Preparation and optimization of Alinite cement in various temperatures andCaCl2 content

A class of cement based on a new cementitous phase Alinite has been produce d by clinkering at 1150 degrees C. An important empirical correlation betwe en free lime of Alinite cement clinker and weight percent of CaCl2 content in raw mix in various temperatures has been established for the purpose of clinker mix design. The optimum CaCl2 addition to the raw mix is found to b e 5-6% by weight. Alinite clinkers which are very friable can be produced a t 1150 degrees C. In addition to the substantial energy saving, these cemen ts have also been found to be relatively insensitive to various impurities in the raw mix. This low temperature clinkering route thus appears to be a promising method of converting industrial wastes into hydraulic setting cem ents.