The Use of Plasticizers in Modified Gypsum Composites

Number of journal: 1-2-2019
Autors:

Petropavlovskaya V.B.
Zavad’ko M.Yu.
Petropavlovskii K.S.
Novichenkova T.B.
Buryanov A.F.

DOI: https://doi.org/10.31659/0585-430X-2019-767-1-2-28-35
УДК: 666.941.4

 

AbstractAbout AuthorsReferences
The use of dispersed fillers in order to improve the performance properties of gypsum materials requires the introduction of chemical additives to control the rheological characteristics of raw mixes. The study of the influence of various plasticizing additives on the properties of gypsum composites modified with a basaltic additive can improve the manufacturability of the process of structure formation and improve the quality of the material. In the experiments, additives of domestic and foreign production were used: Lakhta KMD PRO (St. Petersburg, Russia), Friplast 2 (Omsk, Russia), Melflux 1461f (Trostberg, Germany). The optimal values of water content for the studied ranges of injection of plasticizing additives are established. Introduction to the system based on hemihydrate and basalt filler polycarboxylate plasticizers is reflected in the structure and properties of the resulting composite. The most effective impact on the rheology and quality of raw mixes and the structure and properties of the resulting gypsum stone with a basalt additive was rendered by the addition of a Fryplast based polycarboxylate copolymer, which improves the quality of gypsum products. Basalt supplement is one of the most promising in the composition of the organo-mineral complex, that can not only participate in physical, but also in chemical processes that occur at the atomic-molecular level, during solidification of building mineral composites.
V.B. PETROPAVLOVSKAYA1, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
M.Yu.ZAVAD’KO1, Engineer
K.S. PETROPAVLOVSKII2, Engineer
T.B. NOVICHENKOVA1, Candidate of Sciences (Engineering)
A.F. BURYANOV2, Doctor of Sciences (Engineering)

1 National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)
2 Tver State Technical University (22, Afanasiy Nikitin Еmbankment, Tver, 170026, Russian Federation)

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For citation: Petropavlovskaya V.B., Zavad’ko M.Yu., Petropavlovskii K.S., Novichenkova T.B., Buryanov A.F. The use of plasticizers in modified gypsum composites. Stroitel’nye Materialy [Construction Materials]. 2019. No. 1–2, pp. 28–35. DOI: https://doi.org/10.31659/0585-430X-2019-767-1-2-28-35 (In Russian).


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