Proposing Wood Lightweight Concrete for CO2 Sequestration

Building materials made from renewable raw materials can help to improve the CO2 balance of building components or even serve as a CO2 sink (by including CO2 binding during plant growth). In so-called lightweight wood concretes (LWC) wood residues and sawdust are utilized. However, the high cement content required for this process has so far hardly resulted in any advantages regarding the CO2 balance of this building material. We report intermediate results from an ongoing project on the development of lightweight wood concrete formulations with an improved carbon footprint.