Process for the preparation of cement, motars, concrete compositions containing a calcium carbonate-based filler (pre)-treated with a superplasticizer, compositions and cement products obtained and their applications
(11) EP 2 423 265 A1
(22) 24.08.2010(43) 29.02.2012
(71) Omya Development AG, 4665 Oftringen (CH)
(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...
