INFLUENCE OF CLAY PARTICLES OF VARIOUS SANDS ON THE EFFECTIVENESS OF POLYCARBOXYLATE SUPERPLASTICIZERS AND THE PROPERTIES OF CEMENT STONE
Abstract
The work is devoted to the study of the influence of clay minerals from the sands of various deposits on the efficiency of polycarboxylate superplasticizers in cement systems and on the properties of cement stone. The results of studying the composition of clay minerals in the sands of different deposits of the Chelyabinsk region are presented. It has been established that the effectiveness of polycarboxylate superplasticizers decreases the clay mineral montmorillonite to a greater extent. An assessment was made of the possibility of using various sands containing up to 2% clay minerals in order to obtain high performance concretes. To ensure the high efficiency of polycarboxylate superplasticizers in concretes on cement binders, it is necessary to use washed sands.
About the Authors
A. A. Hickov
South Ural State University (National Research University)
Russian Federation
Russian Federation
I. M. Ivanov
South Ural State University (National Research University)
Russian Federation
Russian Federation
L. Y. Kramar
South Ural State University (National Research University)
Russian Federation
Russian Federation
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Review
For citations:
Hickov A.A., Ivanov I.M., Kramar L.Y. INFLUENCE OF CLAY PARTICLES OF VARIOUS SANDS ON THE EFFECTIVENESS OF POLYCARBOXYLATE SUPERPLASTICIZERS AND THE PROPERTIES OF CEMENT STONE. Building and Reconstruction. 2018;(6):102-116. (In Russ.)
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