公开(公告)号：US20230110621A1

公开(公告)日：2023-04-13

申请号：US17911438

申请日：2021-03-15

Applicant: BASF SE

Inventor： Xuerun LI ,  Christoph HESSE ,  Bernhard MAYR ,  Julien BIZZOZERO

IPC: C04B28/04 ,  C04B28/16 ,  C04B22/00 ,  C04B7/02 ,  C04B14/28

Abstract: The present invention relates to construction material compositions comprising at most 55% by dry weight of Portland cement with a high early and late compressive strength. The other main components in the cement are SCMs, limestone, sulfate source and accelerator.

公开(公告)号：US20180050962A1

公开(公告)日：2018-02-22

申请号：US15560552

申请日：2016-04-20

Applicant: BASF SE

Inventor： Manfred BICHLER ,  Martin WINKLBAUER ,  Torben GAEDT ,  Joachim DENGLER ,  Christoph HESSE ,  Bernhard MAYR

IPC: C04B28/02 ,  C04B40/00 ,  C04B22/00 ,  C04B22/06 ,  C04B24/24 ,  C04B24/26 ,  C04B14/04

CPC classification number: C04B28/02 ,  C04B14/043 ,  C04B22/0086 ,  C04B22/064 ,  C04B24/246 ,  C04B24/2605 ,  C04B24/267 ,  C04B40/0042 ,  C04B2103/14 ,  C04B2103/001

Abstract: The invention relates to a method for producing a calcium silicate hydrate-comprising hardening accelerator in powder form, which comprises the steps of (a) providing an aqueous suspension comprising calcium silicate hydrate; (b) mixing at least one calcium compound, selected from calcium acetate, calcium formate, calcium hydroxide, calcium oxide, and mixtures of two or more of said compounds, with the aqueous suspension comprising calcium silicate hydrate; and (c) drying the resulting mixture. The invention also relates to the hardening accelerator obtainable by this method, to the use thereof, and to building material mixtures which comprise the hardening accelerator.