US 2018/0170805 A1

Steel product, cement manufacturing
process and cement

(22) 20.12.2017

(43) 21.06.2018

(57) The present invention relates to a novel cementitious product produced from steelworks slag additivation to obtain material having properties suitable for use in the partial or total clinker replacement for the production of different types of cement. The process, which is also object of this invention, aims to adapt the properties of steelworks slag, by means of thermochemical treatment, including and preferably, but not only, still in the liquid steelworks slag pot, taking advantage of the thermal input of steel processing, to form a greater amount of alite (essential compound to increase pozzolanicity), under controlled conditions. After additivation, preferably, but not exclusively, the additivated steelworks slag is subjected to quenching, comminution and concentration to stabilize the alite fraction, to release the present phases and to remove any excess contaminants, such as metallic iron.

(71) Gerdau S.A., Rio de Janeiro (BR)

Issue 12/2019 NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS

Investigations into the mechanical properties of Portland slag cement based on GBFS and steel slag

1 Introduction Formulations of blended cements based on natural or synthetic inorganic minerals are associated with the conservation of resources, energy and cement along with lowering the clinker...

Issue 02/2024 US 2024/0018046 A1

Early strength slag-based cementitious binder

(22) 01.10.2021 (43) 18.01.2024 (57) The present invention provides exemplary method and additive for making cementitious binders that comprise primarily ground granulated blast furnace slag (GGBFS)...

Issue 06/2010

Use of steel slags in the cement industry

Reply to Yüksel, I., Özkan, Ö.: Physical and mechanical properties of composite cements. ZKG INTERNATIONAL 12/2009, pp. 54.

The article by Yüksel and Özkan postulates rates of replacement of clinker with granulated blast furnace slag (GBFS) and steel slag (specifically: LD slag) of 60 to 80??%. The authors...

Issue 9/2020 WO 2020/089048 A1

Admixture for a cementitious material to influence the rheology properties of the cementitious material

(22) 25.10.2019 (43) 07.05.2020 (57) The invention relates to an admixture for a cementitious material suitable to influence the rheological properties of the cementitious material. The admixture...

Issue 6/2023 FEHS BUILDING MATERIALS INSTITUTE

The steel production transformation process in Europe: New slag types will substitute granulated blast furnace slag

1 Background The Green deal strategy of the European Commission from 2019 aims to reduce the net CO2 emissions to zero by 2050. In order to reach this task breakthrough technologies have to be...

ZKG 10/2018