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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Bulanov P.E. – assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Mavliev L.F. – candidate of technical sciences, senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Vdovin E.A. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zaharov V.V. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Gimazov A.R. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleThe investigation of the effect of polycarboxylate superplasticizer on the physical and strength properties of clay soils with different mineral composition
Abstract.Investigations of the influence of a number of polycarboxylate superplasticizers on the physical and mechanical properties of clay soils were done. As clay soils were considered: the silty easy loam with containing of relict minerals more than 85 % (52,49 % quartz), the kaolinic clay with containing of the mineral kaolinite up to 95 %, the bentonite clay with containing of montmorillonite up to 70 %. As the physical properties were chosen the fluidity and rolling-out limit, the optimum moisture content and the maximum density, strength – the ultimate compressive strength. Data on changes in the properties with the introduction of polycarboxylate superplasticizers was got. The most effective polycarboxylate superplasticizer showed maximum efficiency. It determined that in the ground with the most clay minerals traced greater influence these additives, especially in case of kaolinic clay. Adsorption surface-active reagents on clay minerals surfactants in clay-water system lets to reduce the surface energy on the interface, thereby increasing the density by decreasing the water requirement (optimum moisture content), lower fluidity and rolling-out limit, and ultimately increase the strength of the soil. The positive effect of polycarboxylate superplasticizers both the physical and mechanical properties of the cement stone, and on physical and mechanical properties of clay soils explains the increase in the strength and hardiness soil-cements modified such additives.
Keywords.polycarboxylate superplasticizer, clay soil, plasticity index, optimum moisture content, maximum density, ultimate compressive strength.
For citations:Bulanov P.E., Mavliev L.F., Vdovin E.A., Zaharov V.V., Gimazov A.R. The investigation of the effect of polycarboxylate superplasticizer on the physical and strength properties of clay soils with different mineral composition // Izvestiya KGASU. 2016. №4(38) P.469-476.


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