I03 cement June 2010 GS gct IEA ETSAP
COSTS – Investment costs estimates differ depending on the source According to the International Energy Agency cement plants would increase to 115 130 kWh t cement in 2030 and to 115 145 kWh t cement in 2050 step clinker is ground in a grinding mill with calcium sulphates gypsum or anhydrite and with possible