The Structural Engineer > Archive > Volume 3 (1925) > Issues > Issue 7 > The Fineness of Particles - Some Observations and Tentative Suggestions Prompted by Certain Phenomen
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The Fineness of Particles - Some Observations and Tentative Suggestions Prompted by Certain Phenomena Occurring in Connection with the Shape of Particles of Portland Cement and Powdered Spent Shale

SOME preliminary experiments were carried out comparing the tensile strength at the end of twenty-eight days of a typical Portland cement with that of a spent shale-lime mixture. The spent shale, which was waste material obtained from the Pumpherston Oil Co., was powdered and treated as a puzzolanic material, being mixed with an equal quality of powdered lime, and then gauged in the ordinary way. Elizabeth H.M. Georgeson

Author(s): Georgeson, Elizabeth H M

Keywords: portland cement;shale;comparing;cube tests;effects;shapes;interlock;fineness