Research in the Activity of a Pozzolanic Component and Superplasticizer for Gypsum Cement Pozzolanic Binder of White Colour (GCPB)

The way of selecting the optimal quantity of an active mineral additive (AMA) and the superplasticizer in the composition of GCPB of white colour for facade tiles is proposed. A number of industrial and natural powdered products of white colour (white carbon, microsilica Kovelos, expanded perlite sand, marshallit, and metakaolin) with the use of the chemical method on the absorption of CaO from the solution in a three-component system “gypsum – cement – AMA (additive)” have been studied. The best activity was shown by metakaolin and “Kovelos”, which were recommended for use. According to the obtained results, tiles and test beams with various superplasticizers (from LST to Melflux) for regulation of mobility and setting time were made from the selected composition of the white GCPB. The results of physical-mechanical tests of samples are presented. It was found that the developed composition of the white GCPB in combination with the superplasticizer STACHEMENT 2280 (FM) provide a sufficiently high strength at the beginning of setting during 15–17 min.

N.N. MOROZOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.V. KUZNETSOVA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.V. MAYSURADZE, Candidate of Sciences (Engineering),
R.R. AKHTARIEV, Student,
L.R. ABDRASHITOVA, Student,
E.R. NIZAMUTDINOVA, Student

Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)

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