Belite cements and their activation

Belite cements, BCs, containing mainly belite, alite and calcium aluminates, are currently used as low heat cements. These binders produce high amounts of C–S–H gel have very good durability properties which reviewed. Additional advantages include: (i) lower limestone demand, with associated CO2 emissions; (ii) energy demand; (iii) kiln operating temperature, means lowering NOx emissions from fuel burning; (iv) temperature increase at early hydration age. However, early-age strength developments not competitive those Portland Hence, to improve their is a research priority known activation. This enhancement can be attained by three compatible approaches: chemical, physical; admixture activations. The current status for BCs activation reviewed including: cost-effective element substitutions stabilize high-temperature forms; fast cooling, milling mild physical activation; the use seeds After discussion resulting microstructures, outlook exercised.