Довгань, А. Д. and Довгань, П. М. and Ляшенко, Т. В. and Dovhan, A. D. and Dovhan, P. M. and Liashenko, T. V. (2018) ВЛИЯНИЕ ЦЕОЛИТА И СТЕКЛЯННЫХ ВОЛОКОН НА КИНЕТИКУ СТРУКТУРООБРАЗОВАНИЯ ЦЕМЕНТНЫХ КОМПОЗИЦИЙ. Вісник Національного університету водного господарства та природокористування (2(82)). pp. 273-287.

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Abstract

Представлены результаты исследования пластической прочности мелкозернистых цементных композиций. С помощью эксперимен- тально-статистических моделей второго порядка подтверждено, что замена части цементного вяжущего добавкой тонкодисперсно- го цеолита и введение гибридных стеклянных волокон позволяет управлять процессом начального структурообразования растворов.

Title in English

THE INFLUENCE OF ZEOLITE AND GLASS FIBRE ON STRUCTURE FORMATION OF CEMENT COMPOSITIONS

English abstract

Some results of studying the plastic strength of decorative concrete mixes are presented. Numerical characteristics of the process of initial structure formation were determined for 27 mixes according to experiment design. On the data obtained experimental-statistical models were built describing the fields of these criteria in coordinates of composition. Specifically, the model for plastic strength after half an hour of hardening has made it possible to evaluate the influence of fine zeolite and hybrid glass fibre on this index, with the help of computational experiment. The replacement of 8% of cement binder with the zeolite as active hydraulic additive speeds up the initial structure formation one and a half times. Individual and combined effects of two kinds of alkali resistant glass fibre, 6 and 12 mm long, also change the kinetics of structural strength growth; the upper dosages of fibres slow down the process of forming coagulation structure. An ability of polycarboxylate based superplasticiser to influence positively on intensity of hydration process and structure formation of the сement stone is confirmed.

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