Role of Cement in Civilization and Global Warming
Role of cement in civilization and the need to build more structures is undeniable. Romans and Persians used cement to build structures. However, cement contributes to 6-8% of the total global CO2 emission. The main root of Co2 emission is energy used for calcination of limestone and CO2 freed from calcination of CaCO3. Geopolymers are alternative materials to replace cement.