COMPLEX MODIFYING ADDITIVES FOR CEMENT CONSTRUCTION MIXES
https://doi.org/10.31675/1607-1859-2019-21-6-140-148
Abstract
It is currently relevant to study the use of local waste based on mineral finely dispersed additives similar to substances that are formed as a result of cement hydration, which ensures high quality, increases frost resistance and forms a dense dissolved mixture. Reducing the consumption of a binder in mortar and concrete mixtures due to the introduction of modifying additives is also an important research field. The paper presents the results associated with pro-ducing a complex modifying additive consisting of waste products from marble and silicon di-oxide nanoparticles and its effect on the properties of cement systems. It is shown that the introduction of a modifying additive, while reducing cement consumption, can increase the compressive strength of cement paste up to 56 %. The X-ray phase analysis is used to determine the composition of the modified cement paste. The efficiency of using marble production wastes together with SiO2 nanoparticles as a complex modifying additive is evaluated to im-prove the properties of the cement mix.
About the Authors
A. A. Kulikova
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Anzhelika A. Kulikova, Graduate Student
2, Solyanaya Sq., 634003, Tomsk
O. V. Dem'yanenko
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Olga V. Dem'yanenko, Research Assistant
2, Solyanaya Sq., 634003, Tomsk
E. A. Sorokina
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Ekaterina A. Sorokina, Research Assistant
2, Solyanaya Sq., 634003, Tomsk
N. O. Kopanitsa
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Natal'ya O. Kopanitsa, DSc, Professor
2, Solyanaya Sq., 634003, Tomsk
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Review
For citations:
Kulikova A.A., Dem'yanenko O.V., Sorokina E.A., Kopanitsa N.O. COMPLEX MODIFYING ADDITIVES FOR CEMENT CONSTRUCTION MIXES. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2019;(6):140-148. (In Russ.) https://doi.org/10.31675/1607-1859-2019-21-6-140-148
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