Revathi et al. (2024): Effect of zeolite and bamboo biochar as CO2 absorbant in concrete

Srinivasan Revathi, Dobson Alice Elizabeth Tania, Sutharson Ancy Shadin, Jegatheesan Keerthana IN: Carbon Research 3, 43, https://doi.org/10.1007/s44246-024-00116-1

To reduce the CO₂ level in the atmosphere, efforts were made to prepare concrete that can absorb CO₂ by addition of zeolite and bamboo biochar. These materials were chosen because zeolite and bamboo biochar have large pore volume and large specific surface area and so they can absorb more CO₂. Zeolite is having more oxygen content and bamboo biochar is having more carbon content which helps in CO₂ absorption. In this work, Zeolite is substituted for fine aggregate in the varying ratios of 25% and 50% and bamboo biochar is substituted for cement in the ratios of 0.5%, 1% and 1.5%. The strength properties and CO₂ absorbing capacities of various zeolite and bamboo biochar concrete ratios were compared. 

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