About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | 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 Bulanov P.E. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Mavliev L.F. – assistant 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 article | The optimization of stone-sand mixture treated by portland cement in combination with plasticizer and water-repellent additive |
| Abstract. | One of the most important factors what affect on the durability of road surfacing to increase speed, intensity and axial loads. From the experience of the last years of operation of highways with heavy traffic, in the layers of road pavement promising is the use of crushed stone, sand mixtures treated with Portland cement. Also of great importance is the absence in many regions of the Russian Federation reserves durable stone materials, transportation of which leads to a significant increase in the cost of road construction. At the same time global and domestic experience has proven efficacy and significant advantages of application in the construction of road pavement strengthening of soil and processed materials in comparison with using of imported durable rubble. However, stone-sand mixtures treated Portland susceptible to cracking under the influence of time-varying temperature and humidity factors and have low resistance to frost. The most promising direction in solving this problem is to modify the rubble-sand mixture, Portland cement treated by plasticizer and water-repellent additives. Therefore, the aim of this work was to obtain the optimal composition of rubble-sand mixture, Portland cement treated with a complex additive based on giperplasticizer «Giperlit» and water repellent octyltriethoxysilane strength and frost rubble-sand mixture treated with Portland cement. Using the method of experiment planning dependences influence consumption of Portland cement, the composition and dosage of supplements on the basis of a comprehensive hiperplasticiser and water repellent on the physical and mechanical properties of the material was determined. |
| Keywords. | stone-sand mixture treated by portland cement, optimization of composition, physico-mechanical properties, water repellent, hiperplasticizer. |
| For citations: | Vdovin E.A., Bulanov P.E., Mavliev L.F. The optimization of stone-sand mixture treated by portland cement in combination with plasticizer and water-repellent additive // Izvestiya KGASU. 2015. №2(32) P.300-305. |
