Maria Gallucci and Jeff St. John of Canary Media report on six innovative startups that are kicking CO2 out of cement and concrete.
- Terra CO2 has found a way to create supplementary cement material–a common cement alternative–with a variety of silicate rocks.
- Terra CO2 estimates that every metric ton of cement replaced by these materials will result in 70 percent lower CO2 emissions compared to pure Portland cement.
- Brimstone, an Oakland-based startup, is replacing the limestone in cement with calcium-bearing silicate rocks that do not contain and carbon atoms, leading to carbon-free production process.
Read the full article here.