27 May '18, 4am

Biochar from wood-waste is added to cement to make it 20% stronger and 50% more watertight

Biochar from wood-waste is added to cement to make it 20% stronger and 50% more watertight

Furniture factories in Singapore generate huge amount of wood waste – about 530,000 tons in 2016 alone. This carbon-rich waste are usually either incinerated or dumped in a landfill. But thanks to a team of researchers in National University of Singapore (NUS) who developed a method that recycles these tons of carbon-rich waste into an admixture for cement and concrete. Biochar as a Carbon Sink A form of charcoal, biochar is produced from agricultural waste or biomass via pyrolysis and stored in the soil both as a supplement and as a carbon sink. Biochar is highly water absorbent and as such, used as a soil enhancer. Biochar is also considered as environment friendly due to its capability to reduce atmospheric carbon. Agricultural wastes degrade in a decade emitting carbon dioxide into the atmosphere, while biochar is a stable material that locks in carbon for thousands of...

Full article: https://www.greenoptimistic.com/how-can-wood-waste-make-c...

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