SLAG2BUILD
Forced air granulation of ladle furnace SLAG to enhance its hydraulic properties and allow its re-use as a replacement of portland cement in the BUILDing sector
Project Structure
The Slag2Build project aims to demonstrate, at industrial scale (TRL 8), the technical and environmental feasibility of a large demonstraton dry granulation technology for the treatment of Ladle Furnace Slag (LFS).
The technology relies on a controlled air-jet collision system to instantly quench liquid slag without using water, thus preventing the generation of dust and alkali fumes typically associated with the Best Available Technique (BAT) currently adopted in the EU iron and steel industry.
Slag2Build’s innovation lies in transforming an unstable by-product into a valuable secondary raw material for hydraulic binders, road stabilisers, and cementitious products, addressing both industrial decarbonisation and resource efficiency goals set by EU policy.
The activities are structured into nine work packages, taking care of proper interactions and complementarities among partners. Specific WPs are devoted to dissemination, exploitation, and business plan activities. One WP is devoted to project management
WP1: Project Management
This WP aims to coordinate the different work packages, whilst regularly organizing meetings between the partners to discuss the content and progress of the project.
WP2: Dry Granulation Scenario definition
Collection of all necessary data for process and plant design, such as: steelmaking process data, tools for slag properties calculation, and standards for slag utilization
WP3: Detailed design of the demonstration granulation plant at STOMANA
The detailed design and engineering for the construction of the large demonstration plant in STOMANA is the topic of this WP.
WP4: Large demonstration granulation plant erection and operation
The demonstration plant in STOMANA will be constructed and long-term production will be accomplished
WP5: Industrialization of the LFS-based SCM and mortars
LFS-based SCMs and mortars, produced by Carmeuse with the granulated LFS provided by STOMANA, will be industrialized
WP6: Pathway towards the certification of LFS-based cements and hydraulic road binders
The suitability of recycling the granulated LFS to produce hydraulic road binders and cement will be assessed
WP7: Replicability analysis and business plan
Our project management experts oversee every aspect of construction to ensure timelines are met and budgets are maintained, providing peace of mind.
WP8 - LCA and LCC evaluations and skills development
The project results with standard and consolidated tools will be analysed, both from the environmental and economical point of view.
WP9 – Dissemination, Exploitation and Communication activities
This WP aims to deliver updates and useful information about the Slag2Build technology
Granulated LFS: A Sustainable Pathway to Circular Construction
The potential for incorporating granulated LFS as a sustainable secondary raw material in the construction industry is significant, enabling resource-efficient manufacturing pathways and supporting the transition toward low‑impact, circular building solutions