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) having excellent strength at 24 hours, with preferably little or minimal amounts of Ordinary Portland Cement (OPC). As OPC manufacture involves carbon dioxide release into the atmosphere, the use of a GGBFS-based binder composition will help to enhance sustainability practices in the construction industry and minimizing strength losses implied by deletion of OPC. Strength in the GGBFS binder composition is enhanced by an alkaline-earth activator in combination with a strength enhancing component comprising dispersant and secondary activator.

(71) GCP Applied Technologies Inc., Wilmington, MA (US)

Issue 05/2024 GB 2624647 A

A concrete composition comprising Portland cement, ground granulated blast furnace slag (GGBFS), and an aqueous suspension of silica particles

(22) 23.11.2022 (43) 29.05.2024 (57) A concrete composition comprising Portland cement (1-15 wt%), ground granulated blast furnace slag powder (GGBFS, GGBS, 1-25 wt%), an aqueous suspension of silica...

Issue 02/2024 US 2024/0034680 A1

Hydraulic binder with low carbon footprint and high early strength

(22) 08.12.2021 (43) 01.02.2024 (57) The present invention concerns a novel hydraulic binder with a low CO2 footprint, having a low milled cement clinker content, and exhibiting a higher early...

Issue 04/2024 CN117776560 A

Method for testing dosage of phosphorus slag powder replacing cement in inorganic binder

(22) 21.11.2023 (43) 29.03.2024 (57) The invention discloses a method for testing the amount of phosphorus slag powder replacing cement in an inorganic binder. Characterized in that; the mechanical...

Issue 08/2024

Effect of calcium carbide slag on the durability of alkali-activated ground granulated blast furnace slag-fly ash cementitious system

1 Introduction Portland cement is the most widely used building material, and Chinese cement output has reached 2.02 billion t in 2023. The production process of 1 t of cement generates about 810 kg...

Issue 11/2015 HOLCIM

About the sulfate resistance of slag composites

1 Background When sulfates in dissolved form, such as sodium, potassium, magnesium or calcium sulfates from soil or groundwater, enter hardened concrete, they react with the hydrated cement paste....

ZKG 02/2024