Abstract
THE discovery of a simple law relating to continuity of particle size in fine grinding (or the breaking up larger into smaller particles) has long been a matter of scientific and technical importance. By means of experiments extending over some years, the British Portland Cement Research Association has definitely ascertained that, so far as a crystalline substance such as “standard sand” is concerned, a definite law does undoubtedly exist, which may be defined mathematically as follows:
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BLYTH, C., MARTIN, G. & TONGUE, H. Law governing the Connexion between the Number of Particles and their Diameters in grinding Crushed Sand. Nature 111, 842–843 (1923). https://doi.org/10.1038/111842a0
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DOI: https://doi.org/10.1038/111842a0
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