(71) Omya International AG, Oftringen (CH)

(73) Omya International AG, Oftringen (CH)

x

Related articles:

Issue 2016-6 US 2016/0115078 A1

Process for the preparation of cement, mortars, concrete ­compositions containing calcium carbonate-based filler(s) ­(pre)-treated with ultrafine (UF) filler(s), compositions and ­cement products obtained and their applications

(22) 17.11.2015 (43) 28.04.2016 (57) Process for the preparation of “High performance”, “HP”, or “­Fluid”, or “technical”, cement or mortars or concrete systems or compositions (hereafter for...

more
Issue 2018-6 WO 2018/077772 A1

Additive for construction chemical compositions

(22) 23.10.2017 (43) 03.05.2018 (57) The present invention concerns an additive for construction chemical compositions, in particular mortar and cement compositions. The additive comprises at least...

more
Issue 2021-8 WO 2021/180594 A1

Slag-based hydraulic binder, dry mortar composition comprising same and system for activating a slag-based binder

(22) 05.03.2021 (43) 16.09.2021 (57) The aim of the invention is to provide a hydraulic binder based on ground granulated blast-furnace slag, devoid of Portland cement, which enables improved setting...

more
Issue 2018-12 WO2018185072 (A1)

Use of fine calcium carbonate in an inorganic mortar system based on aluminous cement to increase load values

(22) 03.04.2018 (43) 11.10.2018 (57) The present invention pertains to a use of calcium carbonate having an average particle size in the range of from 0.5 to 3 ?m, preferably of from 1 to 3 ?m, in an...

more
Issue 2016-9 WO 2016/115398 A1

Controlled process for precipitating calcium carbonate and vaterite precipitated calcium carbonate compositions formed by said process

(22) 14.01.2016 (43) 21.07.2016 (57) A process for converting gypsum into precipitated calcium carbonate including reacting a mixture comprising gypsum and a seed, a mineral acid, or both with at...

more