Eric Walker added 3D Printed Homes Could Soon Be Made Out of Dirt | Freethink to 3D printing, Cement and Carbon dioxide

Eric Walker added Concrete, a Centuries-Old Material, Gets a New Recipe - The New York Times to Climate change and carbon and Cement

Eric Walker added Cement - Wikipedia to Cement

Eric Walker added a number of links to Cement, and added Cement to Amorphous solids

Eric Walker added Glass and Cement to Amorphous solids, and added Amorphous solids to Atoms, molecules, chemicals, minerals, materials and compounds