CSA-belite cements

CSA-belite cements are made by heating/sintering industrial wastes such as fly ash, gypsum and limestone at approximately 1200^oC in rotary kilns.

They have been manufactured on an industrial scale in China for over 35 years.

In comparison with Portland cement CEM I, energy savings can be as high as 25 %, with limestone reductions of 60 % together with reductions in CO₂ emissions of around 20 %.

Further information can be found in the MPa Cement Fact Sheet 12