Than the twentieth Century 80's improved design method of
Raymond mill, domestic Raymond mill technology have made new progress, many experts point out that, development of Raymond mill technology and mix design must be closely linked, so some people according to current Raymond mill technology, started in accordance with the characteristics and properties of Raymond mill, with the than the new design method of the research and development of Raymond mill.
The specific method of the development of Shanghai city is by the application of Philae (Feret) intensity theory evolution to the strength of Raymond mill theoretical formula, to carry out basic research on the design method of Raymond mill ratio, thus starting the development of design than the new method of Raymond mill in china.
In twentieth Century 60 years to 80 years, the domestic and foreign experts on spend a lot of time to study many methods, including Britain's I.A.Smith method with the proposed inference, thorough, and later developed into the mix design method of using Raymond mill gelation efficiency coefficient K and equivalent water cement ratio of Raymond mill as the theoretical basis of consistency and 28d etc.
