More on CelitementAt a first glance, Celitements are rather strange hydraulic binders. They already contain water, which is chemically bound within these novel hydraulically active calcium hydrosilicates. Key is the amount of water and the type of incorporation.
Conventional cements are free of water - after the addition of water hydration reaction starts and solidification takes place. Celitements plus water, sand and aggregate can be processed to concrete like Ordinary Portland Cements (OPC).
Production of Celitement is achieved at temperatures below 300°C. Compared to OPC clinker (rotary kiln, 1.450°C), low process temperature and reduced limestone content economise substantially on energy.
Celitements are compatible to OPC and reveal excellent properties. Phase composition is very homogeneous; i.e. regulation of properties is straightforward and simple, e.g. strength as a funciton of time.
The basic principles of Celitement materials and the production process are an invention of Karlsruhe Institute of Technology KIT.