Something More Concrete

Global temperatures are rising due to CO2 emissions from various industries, with the construction sector contributing significantly to the carbon footprint.

Notably, when biochar is added to cement and concrete, it absorbs more than twice its own weight in CO, acting as a carbon sink/carbon capture device, keeping that C02 from the atmosphere, whereas steel and concrete do not.

Biochar also improves the quality of pavement materials like asphalt during road construction. Using biochar as a binding agent increases the high-temperature properties of asphalt by up to 35% allowing the pavement to be more stable and bound together when the temperature is warmer.

All this offers hope for a more climate-conscious variety of cement and cement-like construction materials in the future.

Key Points

  • Biochar construction materials can absorb more than twice their own weight in CO2, acting as a carbon sink, whereas steel and concrete have zero effect on carbon capture.
  • Biochar has been proven to improve the high-temperature properties of pavement materials, such as asphalt, by up to 35%.