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THE ROLE OF MICROSILICA ADDITIVE IN CORROSION RESISTANT CEMENTITIOUS COMPOSITES

DOI: 10.46573/2658-7459-2024-4-24-30

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Authors

V.B. Petropavlovskaya, T.B. Novichenkova, K.S. Petropavlovskii, M.S. Zverev, R.Z. Tsybina

Abstract

The research is devoted to the topic of creating a highly dispersed mineral complex for the formation of corrosion-resistant cement stone with a compacted structure and high performance properties. The introduction of a highly active additive with a high content of amorphous phase has a positive effect on the structure of cement stone obtained on the basis of ordinary Portland cement. The spaces between hydration products and unreacted cement particles formed as a result of cement hydration are filled with air pores and dispersion medium including ions of calcium, sodium, potassium, OH-groups, as well as participating in the processes of cement stone structure formation. The introduction of microsilica phase in the appropriate proportion is reflected in the formation of pore space and properties of the obtained artificial stone. The properties of cement compositions with optimal formulation for use in road construction have been studied.

Keywords

portland cement, microsilica, structure, pore space.