Lafarge has reached an agreement with U.S. start-up Solidia Technologies to commercialize an innovative technology allowing a significant reduction in the environmental footprint of pre-cast concrete. The patented technology reduces the carbon footprint of the entire process by up to 70% and initial commercial launch is set for key North American and European markets.
According to a press release:
Solidia has developed a new binder made from similar raw materials to Ordinary Portland Cement and produced in a traditional rotary kiln. It is produced at lower temperatures and through a different chemical reaction that generates less CO2.
Used afterwards in the manufacture of precast concrete, Solidia Cement™ hardens through the addition and absorption of CO2 (‘carbonation’), in a patented curing process that reduces the overall carbon footprint by up to 70%.
Produced at traditional precast concrete manufacturing facilities, Solidia Concrete™ is higher performing and reaches full strength in less than 24 hours, compared to 28 days for precast concrete made using Ordinary Portland Cement. This offers considerable energy savings and cost reductions to precast concrete manufacturers.