Title Microsilica and plasticizing admixtures influence on cement slurry dilatancy
Another Title SiO2 mikordulkių suspensijos bei plastifikavimo priedų įtaka cemento tešlos dilatantiškumui.
Authors Daukšys, Mindaugas ; Skripkiūnas, Gintautas ; Ivanauskas, Ernestas
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Is Part of Materials science = Medžiagotyra.. Kaunas : Technologija. 2008, vol. 14, no. 2, p. 143-150.. ISSN 1392-1320. eISSN 2029-7289
Keywords [eng] Cement ; Microsilica ; Slurry ; Yield stress ; Viscosity ; Viscometer ; Dilatancy
Abstract [eng] Cement slurries and concrete mixtures have dilatant behaviour in their flow. This has negative influence on the mixtures transportation by concrete pumps. Therefore, it is important to know the factors that have effect on the mixtures dilatancy. The influence of microsilica and plasticizing admixtures on mixtures dilatancy is investigated in this work. Rheological properties of the mixtures were tested with a rotating viscometer with coaxial cylinders. Two indexes of mixtures dilatancy were evaluated as well investigation results of show that microsilica additives increase yield stress of cement slurry and reduce its viscosity and greatly reduce dilatancy of cement slurry due to its particles fineness and its spherical shape. Microsilica suspension with complex used with plasticizing admixtures has different effect on the dilatancy depending on chemical composition of admixture.
Published Kaunas : Technologija
Type Journal article
Language English
Publication date 2008
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