Risk Reduction Introducing Synthetic Pozzolan Global Cement Forecast

Risk Reduction Introducing Synthetic Pozzolan

Global Cement Forecast Image reprinted with permission from the Portland Cement Association 2 10/7/2020 Titel

What are SCM? Supplementary Cementitious Materials Image reprinted with permission from the Portland Cement Association Substitution of clinker in cement by another material which has Cementitious properties 3 10/7/2020 Titel

SCMs Categories – Hydraulic – Pozzolonic Classifications – Natural – Synthetic – Waste Material Benefits – – Environmentally friendly sustainable products Lower Fuel Consumption Lower Operating Costs Lower Capital Costs

Typically Used SCM Fly Ash Silica Fume Slag

Clays Based SCMs Crystalline Clay – Organized Structure – Stable / Non-reactive Q (t, T) Amorphous Material – Disordered – Highly Pozzolonic Collapsed Clay Q (t, T) – Partially Crystalline – Stable / Non-reactive 6 10/7/2020 Titel

Calcination / Activation 7 10/7/2020 Titel

Clay Based SCMs 8 10/7/2020 Titel

Clay Based SCMs Final strength Low early strength Color Water demand Emissions (Process) • • • 9 10/7/2020 Titel

Laboratory Study Synthetic Pozzolan With the objective of identifying potential to produce a synthetic pozzolan from a given clay: – – – Sample Preparation Chemical and mineralogical characterization Physical testing Activation utilizing calciner process Color control of product Grinding and physical testing of synthetic pozzolan • Compressive strength testing at three substitution rates (20, 30 and 40%) 10 10/7/2020 Titel

Direct Substitution 11 10/7/2020 Titel

Blend Optimization • Clinker is engineered for Ordinary Portland Cement • Blended Cement can mimic Ordinary Portland Cement • High substitution rates require different parameters • Optimization of physical and chemical properties required Blended Cements ~ Ordinary Portland Cement 12 10/7/2020 Titel

Market Acceptance • Mobile Plant – – Pilot scale Pozzolan Calciner System 5 MTPD capacity Fully integrated / Self-sustainable (Plug-and-Play concept) Simple set-up & operation • Advantage – Hands-on experience – Product produced with available raw materials – Capacity to achieve consumers acceptance • Investment – <1% of Industrial Installation 13 10/7/2020 Titel

The Mobile Plant 14 10/7/2020 Titel

Thank You 15 10/7/2020 Titel