About CO2 absorption concrete: thermometer and hygrometer.

Introduction of a thermometer for managing the carbon dioxide (CO2) absorption concrete experimental furnace.

The development of concrete that absorbs CO2 is underway. Using industrial by-products such as calcium carbonate (CaCO3) and those emitted from steel mills, thermal power plants, cement factories, and chemical plants (such as blast furnace slag), the development of concrete that absorbs carbon dioxide (CO2) is progressing. The reaction between cement and CO2 leads to carbonation, allowing for the absorption and retention of CO2. Additionally, it can maintain a strongly alkaline environment internally, which enhances durability and is expected to increase longevity. *Current concrete is made by mixing raw materials such as limestone and clay, followed by drying, grinding, and sintering (referred to as clinker), after which gypsum is added and powdered.* This development has garnered attention, being featured in the Ministry of Economy, Trade and Industry's "Green Growth Strategy for Carbon Neutrality by 2050" under the "Carbon Recycling Industry." In this development, managing the atmosphere's dry and wet conditions is necessary, and thermometers and hygrometers (thermo-hygrometers) that can withstand high temperatures and high humidity are used in experimental furnaces.

Thermo-hygrometer