http://novaref.vn/en/products/refractory-materials/105-for-cement-industry/255-refractory-castables.html

Novaref produces only Low-Cement type Refractory Castables ( Refractory Concretes ) for cement rotary kilns. These castables are made from high quality raw materials and the mix reciepts designed for different service conditions in the kiln areas, such as:<br>Alkali Resistant Catables ( Refractory Concretes ) (Novacast-30AR, Novacast-45LC) - for use in Preheater Cyclones in order to eliminate the build-up of raw powder to refractory castables surface due to alkali attack