Frost Resistance of Decorative Composites of Different Composition

• Published in: Key engineering materials Vol. 864; pp. 35 - 42
• Main Authors: Silchenko, Serhii V., Dovgan, Alexandra D., Vyrovoy, Valeriy M., Dovgan, Petr M.
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 22.09.2020
• Subjects: Cement reinforcements; Composition; Decoration; Frost resistance; Glass fiber reinforced plastics; Impact resistance; Parameter modification; Porosity; Raw materials; Resistance factors; Statistical models; Zeolites; Experimental-Statistical Model; Superplasticiser; Decorative Concrete; Frost Resistance; Zeolite; Water Absorption; Strength; Glass Fibre
• DOI: 10.4028/www.scientific.net/KEM.864.35
• ISSN: 1013-9826; 1662-9795

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.