Biochar in Concrete

Sep 20, 2022

Houses, roads, industrial parks – all are still traditionally built with concrete. Though, the steadily increasing demand is accompanied by an increasing scarcity of resources.

At the same time the greenhouse gas emissions of the concrete industry accounts for more than 11 percent of global emissions. Due to the problematic Life Cycle Assessment of concrete, improvement and alternatives are needed. The good news is – the construction industry can make a major contribution to climate protection through carbon storage.

Benefits of Concrete with Biochar

  • Improved mechanical properties such as compressive strength and fire resistance
  • Reduced carbon footprint of buildings and road infrastructure
  • When incorporated into roads: pollutant retention, adsorption of de-icing salts and petroleum residues, filtration of rainwater

Biochar is an efficient binder used in concrete.

In certain mixes, the targeted addition can improve flexural strength and fire resistance. Biochar improves the rheology of concrete. In buildings, biochar provides chemical stability, water holding capacity and crack resistance of concrete.

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