Frost Resistance of Decorative Composites of Different Composition

Abstract:

The article considers issues relating to the decorative concrete stability to frost impact. The study of the influence of prescription factors on the frost resistance value of composite compositions, manufactured of high-mobility mixtures, was carried out according to a symmetrical 5-factor plan with 27 experiments. Depending on the nature of the effect on the decorative composite, the variable raw materials are grouped into two groups of factors - modifications of cement-sand system, parameters of dispersed reinforcement. Kinetic curves, correlation, experimental-statistical model were constructed based on the results of the field experiments. The results of the research demonstrated – the use of zeolite instead of part of cement, glass fibres and fillers of optimal granulometric composition in combination with a plasticiser contributes to reducing integral porosity and provides the preservation of composite strength, and accordingly, resistance to climate impacts, saving the decorative properties during the operation of the decorative composite.

• Periodical: Key Engineering Materials (Volume 864)
• Pages: 35-42
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.864.35
• Online since: September 2020
• Authors: Alexandra D. Dovgan*, Valeriy M. Vyrovoy, Petr M. Dovgan, Serhii V. Silchenko
• Keywords: Decorative Concrete, Experimental-Statistical Model, Frost Resistance, Glass Fibre, Strength, Superplasticiser, Water Absorption, Zeolite

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