The major by-product is Supplementary Cementitious Material (SCM) which has a similar chemistry to Portland Cement and is used a cement replacement in concrete manufacture.
SCM’s are added to concrete mixtures to improve durability, decreasing permeability, aiding in pumpability, and improving the overall hardened properties of concrete. The use of SCMs in concrete has also grown considerably over the past 30 years given they are typically by-products of industrial processes, and their use can contribute to environmental and energy conservation practices.
By using this product as a partial replacement, LMG can provide the following advantages:
• Replacing up to 30% of Portland cement in concrete mixes
• Avoiding 0.9 tonne of CO2 per tonne of Portland cement otherwise produced in the cement making process.
• No additional CO2 is produced during its production in the LMG process.
• Supply stronger, more durable high-performance concretes that helps reduce global climate impact by lowering energy consumption and greenhouse gas emissions.
• Char is produced from the acid leach step of the process and can be utilised as a charcoal replacement in fuel products such as heating briquettes.
• Amorphous silica is a similar product to Supplementary Cementitious Material and be utilised in the cement industry.
• Iron oxide or more specifically Hematite is a high-grade iron product that can be used as a complementary feedstock to Iron Ore in steelmaking.
• Calcium Carbonate is a pure lime product that can be utilised as an agricultural lime in agricultural industries.
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