new companies & commercialize technologies, Constant Explosions Can Help Make Concrete Carbon Neutral concrete
National Renewable Energy Laboratory Research Group Manager Dan Schell says he gets to do the fun part.
Schell’s team conducts experiments like these to help DTE Materials, which has access to NREL expertise and equipment through the Shell GameChanger Accelerator Powered by NREL program. DTE’s patented process, called Clearwash, is designed to make anatomical changes to biomass to make it integrate with ceramic binders more effectively.
The explosions are well controlled and not hazardous, and Schell describes it as a release of pressure. The aggregates mixed with cement are traditionally made up of a specific type of sand that is not sourced from a beach or a desert. It often comes from a riverbed and is increasingly hard to find due to the unique shape created by this type of erosion that takes decades to complete. DTE Materials gets debris either directly from a sawmill or secondary processing sources. Currently, the startup is working with a wooden-pallet manufacturer, which brings its wood directly from the forest.
DTE Materials hopes the data gleaned from the explosions will lead them to optimize their feedstock. NREL will also help perform a techno-economic analysis after the explosion testing is complete. The hope is that the costs will be less expensive than sand on a volumetric basis.
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